/* * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You under the Apache License, Version 2.0 * (the "License"); you may not use this file except in compliance with * the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package org.apache.commons.lang3; import static org.junit.Assert.assertArrayEquals; import static org.junit.Assert.assertEquals; import static org.junit.Assert.assertFalse; import static org.junit.Assert.assertNotNull; import static org.junit.Assert.assertNotSame; import static org.junit.Assert.assertNull; import static org.junit.Assert.assertSame; import static org.junit.Assert.assertTrue; import static org.junit.Assert.fail; import java.lang.reflect.Constructor; import java.lang.reflect.Modifier; import java.util.Arrays; import java.util.Comparator; import java.util.Date; import java.util.Map; import java.util.Random; import org.junit.Test; /** * Unit tests {@link org.apache.commons.lang3.ArrayUtils}. */ @SuppressWarnings("deprecation") // deliberate use of deprecated code public class ArrayUtilsTest { /** A predefined seed used to initialize {@link Random} in order to get predictable results */ private static final long SEED = 16111981L; //----------------------------------------------------------------------- @Test public void testConstructor() { assertNotNull(new ArrayUtils()); final Constructor[] cons = ArrayUtils.class.getDeclaredConstructors(); assertEquals(1, cons.length); assertTrue(Modifier.isPublic(cons[0].getModifiers())); assertTrue(Modifier.isPublic(ArrayUtils.class.getModifiers())); assertFalse(Modifier.isFinal(ArrayUtils.class.getModifiers())); } //----------------------------------------------------------------------- @Test public void testToString() { assertEquals("{}", ArrayUtils.toString(null)); assertEquals("{}", ArrayUtils.toString(new Object[0])); assertEquals("{}", ArrayUtils.toString(new String[0])); assertEquals("{}", ArrayUtils.toString(new String[]{null})); assertEquals("{pink,blue}", ArrayUtils.toString(new String[]{"pink", "blue"})); assertEquals("", ArrayUtils.toString(null, "")); assertEquals("{}", ArrayUtils.toString(new Object[0], "")); assertEquals("{}", ArrayUtils.toString(new String[0], "")); assertEquals("{}", ArrayUtils.toString(new String[]{null}, "")); assertEquals("{pink,blue}", ArrayUtils.toString(new String[]{"pink", "blue"}, "")); } //----------------------------------------------------------------------- @Test public void testHashCode() { final long[][] array1 = new long[][]{{2, 5}, {4, 5}}; final long[][] array2 = new long[][]{{2, 5}, {4, 6}}; assertTrue(ArrayUtils.hashCode(array1) == ArrayUtils.hashCode(array1)); assertFalse(ArrayUtils.hashCode(array1) == ArrayUtils.hashCode(array2)); final Object[] array3 = new Object[]{new String(new char[]{'A', 'B'})}; final Object[] array4 = new Object[]{"AB"}; assertTrue(ArrayUtils.hashCode(array3) == ArrayUtils.hashCode(array3)); assertTrue(ArrayUtils.hashCode(array3) == ArrayUtils.hashCode(array4)); final Object[] arrayA = new Object[]{new boolean[]{true, false}, new int[]{6, 7}}; final Object[] arrayB = new Object[]{new boolean[]{true, false}, new int[]{6, 7}}; assertTrue(ArrayUtils.hashCode(arrayB) == ArrayUtils.hashCode(arrayA)); } //----------------------------------------------------------------------- private void assertIsEquals(final Object array1, final Object array2, final Object array3) { assertTrue(ArrayUtils.isEquals(array1, array1)); assertTrue(ArrayUtils.isEquals(array2, array2)); assertTrue(ArrayUtils.isEquals(array3, array3)); assertFalse(ArrayUtils.isEquals(array1, array2)); assertFalse(ArrayUtils.isEquals(array2, array1)); assertFalse(ArrayUtils.isEquals(array1, array3)); assertFalse(ArrayUtils.isEquals(array3, array1)); assertFalse(ArrayUtils.isEquals(array1, array2)); assertFalse(ArrayUtils.isEquals(array2, array1)); } @Test public void testIsEquals() { final long[][] larray1 = new long[][]{{2, 5}, {4, 5}}; final long[][] larray2 = new long[][]{{2, 5}, {4, 6}}; final long[] larray3 = new long[]{2, 5}; this.assertIsEquals(larray1, larray2, larray3); final int[][] iarray1 = new int[][]{{2, 5}, {4, 5}}; final int[][] iarray2 = new int[][]{{2, 5}, {4, 6}}; final int[] iarray3 = new int[]{2, 5}; this.assertIsEquals(iarray1, iarray2, iarray3); final short[][] sarray1 = new short[][]{{2, 5}, {4, 5}}; final short[][] sarray2 = new short[][]{{2, 5}, {4, 6}}; final short[] sarray3 = new short[]{2, 5}; this.assertIsEquals(sarray1, sarray2, sarray3); final float[][] farray1 = new float[][]{{2, 5}, {4, 5}}; final float[][] farray2 = new float[][]{{2, 5}, {4, 6}}; final float[] farray3 = new float[]{2, 5}; this.assertIsEquals(farray1, farray2, farray3); final double[][] darray1 = new double[][]{{2, 5}, {4, 5}}; final double[][] darray2 = new double[][]{{2, 5}, {4, 6}}; final double[] darray3 = new double[]{2, 5}; this.assertIsEquals(darray1, darray2, darray3); final byte[][] byteArray1 = new byte[][]{{2, 5}, {4, 5}}; final byte[][] byteArray2 = new byte[][]{{2, 5}, {4, 6}}; final byte[] byteArray3 = new byte[]{2, 5}; this.assertIsEquals(byteArray1, byteArray2, byteArray3); final char[][] charArray1 = new char[][]{{2, 5}, {4, 5}}; final char[][] charArray2 = new char[][]{{2, 5}, {4, 6}}; final char[] charArray3 = new char[]{2, 5}; this.assertIsEquals(charArray1, charArray2, charArray3); final boolean[][] barray1 = new boolean[][]{{true, false}, {true, true}}; final boolean[][] barray2 = new boolean[][]{{true, false}, {true, false}}; final boolean[] barray3 = new boolean[]{false, true}; this.assertIsEquals(barray1, barray2, barray3); final Object[] array3 = new Object[]{new String(new char[]{'A', 'B'})}; final Object[] array4 = new Object[]{"AB"}; assertTrue(ArrayUtils.isEquals(array3, array3)); assertTrue(ArrayUtils.isEquals(array3, array4)); assertTrue(ArrayUtils.isEquals(null, null)); assertFalse(ArrayUtils.isEquals(null, array4)); } //----------------------------------------------------------------------- /** * Tests generic array creation with parameters of same type. */ @Test public void testArrayCreation() { final String[] array = ArrayUtils.toArray("foo", "bar"); assertEquals(2, array.length); assertEquals("foo", array[0]); assertEquals("bar", array[1]); } /** * Tests generic array creation with general return type. */ @Test public void testArrayCreationWithGeneralReturnType() { final Object obj = ArrayUtils.toArray("foo", "bar"); assertTrue(obj instanceof String[]); } /** * Tests generic array creation with parameters of common base type. */ @Test public void testArrayCreationWithDifferentTypes() { final Number[] array = ArrayUtils.toArray(Integer.valueOf(42), Double.valueOf(Math.PI)); assertEquals(2, array.length); assertEquals(Integer.valueOf(42), array[0]); assertEquals(Double.valueOf(Math.PI), array[1]); } /** * Tests generic array creation with generic type. */ @Test public void testIndirectArrayCreation() { final String[] array = toArrayPropagatingType("foo", "bar"); assertEquals(2, array.length); assertEquals("foo", array[0]); assertEquals("bar", array[1]); } /** * Tests generic empty array creation with generic type. */ @Test public void testEmptyArrayCreation() { final String[] array = ArrayUtils.toArray(); assertEquals(0, array.length); } /** * Tests indirect generic empty array creation with generic type. */ @Test public void testIndirectEmptyArrayCreation() { final String[] array = ArrayUtilsTest.toArrayPropagatingType(); assertEquals(0, array.length); } @SafeVarargs private static T[] toArrayPropagatingType(final T... items) { return ArrayUtils.toArray(items); } //----------------------------------------------------------------------- @Test public void testToMap() { Map map = ArrayUtils.toMap(new String[][]{{"foo", "bar"}, {"hello", "world"}}); assertEquals("bar", map.get("foo")); assertEquals("world", map.get("hello")); assertNull(ArrayUtils.toMap(null)); try { ArrayUtils.toMap(new String[][]{{"foo", "bar"}, {"short"}}); fail("exception expected"); } catch (final IllegalArgumentException ex) { } try { ArrayUtils.toMap(new Object[]{new Object[]{"foo", "bar"}, "illegal type"}); fail("exception expected"); } catch (final IllegalArgumentException ex) { } try { ArrayUtils.toMap(new Object[]{new Object[]{"foo", "bar"}, null}); fail("exception expected"); } catch (final IllegalArgumentException ex) { } map = ArrayUtils.toMap(new Object[]{new Map.Entry() { @Override public Object getKey() { return "foo"; } @Override public Object getValue() { return "bar"; } @Override public Object setValue(final Object value) { throw new UnsupportedOperationException(); } @Override public boolean equals(final Object o) { throw new UnsupportedOperationException(); } @Override public int hashCode() { throw new UnsupportedOperationException(); } }}); assertEquals("bar", map.get("foo")); } //----------------------------------------------------------------------- @Test public void testClone() { assertArrayEquals(null, ArrayUtils.clone((Object[]) null)); Object[] original1 = new Object[0]; Object[] cloned1 = ArrayUtils.clone(original1); assertTrue(Arrays.equals(original1, cloned1)); assertTrue(original1 != cloned1); final StringBuilder builder = new StringBuilder("pick"); original1 = new Object[]{builder, "a", new String[]{"stick"}}; cloned1 = ArrayUtils.clone(original1); assertTrue(Arrays.equals(original1, cloned1)); assertTrue(original1 != cloned1); assertSame(original1[0], cloned1[0]); assertSame(original1[1], cloned1[1]); assertSame(original1[2], cloned1[2]); } @Test public void testCloneBoolean() { assertNull(ArrayUtils.clone((boolean[]) null)); final boolean[] original = new boolean[]{true, false}; final boolean[] cloned = ArrayUtils.clone(original); assertTrue(Arrays.equals(original, cloned)); assertTrue(original != cloned); } @Test public void testCloneLong() { assertNull(ArrayUtils.clone((long[]) null)); final long[] original = new long[]{0L, 1L}; final long[] cloned = ArrayUtils.clone(original); assertTrue(Arrays.equals(original, cloned)); assertTrue(original != cloned); } @Test public void testCloneInt() { assertNull(ArrayUtils.clone((int[]) null)); final int[] original = new int[]{5, 8}; final int[] cloned = ArrayUtils.clone(original); assertTrue(Arrays.equals(original, cloned)); assertTrue(original != cloned); } @Test public void testCloneShort() { assertNull(ArrayUtils.clone((short[]) null)); final short[] original = new short[]{1, 4}; final short[] cloned = ArrayUtils.clone(original); assertTrue(Arrays.equals(original, cloned)); assertTrue(original != cloned); } @Test public void testCloneChar() { assertNull(ArrayUtils.clone((char[]) null)); final char[] original = new char[]{'a', '4'}; final char[] cloned = ArrayUtils.clone(original); assertTrue(Arrays.equals(original, cloned)); assertTrue(original != cloned); } @Test public void testCloneByte() { assertNull(ArrayUtils.clone((byte[]) null)); final byte[] original = new byte[]{1, 6}; final byte[] cloned = ArrayUtils.clone(original); assertTrue(Arrays.equals(original, cloned)); assertTrue(original != cloned); } @Test public void testCloneDouble() { assertNull(ArrayUtils.clone((double[]) null)); final double[] original = new double[]{2.4d, 5.7d}; final double[] cloned = ArrayUtils.clone(original); assertTrue(Arrays.equals(original, cloned)); assertTrue(original != cloned); } @Test public void testCloneFloat() { assertNull(ArrayUtils.clone((float[]) null)); final float[] original = new float[]{2.6f, 6.4f}; final float[] cloned = ArrayUtils.clone(original); assertTrue(Arrays.equals(original, cloned)); assertTrue(original != cloned); } //----------------------------------------------------------------------- private class TestClass { } @Test public void testNullToEmptyGenericNull() { final TestClass[] output = ArrayUtils.nullToEmpty(null, TestClass[].class); assertTrue(output != null); assertTrue(output.length == 0); } @Test public void testNullToEmptyGenericEmpty() { final TestClass[] input = new TestClass[]{}; final TestClass[] output = ArrayUtils.nullToEmpty(input, TestClass[].class); assertSame(input, output); } @Test public void testNullToEmptyGeneric() { final TestClass[] input = new TestClass[]{new TestClass(), new TestClass()}; final TestClass[] output = ArrayUtils.nullToEmpty(input, TestClass[].class); assertSame(input, output); } @Test(expected = IllegalArgumentException.class) public void testNullToEmptyGenericNullType() { final TestClass[] input = new TestClass[]{}; ArrayUtils.nullToEmpty(input, null); } @Test public void testNullToEmptyBooleanNull() throws Exception { assertEquals(ArrayUtils.EMPTY_BOOLEAN_ARRAY, ArrayUtils.nullToEmpty((boolean[]) null)); } @Test public void testNullToEmptyBooleanEmptyArray() throws Exception { final boolean[] empty = new boolean[]{}; final boolean[] result = ArrayUtils.nullToEmpty(empty); assertEquals(ArrayUtils.EMPTY_BOOLEAN_ARRAY, result); assertNotSame(empty, result); } @Test public void testNullToEmptyBoolean() { final boolean[] original = new boolean[]{true, false}; assertEquals(original, ArrayUtils.nullToEmpty(original)); } @Test public void testNullToEmptyLongNull() throws Exception { assertEquals(ArrayUtils.EMPTY_LONG_ARRAY, ArrayUtils.nullToEmpty((long[]) null)); } @Test public void testNullToEmptyLongEmptyArray() throws Exception { final long[] empty = new long[]{}; final long[] result = ArrayUtils.nullToEmpty(empty); assertEquals(ArrayUtils.EMPTY_LONG_ARRAY, result); assertNotSame(empty, result); } @Test public void testNullToEmptyLong() { final long[] original = new long[]{1L, 2L}; assertEquals(original, ArrayUtils.nullToEmpty(original)); } @Test public void testNullToEmptyIntNull() throws Exception { assertEquals(ArrayUtils.EMPTY_INT_ARRAY, ArrayUtils.nullToEmpty((int[]) null)); } @Test public void testNullToEmptyIntEmptyArray() throws Exception { final int[] empty = new int[]{}; final int[] result = ArrayUtils.nullToEmpty(empty); assertEquals(ArrayUtils.EMPTY_INT_ARRAY, result); assertNotSame(empty, result); } @Test public void testNullToEmptyInt() { final int[] original = new int[]{1, 2}; assertEquals(original, ArrayUtils.nullToEmpty(original)); } @Test public void testNullToEmptyShortNull() throws Exception { assertEquals(ArrayUtils.EMPTY_SHORT_ARRAY, ArrayUtils.nullToEmpty((short[]) null)); } @Test public void testNullToEmptyShortEmptyArray() throws Exception { final short[] empty = new short[]{}; final short[] result = ArrayUtils.nullToEmpty(empty); assertEquals(ArrayUtils.EMPTY_SHORT_ARRAY, result); assertNotSame(empty, result); } @Test public void testNullToEmptyShort() { final short[] original = new short[]{1, 2}; assertEquals(original, ArrayUtils.nullToEmpty(original)); } @Test public void testNullToEmptyCharNull() throws Exception { assertEquals(ArrayUtils.EMPTY_CHAR_ARRAY, ArrayUtils.nullToEmpty((char[]) null)); } @Test public void testNullToEmptyCharEmptyArray() throws Exception { final char[] empty = new char[]{}; final char[] result = ArrayUtils.nullToEmpty(empty); assertEquals(ArrayUtils.EMPTY_CHAR_ARRAY, result); assertNotSame(empty, result); } @Test public void testNullToEmptyChar() { final char[] original = new char[]{'a', 'b'}; assertEquals(original, ArrayUtils.nullToEmpty(original)); } @Test public void testNullToEmptyByteNull() throws Exception { assertEquals(ArrayUtils.EMPTY_BYTE_ARRAY, ArrayUtils.nullToEmpty((byte[]) null)); } @Test public void testNullToEmptyByteEmptyArray() throws Exception { final byte[] empty = new byte[]{}; final byte[] result = ArrayUtils.nullToEmpty(empty); assertEquals(ArrayUtils.EMPTY_BYTE_ARRAY, result); assertNotSame(empty, result); } @Test public void testNullToEmptyByte() { final byte[] original = new byte[]{0x0F, 0x0E}; assertEquals(original, ArrayUtils.nullToEmpty(original)); } @Test public void testNullToEmptyDoubleNull() throws Exception { assertEquals(ArrayUtils.EMPTY_DOUBLE_ARRAY, ArrayUtils.nullToEmpty((double[]) null)); } @Test public void testNullToEmptyDoubleEmptyArray() throws Exception { final double[] empty = new double[]{}; final double[] result = ArrayUtils.nullToEmpty(empty); assertEquals(ArrayUtils.EMPTY_DOUBLE_ARRAY, result); assertNotSame(empty, result); } @Test public void testNullToEmptyDouble() { final double[] original = new double[]{1L, 2L}; assertEquals(original, ArrayUtils.nullToEmpty(original)); } @Test public void testNullToEmptyFloatNull() throws Exception { assertEquals(ArrayUtils.EMPTY_FLOAT_ARRAY, ArrayUtils.nullToEmpty((float[]) null)); } @Test public void testNullToEmptyFloatEmptyArray() throws Exception { final float[] empty = new float[]{}; final float[] result = ArrayUtils.nullToEmpty(empty); assertEquals(ArrayUtils.EMPTY_FLOAT_ARRAY, result); assertNotSame(empty, result); } @Test public void testNullToEmptyFloat() { final float[] original = new float[]{2.6f, 3.8f}; assertEquals(original, ArrayUtils.nullToEmpty(original)); } @Test public void testNullToEmptyObjectNull() throws Exception { assertArrayEquals(ArrayUtils.EMPTY_OBJECT_ARRAY, ArrayUtils.nullToEmpty((Object[]) null)); } @Test public void testNullToEmptyObjectEmptyArray() throws Exception { final Object[] empty = new Object[]{}; final Object[] result = ArrayUtils.nullToEmpty(empty); assertArrayEquals(ArrayUtils.EMPTY_OBJECT_ARRAY, result); assertNotSame(empty, result); } @Test public void testNullToEmptyObject() { final Object[] original = new Object[]{Boolean.TRUE, Boolean.FALSE}; assertArrayEquals(original, ArrayUtils.nullToEmpty(original)); } @Test public void testNullToEmptyClassNull() throws Exception { assertArrayEquals(ArrayUtils.EMPTY_CLASS_ARRAY, ArrayUtils.nullToEmpty((Class[]) null)); } @Test public void testNullToEmptyClassEmptyArray() throws Exception { final Class[] empty = {}; final Class[] result = ArrayUtils.nullToEmpty(empty); assertArrayEquals(ArrayUtils.EMPTY_CLASS_ARRAY, result); assertNotSame(empty, result); } @Test public void testNullToEmptyClass() { final Class[] original = {Object.class, String.class}; assertArrayEquals(original, ArrayUtils.nullToEmpty(original)); } @Test public void testNullToEmptyStringNull() throws Exception { assertArrayEquals(ArrayUtils.EMPTY_STRING_ARRAY, ArrayUtils.nullToEmpty((String[]) null)); } @Test public void testNullToEmptyStringEmptyArray() throws Exception { final String[] empty = new String[]{}; final String[] result = ArrayUtils.nullToEmpty(empty); assertArrayEquals(ArrayUtils.EMPTY_STRING_ARRAY, result); assertNotSame(empty, result); } @Test public void testNullToEmptyString() { final String[] original = new String[]{"abc", "def"}; assertArrayEquals(original, ArrayUtils.nullToEmpty(original)); } @Test public void testNullToEmptyBooleanObjectNull() throws Exception { assertArrayEquals(ArrayUtils.EMPTY_BOOLEAN_OBJECT_ARRAY, ArrayUtils.nullToEmpty((Boolean[]) null)); } @Test public void testNullToEmptyBooleanObjectEmptyArray() throws Exception { final Boolean[] empty = new Boolean[]{}; final Boolean[] result = ArrayUtils.nullToEmpty(empty); assertArrayEquals(ArrayUtils.EMPTY_BOOLEAN_OBJECT_ARRAY, result); assertNotSame(empty, result); } @Test public void testNullToEmptyBooleanObject() { final Boolean[] original = new Boolean[]{Boolean.TRUE, Boolean.FALSE}; assertArrayEquals(original, ArrayUtils.nullToEmpty(original)); } @Test public void testNullToEmptyLongObjectNull() throws Exception { assertArrayEquals(ArrayUtils.EMPTY_LONG_OBJECT_ARRAY, ArrayUtils.nullToEmpty((Long[]) null)); } @Test public void testNullToEmptyLongObjectEmptyArray() throws Exception { final Long[] empty = new Long[]{}; final Long[] result = ArrayUtils.nullToEmpty(empty); assertArrayEquals(ArrayUtils.EMPTY_LONG_OBJECT_ARRAY, result); assertNotSame(empty, result); } @Test public void testNullToEmptyLongObject() { @SuppressWarnings("boxing") final Long[] original = new Long[]{1L, 2L}; assertArrayEquals(original, ArrayUtils.nullToEmpty(original)); } @Test public void testNullToEmptyIntObjectNull() throws Exception { assertArrayEquals(ArrayUtils.EMPTY_INTEGER_OBJECT_ARRAY, ArrayUtils.nullToEmpty((Integer[]) null)); } @Test public void testNullToEmptyIntObjectEmptyArray() throws Exception { final Integer[] empty = new Integer[]{}; final Integer[] result = ArrayUtils.nullToEmpty(empty); assertArrayEquals(ArrayUtils.EMPTY_INTEGER_OBJECT_ARRAY, result); assertNotSame(empty, result); } @Test public void testNullToEmptyIntObject() { final Integer[] original = new Integer[]{1, 2}; assertArrayEquals(original, ArrayUtils.nullToEmpty(original)); } @Test public void testNullToEmptyShortObjectNull() throws Exception { assertArrayEquals(ArrayUtils.EMPTY_SHORT_OBJECT_ARRAY, ArrayUtils.nullToEmpty((Short[]) null)); } @Test public void testNullToEmptyShortObjectEmptyArray() throws Exception { final Short[] empty = new Short[]{}; final Short[] result = ArrayUtils.nullToEmpty(empty); assertArrayEquals(ArrayUtils.EMPTY_SHORT_OBJECT_ARRAY, result); assertNotSame(empty, result); } @Test public void testNullToEmptyShortObject() { @SuppressWarnings("boxing") final Short[] original = new Short[]{1, 2}; assertArrayEquals(original, ArrayUtils.nullToEmpty(original)); } @Test public void testNUllToEmptyCharObjectNull() throws Exception { assertArrayEquals(ArrayUtils.EMPTY_CHARACTER_OBJECT_ARRAY, ArrayUtils.nullToEmpty((Character[]) null)); } @Test public void testNullToEmptyCharObjectEmptyArray() throws Exception { final Character[] empty = new Character[]{}; final Character[] result = ArrayUtils.nullToEmpty(empty); assertArrayEquals(ArrayUtils.EMPTY_CHARACTER_OBJECT_ARRAY, result); assertNotSame(empty, result); } @Test public void testNullToEmptyCharObject() { final Character[] original = new Character[]{'a', 'b'}; assertArrayEquals(original, ArrayUtils.nullToEmpty(original)); } @Test public void testNullToEmptyByteObjectNull() throws Exception { assertArrayEquals(ArrayUtils.EMPTY_BYTE_OBJECT_ARRAY, ArrayUtils.nullToEmpty((Byte[]) null)); } @Test public void testNullToEmptyByteObjectEmptyArray() throws Exception { final Byte[] empty = new Byte[]{}; final Byte[] result = ArrayUtils.nullToEmpty(empty); assertArrayEquals(ArrayUtils.EMPTY_BYTE_OBJECT_ARRAY, result); assertNotSame(empty, result); } @Test public void testNullToEmptyByteObject() { final Byte[] original = new Byte[]{0x0F, 0x0E}; assertArrayEquals(original, ArrayUtils.nullToEmpty(original)); } @Test public void testNullToEmptyDoubleObjectNull() throws Exception { assertArrayEquals(ArrayUtils.EMPTY_DOUBLE_OBJECT_ARRAY, ArrayUtils.nullToEmpty((Double[]) null)); } @Test public void testNullToEmptyDoubleObjectEmptyArray() throws Exception { final Double[] empty = new Double[]{}; final Double[] result = ArrayUtils.nullToEmpty(empty); assertArrayEquals(ArrayUtils.EMPTY_DOUBLE_OBJECT_ARRAY, result); assertNotSame(empty, result); } @Test public void testNullToEmptyDoubleObject() { final Double[] original = new Double[]{1D, 2D}; assertArrayEquals(original, ArrayUtils.nullToEmpty(original)); } @Test public void testNullToEmptyFloatObjectNull() throws Exception { assertArrayEquals(ArrayUtils.EMPTY_FLOAT_OBJECT_ARRAY, ArrayUtils.nullToEmpty((Float[]) null)); } @Test public void testNullToEmptyFloatObjectEmptyArray() throws Exception { final Float[] empty = new Float[]{}; final Float[] result = ArrayUtils.nullToEmpty(empty); assertArrayEquals(ArrayUtils.EMPTY_FLOAT_OBJECT_ARRAY, result); assertNotSame(empty, result); } @Test public void testNullToEmptyFloatObject() { final Float[] original = new Float[]{2.6f, 3.8f}; assertArrayEquals(original, ArrayUtils.nullToEmpty(original)); } //----------------------------------------------------------------------- @Test public void testSubarrayObject() { final Object[] nullArray = null; final Object[] objectArray = {"a", "b", "c", "d", "e", "f"}; assertEquals("0 start, mid end", "abcd", StringUtils.join(ArrayUtils.subarray(objectArray, 0, 4))); assertEquals("0 start, length end", "abcdef", StringUtils.join(ArrayUtils.subarray(objectArray, 0, objectArray.length))); assertEquals("mid start, mid end", "bcd", StringUtils.join(ArrayUtils.subarray(objectArray, 1, 4))); assertEquals("mid start, length end", "bcdef", StringUtils.join(ArrayUtils.subarray(objectArray, 1, objectArray.length))); assertNull("null input", ArrayUtils.subarray(nullArray, 0, 3)); assertEquals("empty array", "", StringUtils.join(ArrayUtils.subarray(ArrayUtils.EMPTY_OBJECT_ARRAY, 1, 2))); assertEquals("start > end", "", StringUtils.join(ArrayUtils.subarray(objectArray, 4, 2))); assertEquals("start == end", "", StringUtils.join(ArrayUtils.subarray(objectArray, 3, 3))); assertEquals("start undershoot, normal end", "abcd", StringUtils.join(ArrayUtils.subarray(objectArray, -2, 4))); assertEquals("start overshoot, any end", "", StringUtils.join(ArrayUtils.subarray(objectArray, 33, 4))); assertEquals("normal start, end overshoot", "cdef", StringUtils.join(ArrayUtils.subarray(objectArray, 2, 33))); assertEquals("start undershoot, end overshoot", "abcdef", StringUtils.join(ArrayUtils.subarray(objectArray, -2, 12))); // array type tests final Date[] dateArray = {new java.sql.Date(new Date().getTime()), new Date(), new Date(), new Date(), new Date()}; assertSame("Object type", Object.class, ArrayUtils.subarray(objectArray, 2, 4).getClass().getComponentType()); assertSame("java.util.Date type", java.util.Date.class, ArrayUtils.subarray(dateArray, 1, 4).getClass().getComponentType()); assertNotSame("java.sql.Date type", java.sql.Date.class, ArrayUtils.subarray(dateArray, 1, 4).getClass().getComponentType()); try { @SuppressWarnings("unused") final java.sql.Date[] dummy = (java.sql.Date[]) ArrayUtils.subarray(dateArray, 1, 3); fail("Invalid downcast"); } catch (final ClassCastException e) { } } @Test public void testSubarrayLong() { final long[] nullArray = null; final long[] array = {999910, 999911, 999912, 999913, 999914, 999915}; final long[] leftSubarray = {999910, 999911, 999912, 999913}; final long[] midSubarray = {999911, 999912, 999913, 999914}; final long[] rightSubarray = {999912, 999913, 999914, 999915}; assertTrue("0 start, mid end", ArrayUtils.isEquals(leftSubarray, ArrayUtils.subarray(array, 0, 4))); assertTrue("0 start, length end", ArrayUtils.isEquals(array, ArrayUtils.subarray(array, 0, array.length))); assertTrue("mid start, mid end", ArrayUtils.isEquals(midSubarray, ArrayUtils.subarray(array, 1, 5))); assertTrue("mid start, length end", ArrayUtils.isEquals(rightSubarray, ArrayUtils.subarray(array, 2, array.length))); assertNull("null input", ArrayUtils.subarray(nullArray, 0, 3)); assertEquals("empty array", ArrayUtils.EMPTY_LONG_ARRAY, ArrayUtils.subarray(ArrayUtils.EMPTY_LONG_ARRAY, 1, 2)); assertEquals("start > end", ArrayUtils.EMPTY_LONG_ARRAY, ArrayUtils.subarray(array, 4, 2)); assertEquals("start == end", ArrayUtils.EMPTY_LONG_ARRAY, ArrayUtils.subarray(array, 3, 3)); assertTrue("start undershoot, normal end", ArrayUtils.isEquals(leftSubarray, ArrayUtils.subarray(array, -2, 4))); assertEquals("start overshoot, any end", ArrayUtils.EMPTY_LONG_ARRAY, ArrayUtils.subarray(array, 33, 4)); assertTrue("normal start, end overshoot", ArrayUtils.isEquals(rightSubarray, ArrayUtils.subarray(array, 2, 33))); assertTrue("start undershoot, end overshoot", ArrayUtils.isEquals(array, ArrayUtils.subarray(array, -2, 12))); // empty-return tests assertSame("empty array, object test", ArrayUtils.EMPTY_LONG_ARRAY, ArrayUtils.subarray(ArrayUtils.EMPTY_LONG_ARRAY, 1, 2)); assertSame("start > end, object test", ArrayUtils.EMPTY_LONG_ARRAY, ArrayUtils.subarray(array, 4, 1)); assertSame("start == end, object test", ArrayUtils.EMPTY_LONG_ARRAY, ArrayUtils.subarray(array, 3, 3)); assertSame("start overshoot, any end, object test", ArrayUtils.EMPTY_LONG_ARRAY, ArrayUtils.subarray(array, 8733, 4)); // array type tests assertSame("long type", long.class, ArrayUtils.subarray(array, 2, 4).getClass().getComponentType()); } @Test public void testSubarrayInt() { final int[] nullArray = null; final int[] array = {10, 11, 12, 13, 14, 15}; final int[] leftSubarray = {10, 11, 12, 13}; final int[] midSubarray = {11, 12, 13, 14}; final int[] rightSubarray = {12, 13, 14, 15}; assertTrue("0 start, mid end", ArrayUtils.isEquals(leftSubarray, ArrayUtils.subarray(array, 0, 4))); assertTrue("0 start, length end", ArrayUtils.isEquals(array, ArrayUtils.subarray(array, 0, array.length))); assertTrue("mid start, mid end", ArrayUtils.isEquals(midSubarray, ArrayUtils.subarray(array, 1, 5))); assertTrue("mid start, length end", ArrayUtils.isEquals(rightSubarray, ArrayUtils.subarray(array, 2, array.length))); assertNull("null input", ArrayUtils.subarray(nullArray, 0, 3)); assertEquals("empty array", ArrayUtils.EMPTY_INT_ARRAY, ArrayUtils.subarray(ArrayUtils.EMPTY_INT_ARRAY, 1, 2)); assertEquals("start > end", ArrayUtils.EMPTY_INT_ARRAY, ArrayUtils.subarray(array, 4, 2)); assertEquals("start == end", ArrayUtils.EMPTY_INT_ARRAY, ArrayUtils.subarray(array, 3, 3)); assertTrue("start undershoot, normal end", ArrayUtils.isEquals(leftSubarray, ArrayUtils.subarray(array, -2, 4))); assertEquals("start overshoot, any end", ArrayUtils.EMPTY_INT_ARRAY, ArrayUtils.subarray(array, 33, 4)); assertTrue("normal start, end overshoot", ArrayUtils.isEquals(rightSubarray, ArrayUtils.subarray(array, 2, 33))); assertTrue("start undershoot, end overshoot", ArrayUtils.isEquals(array, ArrayUtils.subarray(array, -2, 12))); // empty-return tests assertSame("empty array, object test", ArrayUtils.EMPTY_INT_ARRAY, ArrayUtils.subarray(ArrayUtils.EMPTY_INT_ARRAY, 1, 2)); assertSame("start > end, object test", ArrayUtils.EMPTY_INT_ARRAY, ArrayUtils.subarray(array, 4, 1)); assertSame("start == end, object test", ArrayUtils.EMPTY_INT_ARRAY, ArrayUtils.subarray(array, 3, 3)); assertSame("start overshoot, any end, object test", ArrayUtils.EMPTY_INT_ARRAY, ArrayUtils.subarray(array, 8733, 4)); // array type tests assertSame("int type", int.class, ArrayUtils.subarray(array, 2, 4).getClass().getComponentType()); } @Test public void testSubarrayShort() { final short[] nullArray = null; final short[] array = {10, 11, 12, 13, 14, 15}; final short[] leftSubarray = {10, 11, 12, 13}; final short[] midSubarray = {11, 12, 13, 14}; final short[] rightSubarray = {12, 13, 14, 15}; assertTrue("0 start, mid end", ArrayUtils.isEquals(leftSubarray, ArrayUtils.subarray(array, 0, 4))); assertTrue("0 start, length end", ArrayUtils.isEquals(array, ArrayUtils.subarray(array, 0, array.length))); assertTrue("mid start, mid end", ArrayUtils.isEquals(midSubarray, ArrayUtils.subarray(array, 1, 5))); assertTrue("mid start, length end", ArrayUtils.isEquals(rightSubarray, ArrayUtils.subarray(array, 2, array.length))); assertNull("null input", ArrayUtils.subarray(nullArray, 0, 3)); assertEquals("empty array", ArrayUtils.EMPTY_SHORT_ARRAY, ArrayUtils.subarray(ArrayUtils.EMPTY_SHORT_ARRAY, 1, 2)); assertEquals("start > end", ArrayUtils.EMPTY_SHORT_ARRAY, ArrayUtils.subarray(array, 4, 2)); assertEquals("start == end", ArrayUtils.EMPTY_SHORT_ARRAY, ArrayUtils.subarray(array, 3, 3)); assertTrue("start undershoot, normal end", ArrayUtils.isEquals(leftSubarray, ArrayUtils.subarray(array, -2, 4))); assertEquals("start overshoot, any end", ArrayUtils.EMPTY_SHORT_ARRAY, ArrayUtils.subarray(array, 33, 4)); assertTrue("normal start, end overshoot", ArrayUtils.isEquals(rightSubarray, ArrayUtils.subarray(array, 2, 33))); assertTrue("start undershoot, end overshoot", ArrayUtils.isEquals(array, ArrayUtils.subarray(array, -2, 12))); // empty-return tests assertSame("empty array, object test", ArrayUtils.EMPTY_SHORT_ARRAY, ArrayUtils.subarray(ArrayUtils.EMPTY_SHORT_ARRAY, 1, 2)); assertSame("start > end, object test", ArrayUtils.EMPTY_SHORT_ARRAY, ArrayUtils.subarray(array, 4, 1)); assertSame("start == end, object test", ArrayUtils.EMPTY_SHORT_ARRAY, ArrayUtils.subarray(array, 3, 3)); assertSame("start overshoot, any end, object test", ArrayUtils.EMPTY_SHORT_ARRAY, ArrayUtils.subarray(array, 8733, 4)); // array type tests assertSame("short type", short.class, ArrayUtils.subarray(array, 2, 4).getClass().getComponentType()); } @Test public void testSubarrChar() { final char[] nullArray = null; final char[] array = {'a', 'b', 'c', 'd', 'e', 'f'}; final char[] leftSubarray = {'a', 'b', 'c', 'd',}; final char[] midSubarray = {'b', 'c', 'd', 'e',}; final char[] rightSubarray = {'c', 'd', 'e', 'f',}; assertTrue("0 start, mid end", ArrayUtils.isEquals(leftSubarray, ArrayUtils.subarray(array, 0, 4))); assertTrue("0 start, length end", ArrayUtils.isEquals(array, ArrayUtils.subarray(array, 0, array.length))); assertTrue("mid start, mid end", ArrayUtils.isEquals(midSubarray, ArrayUtils.subarray(array, 1, 5))); assertTrue("mid start, length end", ArrayUtils.isEquals(rightSubarray, ArrayUtils.subarray(array, 2, array.length))); assertNull("null input", ArrayUtils.subarray(nullArray, 0, 3)); assertEquals("empty array", ArrayUtils.EMPTY_CHAR_ARRAY, ArrayUtils.subarray(ArrayUtils.EMPTY_CHAR_ARRAY, 1, 2)); assertEquals("start > end", ArrayUtils.EMPTY_CHAR_ARRAY, ArrayUtils.subarray(array, 4, 2)); assertEquals("start == end", ArrayUtils.EMPTY_CHAR_ARRAY, ArrayUtils.subarray(array, 3, 3)); assertTrue("start undershoot, normal end", ArrayUtils.isEquals(leftSubarray, ArrayUtils.subarray(array, -2, 4))); assertEquals("start overshoot, any end", ArrayUtils.EMPTY_CHAR_ARRAY, ArrayUtils.subarray(array, 33, 4)); assertTrue("normal start, end overshoot", ArrayUtils.isEquals(rightSubarray, ArrayUtils.subarray(array, 2, 33))); assertTrue("start undershoot, end overshoot", ArrayUtils.isEquals(array, ArrayUtils.subarray(array, -2, 12))); // empty-return tests assertSame("empty array, object test", ArrayUtils.EMPTY_CHAR_ARRAY, ArrayUtils.subarray(ArrayUtils.EMPTY_CHAR_ARRAY, 1, 2)); assertSame("start > end, object test", ArrayUtils.EMPTY_CHAR_ARRAY, ArrayUtils.subarray(array, 4, 1)); assertSame("start == end, object test", ArrayUtils.EMPTY_CHAR_ARRAY, ArrayUtils.subarray(array, 3, 3)); assertSame("start overshoot, any end, object test", ArrayUtils.EMPTY_CHAR_ARRAY, ArrayUtils.subarray(array, 8733, 4)); // array type tests assertSame("char type", char.class, ArrayUtils.subarray(array, 2, 4).getClass().getComponentType()); } @Test public void testSubarrayByte() { final byte[] nullArray = null; final byte[] array = {10, 11, 12, 13, 14, 15}; final byte[] leftSubarray = {10, 11, 12, 13}; final byte[] midSubarray = {11, 12, 13, 14}; final byte[] rightSubarray = {12, 13, 14, 15}; assertTrue("0 start, mid end", ArrayUtils.isEquals(leftSubarray, ArrayUtils.subarray(array, 0, 4))); assertTrue("0 start, length end", ArrayUtils.isEquals(array, ArrayUtils.subarray(array, 0, array.length))); assertTrue("mid start, mid end", ArrayUtils.isEquals(midSubarray, ArrayUtils.subarray(array, 1, 5))); assertTrue("mid start, length end", ArrayUtils.isEquals(rightSubarray, ArrayUtils.subarray(array, 2, array.length))); assertNull("null input", ArrayUtils.subarray(nullArray, 0, 3)); assertEquals("empty array", ArrayUtils.EMPTY_BYTE_ARRAY, ArrayUtils.subarray(ArrayUtils.EMPTY_BYTE_ARRAY, 1, 2)); assertEquals("start > end", ArrayUtils.EMPTY_BYTE_ARRAY, ArrayUtils.subarray(array, 4, 2)); assertEquals("start == end", ArrayUtils.EMPTY_BYTE_ARRAY, ArrayUtils.subarray(array, 3, 3)); assertTrue("start undershoot, normal end", ArrayUtils.isEquals(leftSubarray, ArrayUtils.subarray(array, -2, 4))); assertEquals("start overshoot, any end", ArrayUtils.EMPTY_BYTE_ARRAY, ArrayUtils.subarray(array, 33, 4)); assertTrue("normal start, end overshoot", ArrayUtils.isEquals(rightSubarray, ArrayUtils.subarray(array, 2, 33))); assertTrue("start undershoot, end overshoot", ArrayUtils.isEquals(array, ArrayUtils.subarray(array, -2, 12))); // empty-return tests assertSame("empty array, object test", ArrayUtils.EMPTY_BYTE_ARRAY, ArrayUtils.subarray(ArrayUtils.EMPTY_BYTE_ARRAY, 1, 2)); assertSame("start > end, object test", ArrayUtils.EMPTY_BYTE_ARRAY, ArrayUtils.subarray(array, 4, 1)); assertSame("start == end, object test", ArrayUtils.EMPTY_BYTE_ARRAY, ArrayUtils.subarray(array, 3, 3)); assertSame("start overshoot, any end, object test", ArrayUtils.EMPTY_BYTE_ARRAY, ArrayUtils.subarray(array, 8733, 4)); // array type tests assertSame("byte type", byte.class, ArrayUtils.subarray(array, 2, 4).getClass().getComponentType()); } @Test public void testSubarrayDouble() { final double[] nullArray = null; final double[] array = {10.123, 11.234, 12.345, 13.456, 14.567, 15.678}; final double[] leftSubarray = {10.123, 11.234, 12.345, 13.456,}; final double[] midSubarray = {11.234, 12.345, 13.456, 14.567,}; final double[] rightSubarray = {12.345, 13.456, 14.567, 15.678}; assertTrue("0 start, mid end", ArrayUtils.isEquals(leftSubarray, ArrayUtils.subarray(array, 0, 4))); assertTrue("0 start, length end", ArrayUtils.isEquals(array, ArrayUtils.subarray(array, 0, array.length))); assertTrue("mid start, mid end", ArrayUtils.isEquals(midSubarray, ArrayUtils.subarray(array, 1, 5))); assertTrue("mid start, length end", ArrayUtils.isEquals(rightSubarray, ArrayUtils.subarray(array, 2, array.length))); assertNull("null input", ArrayUtils.subarray(nullArray, 0, 3)); assertEquals("empty array", ArrayUtils.EMPTY_DOUBLE_ARRAY, ArrayUtils.subarray(ArrayUtils.EMPTY_DOUBLE_ARRAY, 1, 2)); assertEquals("start > end", ArrayUtils.EMPTY_DOUBLE_ARRAY, ArrayUtils.subarray(array, 4, 2)); assertEquals("start == end", ArrayUtils.EMPTY_DOUBLE_ARRAY, ArrayUtils.subarray(array, 3, 3)); assertTrue("start undershoot, normal end", ArrayUtils.isEquals(leftSubarray, ArrayUtils.subarray(array, -2, 4))); assertEquals("start overshoot, any end", ArrayUtils.EMPTY_DOUBLE_ARRAY, ArrayUtils.subarray(array, 33, 4)); assertTrue("normal start, end overshoot", ArrayUtils.isEquals(rightSubarray, ArrayUtils.subarray(array, 2, 33))); assertTrue("start undershoot, end overshoot", ArrayUtils.isEquals(array, ArrayUtils.subarray(array, -2, 12))); // empty-return tests assertSame("empty array, object test", ArrayUtils.EMPTY_DOUBLE_ARRAY, ArrayUtils.subarray(ArrayUtils.EMPTY_DOUBLE_ARRAY, 1, 2)); assertSame("start > end, object test", ArrayUtils.EMPTY_DOUBLE_ARRAY, ArrayUtils.subarray(array, 4, 1)); assertSame("start == end, object test", ArrayUtils.EMPTY_DOUBLE_ARRAY, ArrayUtils.subarray(array, 3, 3)); assertSame("start overshoot, any end, object test", ArrayUtils.EMPTY_DOUBLE_ARRAY, ArrayUtils.subarray(array, 8733, 4)); // array type tests assertSame("double type", double.class, ArrayUtils.subarray(array, 2, 4).getClass().getComponentType()); } @Test public void testSubarrayFloat() { final float[] nullArray = null; final float[] array = {10, 11, 12, 13, 14, 15}; final float[] leftSubarray = {10, 11, 12, 13}; final float[] midSubarray = {11, 12, 13, 14}; final float[] rightSubarray = {12, 13, 14, 15}; assertTrue("0 start, mid end", ArrayUtils.isEquals(leftSubarray, ArrayUtils.subarray(array, 0, 4))); assertTrue("0 start, length end", ArrayUtils.isEquals(array, ArrayUtils.subarray(array, 0, array.length))); assertTrue("mid start, mid end", ArrayUtils.isEquals(midSubarray, ArrayUtils.subarray(array, 1, 5))); assertTrue("mid start, length end", ArrayUtils.isEquals(rightSubarray, ArrayUtils.subarray(array, 2, array.length))); assertNull("null input", ArrayUtils.subarray(nullArray, 0, 3)); assertEquals("empty array", ArrayUtils.EMPTY_FLOAT_ARRAY, ArrayUtils.subarray(ArrayUtils.EMPTY_FLOAT_ARRAY, 1, 2)); assertEquals("start > end", ArrayUtils.EMPTY_FLOAT_ARRAY, ArrayUtils.subarray(array, 4, 2)); assertEquals("start == end", ArrayUtils.EMPTY_FLOAT_ARRAY, ArrayUtils.subarray(array, 3, 3)); assertTrue("start undershoot, normal end", ArrayUtils.isEquals(leftSubarray, ArrayUtils.subarray(array, -2, 4))); assertEquals("start overshoot, any end", ArrayUtils.EMPTY_FLOAT_ARRAY, ArrayUtils.subarray(array, 33, 4)); assertTrue("normal start, end overshoot", ArrayUtils.isEquals(rightSubarray, ArrayUtils.subarray(array, 2, 33))); assertTrue("start undershoot, end overshoot", ArrayUtils.isEquals(array, ArrayUtils.subarray(array, -2, 12))); // empty-return tests assertSame("empty array, object test", ArrayUtils.EMPTY_FLOAT_ARRAY, ArrayUtils.subarray(ArrayUtils.EMPTY_FLOAT_ARRAY, 1, 2)); assertSame("start > end, object test", ArrayUtils.EMPTY_FLOAT_ARRAY, ArrayUtils.subarray(array, 4, 1)); assertSame("start == end, object test", ArrayUtils.EMPTY_FLOAT_ARRAY, ArrayUtils.subarray(array, 3, 3)); assertSame("start overshoot, any end, object test", ArrayUtils.EMPTY_FLOAT_ARRAY, ArrayUtils.subarray(array, 8733, 4)); // array type tests assertSame("float type", float.class, ArrayUtils.subarray(array, 2, 4).getClass().getComponentType()); } @Test public void testSubarrayBoolean() { final boolean[] nullArray = null; final boolean[] array = {true, true, false, true, false, true}; final boolean[] leftSubarray = {true, true, false, true}; final boolean[] midSubarray = {true, false, true, false}; final boolean[] rightSubarray = {false, true, false, true}; assertTrue("0 start, mid end", ArrayUtils.isEquals(leftSubarray, ArrayUtils.subarray(array, 0, 4))); assertTrue("0 start, length end", ArrayUtils.isEquals(array, ArrayUtils.subarray(array, 0, array.length))); assertTrue("mid start, mid end", ArrayUtils.isEquals(midSubarray, ArrayUtils.subarray(array, 1, 5))); assertTrue("mid start, length end", ArrayUtils.isEquals(rightSubarray, ArrayUtils.subarray(array, 2, array.length))); assertNull("null input", ArrayUtils.subarray(nullArray, 0, 3)); assertEquals("empty array", ArrayUtils.EMPTY_BOOLEAN_ARRAY, ArrayUtils.subarray(ArrayUtils.EMPTY_BOOLEAN_ARRAY, 1, 2)); assertEquals("start > end", ArrayUtils.EMPTY_BOOLEAN_ARRAY, ArrayUtils.subarray(array, 4, 2)); assertEquals("start == end", ArrayUtils.EMPTY_BOOLEAN_ARRAY, ArrayUtils.subarray(array, 3, 3)); assertTrue("start undershoot, normal end", ArrayUtils.isEquals(leftSubarray, ArrayUtils.subarray(array, -2, 4))); assertEquals("start overshoot, any end", ArrayUtils.EMPTY_BOOLEAN_ARRAY, ArrayUtils.subarray(array, 33, 4)); assertTrue("normal start, end overshoot", ArrayUtils.isEquals(rightSubarray, ArrayUtils.subarray(array, 2, 33))); assertTrue("start undershoot, end overshoot", ArrayUtils.isEquals(array, ArrayUtils.subarray(array, -2, 12))); // empty-return tests assertSame("empty array, object test", ArrayUtils.EMPTY_BOOLEAN_ARRAY, ArrayUtils.subarray(ArrayUtils.EMPTY_BOOLEAN_ARRAY, 1, 2)); assertSame("start > end, object test", ArrayUtils.EMPTY_BOOLEAN_ARRAY, ArrayUtils.subarray(array, 4, 1)); assertSame("start == end, object test", ArrayUtils.EMPTY_BOOLEAN_ARRAY, ArrayUtils.subarray(array, 3, 3)); assertSame("start overshoot, any end, object test", ArrayUtils.EMPTY_BOOLEAN_ARRAY, ArrayUtils.subarray(array, 8733, 4)); // array type tests assertSame("boolean type", boolean.class, ArrayUtils.subarray(array, 2, 4).getClass().getComponentType()); } //----------------------------------------------------------------------- @Test public void testSameLength() { final Object[] nullArray = null; final Object[] emptyArray = new Object[0]; final Object[] oneArray = new Object[]{"pick"}; final Object[] twoArray = new Object[]{"pick", "stick"}; assertTrue(ArrayUtils.isSameLength(nullArray, nullArray)); assertTrue(ArrayUtils.isSameLength(nullArray, emptyArray)); assertFalse(ArrayUtils.isSameLength(nullArray, oneArray)); assertFalse(ArrayUtils.isSameLength(nullArray, twoArray)); assertTrue(ArrayUtils.isSameLength(emptyArray, nullArray)); assertTrue(ArrayUtils.isSameLength(emptyArray, emptyArray)); assertFalse(ArrayUtils.isSameLength(emptyArray, oneArray)); assertFalse(ArrayUtils.isSameLength(emptyArray, twoArray)); assertFalse(ArrayUtils.isSameLength(oneArray, nullArray)); assertFalse(ArrayUtils.isSameLength(oneArray, emptyArray)); assertTrue(ArrayUtils.isSameLength(oneArray, oneArray)); assertFalse(ArrayUtils.isSameLength(oneArray, twoArray)); assertFalse(ArrayUtils.isSameLength(twoArray, nullArray)); assertFalse(ArrayUtils.isSameLength(twoArray, emptyArray)); assertFalse(ArrayUtils.isSameLength(twoArray, oneArray)); assertTrue(ArrayUtils.isSameLength(twoArray, twoArray)); } @Test public void testSameLengthBoolean() { final boolean[] nullArray = null; final boolean[] emptyArray = new boolean[0]; final boolean[] oneArray = new boolean[]{true}; final boolean[] twoArray = new boolean[]{true, false}; assertTrue(ArrayUtils.isSameLength(nullArray, nullArray)); assertTrue(ArrayUtils.isSameLength(nullArray, emptyArray)); assertFalse(ArrayUtils.isSameLength(nullArray, oneArray)); assertFalse(ArrayUtils.isSameLength(nullArray, twoArray)); assertTrue(ArrayUtils.isSameLength(emptyArray, nullArray)); assertTrue(ArrayUtils.isSameLength(emptyArray, emptyArray)); assertFalse(ArrayUtils.isSameLength(emptyArray, oneArray)); assertFalse(ArrayUtils.isSameLength(emptyArray, twoArray)); assertFalse(ArrayUtils.isSameLength(oneArray, nullArray)); assertFalse(ArrayUtils.isSameLength(oneArray, emptyArray)); assertTrue(ArrayUtils.isSameLength(oneArray, oneArray)); assertFalse(ArrayUtils.isSameLength(oneArray, twoArray)); assertFalse(ArrayUtils.isSameLength(twoArray, nullArray)); assertFalse(ArrayUtils.isSameLength(twoArray, emptyArray)); assertFalse(ArrayUtils.isSameLength(twoArray, oneArray)); assertTrue(ArrayUtils.isSameLength(twoArray, twoArray)); } @Test public void testSameLengthLong() { final long[] nullArray = null; final long[] emptyArray = new long[0]; final long[] oneArray = new long[]{0L}; final long[] twoArray = new long[]{0L, 76L}; assertTrue(ArrayUtils.isSameLength(nullArray, nullArray)); assertTrue(ArrayUtils.isSameLength(nullArray, emptyArray)); assertFalse(ArrayUtils.isSameLength(nullArray, oneArray)); assertFalse(ArrayUtils.isSameLength(nullArray, twoArray)); assertTrue(ArrayUtils.isSameLength(emptyArray, nullArray)); assertTrue(ArrayUtils.isSameLength(emptyArray, emptyArray)); assertFalse(ArrayUtils.isSameLength(emptyArray, oneArray)); assertFalse(ArrayUtils.isSameLength(emptyArray, twoArray)); assertFalse(ArrayUtils.isSameLength(oneArray, nullArray)); assertFalse(ArrayUtils.isSameLength(oneArray, emptyArray)); assertTrue(ArrayUtils.isSameLength(oneArray, oneArray)); assertFalse(ArrayUtils.isSameLength(oneArray, twoArray)); assertFalse(ArrayUtils.isSameLength(twoArray, nullArray)); assertFalse(ArrayUtils.isSameLength(twoArray, emptyArray)); assertFalse(ArrayUtils.isSameLength(twoArray, oneArray)); assertTrue(ArrayUtils.isSameLength(twoArray, twoArray)); } @Test public void testSameLengthInt() { final int[] nullArray = null; final int[] emptyArray = new int[0]; final int[] oneArray = new int[]{4}; final int[] twoArray = new int[]{5, 7}; assertTrue(ArrayUtils.isSameLength(nullArray, nullArray)); assertTrue(ArrayUtils.isSameLength(nullArray, emptyArray)); assertFalse(ArrayUtils.isSameLength(nullArray, oneArray)); assertFalse(ArrayUtils.isSameLength(nullArray, twoArray)); assertTrue(ArrayUtils.isSameLength(emptyArray, nullArray)); assertTrue(ArrayUtils.isSameLength(emptyArray, emptyArray)); assertFalse(ArrayUtils.isSameLength(emptyArray, oneArray)); assertFalse(ArrayUtils.isSameLength(emptyArray, twoArray)); assertFalse(ArrayUtils.isSameLength(oneArray, nullArray)); assertFalse(ArrayUtils.isSameLength(oneArray, emptyArray)); assertTrue(ArrayUtils.isSameLength(oneArray, oneArray)); assertFalse(ArrayUtils.isSameLength(oneArray, twoArray)); assertFalse(ArrayUtils.isSameLength(twoArray, nullArray)); assertFalse(ArrayUtils.isSameLength(twoArray, emptyArray)); assertFalse(ArrayUtils.isSameLength(twoArray, oneArray)); assertTrue(ArrayUtils.isSameLength(twoArray, twoArray)); } @Test public void testSameLengthShort() { final short[] nullArray = null; final short[] emptyArray = new short[0]; final short[] oneArray = new short[]{4}; final short[] twoArray = new short[]{6, 8}; assertTrue(ArrayUtils.isSameLength(nullArray, nullArray)); assertTrue(ArrayUtils.isSameLength(nullArray, emptyArray)); assertFalse(ArrayUtils.isSameLength(nullArray, oneArray)); assertFalse(ArrayUtils.isSameLength(nullArray, twoArray)); assertTrue(ArrayUtils.isSameLength(emptyArray, nullArray)); assertTrue(ArrayUtils.isSameLength(emptyArray, emptyArray)); assertFalse(ArrayUtils.isSameLength(emptyArray, oneArray)); assertFalse(ArrayUtils.isSameLength(emptyArray, twoArray)); assertFalse(ArrayUtils.isSameLength(oneArray, nullArray)); assertFalse(ArrayUtils.isSameLength(oneArray, emptyArray)); assertTrue(ArrayUtils.isSameLength(oneArray, oneArray)); assertFalse(ArrayUtils.isSameLength(oneArray, twoArray)); assertFalse(ArrayUtils.isSameLength(twoArray, nullArray)); assertFalse(ArrayUtils.isSameLength(twoArray, emptyArray)); assertFalse(ArrayUtils.isSameLength(twoArray, oneArray)); assertTrue(ArrayUtils.isSameLength(twoArray, twoArray)); } @Test public void testSameLengthChar() { final char[] nullArray = null; final char[] emptyArray = new char[0]; final char[] oneArray = new char[]{'f'}; final char[] twoArray = new char[]{'d', 't'}; assertTrue(ArrayUtils.isSameLength(nullArray, nullArray)); assertTrue(ArrayUtils.isSameLength(nullArray, emptyArray)); assertFalse(ArrayUtils.isSameLength(nullArray, oneArray)); assertFalse(ArrayUtils.isSameLength(nullArray, twoArray)); assertTrue(ArrayUtils.isSameLength(emptyArray, nullArray)); assertTrue(ArrayUtils.isSameLength(emptyArray, emptyArray)); assertFalse(ArrayUtils.isSameLength(emptyArray, oneArray)); assertFalse(ArrayUtils.isSameLength(emptyArray, twoArray)); assertFalse(ArrayUtils.isSameLength(oneArray, nullArray)); assertFalse(ArrayUtils.isSameLength(oneArray, emptyArray)); assertTrue(ArrayUtils.isSameLength(oneArray, oneArray)); assertFalse(ArrayUtils.isSameLength(oneArray, twoArray)); assertFalse(ArrayUtils.isSameLength(twoArray, nullArray)); assertFalse(ArrayUtils.isSameLength(twoArray, emptyArray)); assertFalse(ArrayUtils.isSameLength(twoArray, oneArray)); assertTrue(ArrayUtils.isSameLength(twoArray, twoArray)); } @Test public void testSameLengthByte() { final byte[] nullArray = null; final byte[] emptyArray = new byte[0]; final byte[] oneArray = new byte[]{3}; final byte[] twoArray = new byte[]{4, 6}; assertTrue(ArrayUtils.isSameLength(nullArray, nullArray)); assertTrue(ArrayUtils.isSameLength(nullArray, emptyArray)); assertFalse(ArrayUtils.isSameLength(nullArray, oneArray)); assertFalse(ArrayUtils.isSameLength(nullArray, twoArray)); assertTrue(ArrayUtils.isSameLength(emptyArray, nullArray)); assertTrue(ArrayUtils.isSameLength(emptyArray, emptyArray)); assertFalse(ArrayUtils.isSameLength(emptyArray, oneArray)); assertFalse(ArrayUtils.isSameLength(emptyArray, twoArray)); assertFalse(ArrayUtils.isSameLength(oneArray, nullArray)); assertFalse(ArrayUtils.isSameLength(oneArray, emptyArray)); assertTrue(ArrayUtils.isSameLength(oneArray, oneArray)); assertFalse(ArrayUtils.isSameLength(oneArray, twoArray)); assertFalse(ArrayUtils.isSameLength(twoArray, nullArray)); assertFalse(ArrayUtils.isSameLength(twoArray, emptyArray)); assertFalse(ArrayUtils.isSameLength(twoArray, oneArray)); assertTrue(ArrayUtils.isSameLength(twoArray, twoArray)); } @Test public void testSameLengthDouble() { final double[] nullArray = null; final double[] emptyArray = new double[0]; final double[] oneArray = new double[]{1.3d}; final double[] twoArray = new double[]{4.5d, 6.3d}; assertTrue(ArrayUtils.isSameLength(nullArray, nullArray)); assertTrue(ArrayUtils.isSameLength(nullArray, emptyArray)); assertFalse(ArrayUtils.isSameLength(nullArray, oneArray)); assertFalse(ArrayUtils.isSameLength(nullArray, twoArray)); assertTrue(ArrayUtils.isSameLength(emptyArray, nullArray)); assertTrue(ArrayUtils.isSameLength(emptyArray, emptyArray)); assertFalse(ArrayUtils.isSameLength(emptyArray, oneArray)); assertFalse(ArrayUtils.isSameLength(emptyArray, twoArray)); assertFalse(ArrayUtils.isSameLength(oneArray, nullArray)); assertFalse(ArrayUtils.isSameLength(oneArray, emptyArray)); assertTrue(ArrayUtils.isSameLength(oneArray, oneArray)); assertFalse(ArrayUtils.isSameLength(oneArray, twoArray)); assertFalse(ArrayUtils.isSameLength(twoArray, nullArray)); assertFalse(ArrayUtils.isSameLength(twoArray, emptyArray)); assertFalse(ArrayUtils.isSameLength(twoArray, oneArray)); assertTrue(ArrayUtils.isSameLength(twoArray, twoArray)); } @Test public void testSameLengthFloat() { final float[] nullArray = null; final float[] emptyArray = new float[0]; final float[] oneArray = new float[]{2.5f}; final float[] twoArray = new float[]{6.4f, 5.8f}; assertTrue(ArrayUtils.isSameLength(nullArray, nullArray)); assertTrue(ArrayUtils.isSameLength(nullArray, emptyArray)); assertFalse(ArrayUtils.isSameLength(nullArray, oneArray)); assertFalse(ArrayUtils.isSameLength(nullArray, twoArray)); assertTrue(ArrayUtils.isSameLength(emptyArray, nullArray)); assertTrue(ArrayUtils.isSameLength(emptyArray, emptyArray)); assertFalse(ArrayUtils.isSameLength(emptyArray, oneArray)); assertFalse(ArrayUtils.isSameLength(emptyArray, twoArray)); assertFalse(ArrayUtils.isSameLength(oneArray, nullArray)); assertFalse(ArrayUtils.isSameLength(oneArray, emptyArray)); assertTrue(ArrayUtils.isSameLength(oneArray, oneArray)); assertFalse(ArrayUtils.isSameLength(oneArray, twoArray)); assertFalse(ArrayUtils.isSameLength(twoArray, nullArray)); assertFalse(ArrayUtils.isSameLength(twoArray, emptyArray)); assertFalse(ArrayUtils.isSameLength(twoArray, oneArray)); assertTrue(ArrayUtils.isSameLength(twoArray, twoArray)); } //----------------------------------------------------------------------- @Test public void testSameType() { try { ArrayUtils.isSameType(null, null); fail(); } catch (final IllegalArgumentException ex) { } try { ArrayUtils.isSameType(null, new Object[0]); fail(); } catch (final IllegalArgumentException ex) { } try { ArrayUtils.isSameType(new Object[0], null); fail(); } catch (final IllegalArgumentException ex) { } assertTrue(ArrayUtils.isSameType(new Object[0], new Object[0])); assertFalse(ArrayUtils.isSameType(new String[0], new Object[0])); assertTrue(ArrayUtils.isSameType(new String[0][0], new String[0][0])); assertFalse(ArrayUtils.isSameType(new String[0], new String[0][0])); assertFalse(ArrayUtils.isSameType(new String[0][0], new String[0])); } //----------------------------------------------------------------------- @Test public void testReverse() { final StringBuffer str1 = new StringBuffer("pick"); final String str2 = "a"; final String[] str3 = new String[]{"stick"}; final String str4 = "up"; Object[] array = new Object[]{str1, str2, str3}; ArrayUtils.reverse(array); assertEquals(array[0], str3); assertEquals(array[1], str2); assertEquals(array[2], str1); array = new Object[]{str1, str2, str3, str4}; ArrayUtils.reverse(array); assertEquals(array[0], str4); assertEquals(array[1], str3); assertEquals(array[2], str2); assertEquals(array[3], str1); array = null; ArrayUtils.reverse(array); assertArrayEquals(null, array); } @Test public void testReverseLong() { long[] array = new long[]{1L, 2L, 3L}; ArrayUtils.reverse(array); assertEquals(array[0], 3L); assertEquals(array[1], 2L); assertEquals(array[2], 1L); array = null; ArrayUtils.reverse(array); assertNull(array); } @Test public void testReverseInt() { int[] array = new int[]{1, 2, 3}; ArrayUtils.reverse(array); assertEquals(array[0], 3); assertEquals(array[1], 2); assertEquals(array[2], 1); array = null; ArrayUtils.reverse(array); assertNull(array); } @Test public void testReverseShort() { short[] array = new short[]{1, 2, 3}; ArrayUtils.reverse(array); assertEquals(array[0], 3); assertEquals(array[1], 2); assertEquals(array[2], 1); array = null; ArrayUtils.reverse(array); assertNull(array); } @Test public void testReverseChar() { char[] array = new char[]{'a', 'f', 'C'}; ArrayUtils.reverse(array); assertEquals(array[0], 'C'); assertEquals(array[1], 'f'); assertEquals(array[2], 'a'); array = null; ArrayUtils.reverse(array); assertNull(array); } @Test public void testReverseByte() { byte[] array = new byte[]{2, 3, 4}; ArrayUtils.reverse(array); assertEquals(array[0], 4); assertEquals(array[1], 3); assertEquals(array[2], 2); array = null; ArrayUtils.reverse(array); assertNull(array); } @Test public void testReverseDouble() { double[] array = new double[]{0.3d, 0.4d, 0.5d}; ArrayUtils.reverse(array); assertEquals(array[0], 0.5d, 0.0d); assertEquals(array[1], 0.4d, 0.0d); assertEquals(array[2], 0.3d, 0.0d); array = null; ArrayUtils.reverse(array); assertNull(array); } @Test public void testReverseFloat() { float[] array = new float[]{0.3f, 0.4f, 0.5f}; ArrayUtils.reverse(array); assertEquals(array[0], 0.5f, 0.0f); assertEquals(array[1], 0.4f, 0.0f); assertEquals(array[2], 0.3f, 0.0f); array = null; ArrayUtils.reverse(array); assertNull(array); } @Test public void testReverseBoolean() { boolean[] array = new boolean[]{false, false, true}; ArrayUtils.reverse(array); assertTrue(array[0]); assertFalse(array[1]); assertFalse(array[2]); array = null; ArrayUtils.reverse(array); assertNull(array); } @Test public void testReverseBooleanRange() { boolean[] array = new boolean[]{false, false, true}; // The whole array ArrayUtils.reverse(array, 0, 3); assertTrue(array[0]); assertFalse(array[1]); assertFalse(array[2]); // a range array = new boolean[]{false, false, true}; ArrayUtils.reverse(array, 0, 2); assertFalse(array[0]); assertFalse(array[1]); assertTrue(array[2]); // a range with a negative start array = new boolean[]{false, false, true}; ArrayUtils.reverse(array, -1, 3); assertTrue(array[0]); assertFalse(array[1]); assertFalse(array[2]); // a range with a large stop index array = new boolean[]{false, false, true}; ArrayUtils.reverse(array, -1, array.length + 1000); assertTrue(array[0]); assertFalse(array[1]); assertFalse(array[2]); // null array = null; ArrayUtils.reverse(array, 0, 3); assertNull(array); } @Test public void testReverseByteRange() { byte[] array = new byte[]{1, 2, 3}; // The whole array ArrayUtils.reverse(array, 0, 3); assertEquals(3, array[0]); assertEquals(2, array[1]); assertEquals(1, array[2]); // a range array = new byte[]{1, 2, 3}; ArrayUtils.reverse(array, 0, 2); assertEquals(2, array[0]); assertEquals(1, array[1]); assertEquals(3, array[2]); // a range with a negative start array = new byte[]{1, 2, 3}; ArrayUtils.reverse(array, -1, 3); assertEquals(3, array[0]); assertEquals(2, array[1]); assertEquals(1, array[2]); // a range with a large stop index array = new byte[]{1, 2, 3}; ArrayUtils.reverse(array, -1, array.length + 1000); assertEquals(3, array[0]); assertEquals(2, array[1]); assertEquals(1, array[2]); // null array = null; ArrayUtils.reverse(array, 0, 3); assertNull(array); } @Test public void testReverseCharRange() { char[] array = new char[]{1, 2, 3}; // The whole array ArrayUtils.reverse(array, 0, 3); assertEquals(3, array[0]); assertEquals(2, array[1]); assertEquals(1, array[2]); // a range array = new char[]{1, 2, 3}; ArrayUtils.reverse(array, 0, 2); assertEquals(2, array[0]); assertEquals(1, array[1]); assertEquals(3, array[2]); // a range with a negative start array = new char[]{1, 2, 3}; ArrayUtils.reverse(array, -1, 3); assertEquals(3, array[0]); assertEquals(2, array[1]); assertEquals(1, array[2]); // a range with a large stop index array = new char[]{1, 2, 3}; ArrayUtils.reverse(array, -1, array.length + 1000); assertEquals(3, array[0]); assertEquals(2, array[1]); assertEquals(1, array[2]); // null array = null; ArrayUtils.reverse(array, 0, 3); assertNull(array); } @Test public void testReverseDoubleRange() { double[] array = new double[]{1, 2, 3}; // The whole array ArrayUtils.reverse(array, 0, 3); assertEquals(3, array[0], 0); assertEquals(2, array[1], 0); assertEquals(1, array[2], 0); // a range array = new double[]{1, 2, 3}; ArrayUtils.reverse(array, 0, 2); assertEquals(2, array[0], 0); assertEquals(1, array[1], 0); assertEquals(3, array[2], 0); // a range with a negative start array = new double[]{1, 2, 3}; ArrayUtils.reverse(array, -1, 3); assertEquals(3, array[0], 0); assertEquals(2, array[1], 0); assertEquals(1, array[2], 0); // a range with a large stop index array = new double[]{1, 2, 3}; ArrayUtils.reverse(array, -1, array.length + 1000); assertEquals(3, array[0], 0); assertEquals(2, array[1], 0); assertEquals(1, array[2], 0); // null array = null; ArrayUtils.reverse(array, 0, 3); assertNull(array); } @Test public void testReverseFloatRange() { float[] array = new float[]{1, 2, 3}; // The whole array ArrayUtils.reverse(array, 0, 3); assertEquals(3, array[0], 0); assertEquals(2, array[1], 0); assertEquals(1, array[2], 0); // a range array = new float[]{1, 2, 3}; ArrayUtils.reverse(array, 0, 2); assertEquals(2, array[0], 0); assertEquals(1, array[1], 0); assertEquals(3, array[2], 0); // a range with a negative start array = new float[]{1, 2, 3}; ArrayUtils.reverse(array, -1, 3); assertEquals(3, array[0], 0); assertEquals(2, array[1], 0); assertEquals(1, array[2], 0); // a range with a large stop index array = new float[]{1, 2, 3}; ArrayUtils.reverse(array, -1, array.length + 1000); assertEquals(3, array[0], 0); assertEquals(2, array[1], 0); assertEquals(1, array[2], 0); // null array = null; ArrayUtils.reverse(array, 0, 3); assertNull(array); } @Test public void testReverseIntRange() { int[] array = new int[]{1, 2, 3}; // The whole array ArrayUtils.reverse(array, 0, 3); assertEquals(3, array[0]); assertEquals(2, array[1]); assertEquals(1, array[2]); // a range array = new int[]{1, 2, 3}; ArrayUtils.reverse(array, 0, 2); assertEquals(2, array[0]); assertEquals(1, array[1]); assertEquals(3, array[2]); // a range with a negative start array = new int[]{1, 2, 3}; ArrayUtils.reverse(array, -1, 3); assertEquals(3, array[0]); assertEquals(2, array[1]); assertEquals(1, array[2]); // a range with a large stop index array = new int[]{1, 2, 3}; ArrayUtils.reverse(array, -1, array.length + 1000); assertEquals(3, array[0]); assertEquals(2, array[1]); assertEquals(1, array[2]); // null array = null; ArrayUtils.reverse(array, 0, 3); assertNull(array); } @Test public void testReverseLongRange() { long[] array = new long[]{1, 2, 3}; // The whole array ArrayUtils.reverse(array, 0, 3); assertEquals(3, array[0]); assertEquals(2, array[1]); assertEquals(1, array[2]); // a range array = new long[]{1, 2, 3}; ArrayUtils.reverse(array, 0, 2); assertEquals(2, array[0]); assertEquals(1, array[1]); assertEquals(3, array[2]); // a range with a negative start array = new long[]{1, 2, 3}; ArrayUtils.reverse(array, -1, 3); assertEquals(3, array[0]); assertEquals(2, array[1]); assertEquals(1, array[2]); // a range with a large stop index array = new long[]{1, 2, 3}; ArrayUtils.reverse(array, -1, array.length + 1000); assertEquals(3, array[0]); assertEquals(2, array[1]); assertEquals(1, array[2]); // null array = null; ArrayUtils.reverse(array, 0, 3); assertNull(array); } @Test public void testReverseShortRange() { short[] array = new short[]{1, 2, 3}; // The whole array ArrayUtils.reverse(array, 0, 3); assertEquals(3, array[0]); assertEquals(2, array[1]); assertEquals(1, array[2]); // a range array = new short[]{1, 2, 3}; ArrayUtils.reverse(array, 0, 2); assertEquals(2, array[0]); assertEquals(1, array[1]); assertEquals(3, array[2]); // a range with a negative start array = new short[]{1, 2, 3}; ArrayUtils.reverse(array, -1, 3); assertEquals(3, array[0]); assertEquals(2, array[1]); assertEquals(1, array[2]); // a range with a large stop index array = new short[]{1, 2, 3}; ArrayUtils.reverse(array, -1, array.length + 1000); assertEquals(3, array[0]); assertEquals(2, array[1]); assertEquals(1, array[2]); // null array = null; ArrayUtils.reverse(array, 0, 3); assertNull(array); } @Test public void testReverseObjectRange() { String[] array = new String[]{"1", "2", "3"}; // The whole array ArrayUtils.reverse(array, 0, 3); assertEquals("3", array[0]); assertEquals("2", array[1]); assertEquals("1", array[2]); // a range array = new String[]{"1", "2", "3"}; ArrayUtils.reverse(array, 0, 2); assertEquals("2", array[0]); assertEquals("1", array[1]); assertEquals("3", array[2]); // a range with a negative start array = new String[]{"1", "2", "3"}; ArrayUtils.reverse(array, -1, 3); assertEquals("3", array[0]); assertEquals("2", array[1]); assertEquals("1", array[2]); // a range with a large stop index array = new String[]{"1", "2", "3"}; ArrayUtils.reverse(array, -1, array.length + 1000); assertEquals("3", array[0]); assertEquals("2", array[1]); assertEquals("1", array[2]); // null array = null; ArrayUtils.reverse(array, 0, 3); assertNull(array); } //----------------------------------------------------------------------- @Test public void testSwapChar() { char[] array = new char[]{1, 2, 3}; ArrayUtils.swap(array, 0, 2); assertArrayEquals(new char[]{3, 2, 1}, array); array = new char[]{1, 2, 3}; ArrayUtils.swap(array, 0, 0); assertArrayEquals(new char[]{1, 2, 3}, array); array = new char[]{1, 2, 3}; ArrayUtils.swap(array, 1, 0); assertArrayEquals(new char[]{2, 1, 3}, array); } @Test public void testSwapCharRange() { char[] array = new char[]{1, 2, 3, 4}; ArrayUtils.swap(array, 0, 2, 2); assertEquals(3, array[0]); assertEquals(4, array[1]); assertEquals(1, array[2]); assertEquals(2, array[3]); array = new char[]{1, 2, 3}; ArrayUtils.swap(array, 0, 3); assertEquals(1, array[0]); assertEquals(2, array[1]); assertEquals(3, array[2]); array = new char[]{1, 2, 3}; ArrayUtils.swap(array, 0, 2, 2); assertEquals(3, array[0]); assertEquals(2, array[1]); assertEquals(1, array[2]); array = new char[]{1, 2, 3}; ArrayUtils.swap(array, -1, 2, 2); assertEquals(3, array[0]); assertEquals(2, array[1]); assertEquals(1, array[2]); array = new char[]{1, 2, 3}; ArrayUtils.swap(array, 0, -1, 2); assertEquals(1, array[0]); assertEquals(2, array[1]); assertEquals(3, array[2]); array = new char[]{1, 2, 3}; ArrayUtils.swap(array, -1, -1, 2); assertEquals(1, array[0]); assertEquals(2, array[1]); assertEquals(3, array[2]); } @Test public void testSwapByte() { final byte[] array = new byte[]{1, 2, 3}; ArrayUtils.swap(array, 0, 2); assertEquals(3, array[0]); assertEquals(2, array[1]); assertEquals(1, array[2]); } @Test public void testSwapNullByteArray() { final byte[] array = null; ArrayUtils.swap(array, 0, 2); assertNull(array); } @Test public void testSwapEmptyByteArray() { final byte[] array = new byte[0]; ArrayUtils.swap(array, 0, 2); assertEquals(0, array.length); } @Test public void testSwapByteRange() { byte[] array = new byte[]{1, 2, 3, 4}; ArrayUtils.swap(array, 0, 2, 2); assertEquals(3, array[0]); assertEquals(4, array[1]); assertEquals(1, array[2]); assertEquals(2, array[3]); array = new byte[]{1, 2, 3}; ArrayUtils.swap(array, 0, 3); assertEquals(1, array[0]); assertEquals(2, array[1]); assertEquals(3, array[2]); array = new byte[]{1, 2, 3}; ArrayUtils.swap(array, 0, 2, 2); assertEquals(3, array[0]); assertEquals(2, array[1]); assertEquals(1, array[2]); array = new byte[]{1, 2, 3}; ArrayUtils.swap(array, -1, 2, 2); assertEquals(3, array[0]); assertEquals(2, array[1]); assertEquals(1, array[2]); array = new byte[]{1, 2, 3}; ArrayUtils.swap(array, 0, -1, 2); assertEquals(1, array[0]); assertEquals(2, array[1]); assertEquals(3, array[2]); array = new byte[]{1, 2, 3}; ArrayUtils.swap(array, -1, -1, 2); assertEquals(1, array[0]); assertEquals(2, array[1]); assertEquals(3, array[2]); } @Test public void testSwapFloat() { final float[] array = new float[]{1, 2, 3}; ArrayUtils.swap(array, 0, 2); assertEquals(3, array[0], 0); assertEquals(2, array[1], 0); assertEquals(1, array[2], 0); } @Test public void testSwapNullFloatArray() { final float[] array = null; ArrayUtils.swap(array, 0, 2); assertNull(array); } @Test public void testSwapEmptyFloatArray() { final float[] array = new float[0]; ArrayUtils.swap(array, 0, 2); assertEquals(0, array.length); } @Test public void testSwapFloatRange() { float[] array = new float[]{1, 2, 3, 4}; ArrayUtils.swap(array, 0, 2, 2); assertEquals(3, array[0], 0); assertEquals(4, array[1], 0); assertEquals(1, array[2], 0); assertEquals(2, array[3], 0); array = new float[]{1, 2, 3}; ArrayUtils.swap(array, 0, 3); assertEquals(1, array[0], 0); assertEquals(2, array[1], 0); assertEquals(3, array[2], 0); array = new float[]{1, 2, 3}; ArrayUtils.swap(array, 0, 2, 2); assertEquals(3, array[0], 0); assertEquals(2, array[1], 0); assertEquals(1, array[2], 0); array = new float[]{1, 2, 3}; ArrayUtils.swap(array, -1, 2, 2); assertEquals(3, array[0], 0); assertEquals(2, array[1], 0); assertEquals(1, array[2], 0); array = new float[]{1, 2, 3}; ArrayUtils.swap(array, 0, -1, 2); assertEquals(1, array[0], 0); assertEquals(2, array[1], 0); assertEquals(3, array[2], 0); array = new float[]{1, 2, 3}; ArrayUtils.swap(array, -1, -1, 2); assertEquals(1, array[0], 0); assertEquals(2, array[1], 0); assertEquals(3, array[2], 0); } @Test public void testSwapDouble() { final double[] array = new double[]{1, 2, 3}; ArrayUtils.swap(array, 0, 2); assertEquals(3, array[0], 0); assertEquals(2, array[1], 0); assertEquals(1, array[2], 0); } @Test public void testSwapNullDoubleArray() { final double[] array = null; ArrayUtils.swap(array, 0, 2); assertNull(array); } @Test public void testSwapEmptyDoubleArray() { final double[] array = new double[0]; ArrayUtils.swap(array, 0, 2); assertEquals(0, array.length); } @Test public void testSwapDoubleRange() { double[] array = new double[]{1, 2, 3, 4}; ArrayUtils.swap(array, 0, 2, 2); assertEquals(3, array[0], 0); assertEquals(4, array[1], 0); assertEquals(1, array[2], 0); assertEquals(2, array[3], 0); array = new double[]{1, 2, 3}; ArrayUtils.swap(array, 0, 3); assertEquals(1, array[0], 0); assertEquals(2, array[1], 0); assertEquals(3, array[2], 0); array = new double[]{1, 2, 3}; ArrayUtils.swap(array, 0, 2, 2); assertEquals(3, array[0], 0); assertEquals(2, array[1], 0); assertEquals(1, array[2], 0); array = new double[]{1, 2, 3}; ArrayUtils.swap(array, -1, 2, 2); assertEquals(3, array[0], 0); assertEquals(2, array[1], 0); assertEquals(1, array[2], 0); array = new double[]{1, 2, 3}; ArrayUtils.swap(array, 0, -1, 2); assertEquals(1, array[0], 0); assertEquals(2, array[1], 0); assertEquals(3, array[2], 0); array = new double[]{1, 2, 3}; ArrayUtils.swap(array, -1, -1, 2); assertEquals(1, array[0], 0); assertEquals(2, array[1], 0); assertEquals(3, array[2], 0); } @Test public void testSwapInt() { final int[] array = new int[]{1, 2, 3}; ArrayUtils.swap(array, 0, 2); assertEquals(3, array[0]); assertEquals(2, array[1]); assertEquals(1, array[2]); } @Test public void testSwapNullIntArray() { final int[] array = null; ArrayUtils.swap(array, 0, 2); assertNull(array); } @Test public void testSwapEmptyIntArray() { final int[] array = new int[0]; ArrayUtils.swap(array, 0, 2); assertEquals(0, array.length); } @Test public void testSwapIntRange() { int[] array = new int[]{1, 2, 3, 4}; ArrayUtils.swap(array, 0, 2, 2); assertEquals(3, array[0]); assertEquals(4, array[1]); assertEquals(1, array[2]); assertEquals(2, array[3]); array = new int[]{1, 2, 3}; ArrayUtils.swap(array, 3, 0); assertEquals(1, array[0]); assertEquals(2, array[1]); assertEquals(3, array[2]); array = new int[]{1, 2, 3}; ArrayUtils.swap(array, 0, 2, 2); assertEquals(3, array[0]); assertEquals(2, array[1]); assertEquals(1, array[2]); array = new int[]{1, 2, 3}; ArrayUtils.swap(array, -1, 2, 2); assertEquals(3, array[0]); assertEquals(2, array[1]); assertEquals(1, array[2]); array = new int[]{1, 2, 3}; ArrayUtils.swap(array, 0, -1, 2); assertEquals(1, array[0]); assertEquals(2, array[1]); assertEquals(3, array[2]); array = new int[]{1, 2, 3}; ArrayUtils.swap(array, -1, -1, 2); assertEquals(1, array[0]); assertEquals(2, array[1]); assertEquals(3, array[2]); } @Test public void testSwapIntExchangedOffsets() { int[] array; array = new int[]{1, 2, 3}; ArrayUtils.swap(array, 0, 1, 2); assertArrayEquals(new int[]{2, 3, 1}, array); array = new int[]{1, 2, 3}; ArrayUtils.swap(array, 1, 0, 2); assertArrayEquals(new int[]{2, 3, 1}, array); } @Test public void testSwapShort() { final short[] array = new short[]{1, 2, 3}; ArrayUtils.swap(array, 0, 2); assertEquals(3, array[0]); assertEquals(2, array[1]); assertEquals(1, array[2]); } @Test public void testSwapNullShortArray() { final short[] array = null; ArrayUtils.swap(array, 0, 2); assertNull(array); } @Test public void testSwapEmptyShortArray() { final short[] array = new short[0]; ArrayUtils.swap(array, 0, 2); assertEquals(0, array.length); } @Test public void testSwapShortRange() { short[] array = new short[]{1, 2, 3, 4}; ArrayUtils.swap(array, 0, 2, 2); assertEquals(3, array[0]); assertEquals(4, array[1]); assertEquals(1, array[2]); assertEquals(2, array[3]); array = new short[]{1, 2, 3}; ArrayUtils.swap(array, 3, 0); assertEquals(1, array[0]); assertEquals(2, array[1]); assertEquals(3, array[2]); array = new short[]{1, 2, 3}; ArrayUtils.swap(array, 0, 2, 2); assertEquals(3, array[0]); assertEquals(2, array[1]); assertEquals(1, array[2]); array = new short[]{1, 2, 3}; ArrayUtils.swap(array, -1, 2, 2); assertEquals(3, array[0]); assertEquals(2, array[1]); assertEquals(1, array[2]); array = new short[]{1, 2, 3}; ArrayUtils.swap(array, 0, -1, 2); assertEquals(1, array[0]); assertEquals(2, array[1]); assertEquals(3, array[2]); array = new short[]{1, 2, 3}; ArrayUtils.swap(array, -1, -1, 2); assertEquals(1, array[0]); assertEquals(2, array[1]); assertEquals(3, array[2]); } @Test public void testSwapNullCharArray() { final char[] array = null; ArrayUtils.swap(array, 0, 2); assertNull(array); } @Test public void testSwapEmptyCharArray() { final char[] array = new char[0]; ArrayUtils.swap(array, 0, 2); assertEquals(0, array.length); } @Test public void testSwapLong() { final long[] array = new long[]{1, 2, 3}; ArrayUtils.swap(array, 0, 2); assertEquals(3, array[0]); assertEquals(2, array[1]); assertEquals(1, array[2]); } @Test public void testSwapNullLongArray() { final long[] array = null; ArrayUtils.swap(array, 0, 2); assertNull(array); } @Test public void testSwapEmptyLongArray() { final long[] array = new long[0]; ArrayUtils.swap(array, 0, 2); assertEquals(0, array.length); } @Test public void testSwapLongRange() { long[] array = new long[]{1, 2, 3, 4}; ArrayUtils.swap(array, 0, 2, 2); assertEquals(3, array[0]); assertEquals(4, array[1]); assertEquals(1, array[2]); assertEquals(2, array[3]); array = new long[]{1, 2, 3}; ArrayUtils.swap(array, 0, 3); assertEquals(1, array[0]); assertEquals(2, array[1]); assertEquals(3, array[2]); array = new long[]{1, 2, 3}; ArrayUtils.swap(array, 0, 2, 2); assertEquals(3, array[0]); assertEquals(2, array[1]); assertEquals(1, array[2]); array = new long[]{1, 2, 3}; ArrayUtils.swap(array, -1, 2, 2); assertEquals(3, array[0]); assertEquals(2, array[1]); assertEquals(1, array[2]); array = new long[]{1, 2, 3}; ArrayUtils.swap(array, 0, -1, 2); assertEquals(1, array[0]); assertEquals(2, array[1]); assertEquals(3, array[2]); array = new long[]{1, 2, 3}; ArrayUtils.swap(array, -1, -1, 2); assertEquals(1, array[0]); assertEquals(2, array[1]); assertEquals(3, array[2]); } @Test public void testSwapBoolean() { final boolean[] array = new boolean[]{true, false, false}; ArrayUtils.swap(array, 0, 2); assertFalse(array[0]); assertFalse(array[1]); assertTrue(array[2]); } @Test public void testSwapNullBooleanArray() { final boolean[] array = null; ArrayUtils.swap(array, 0, 2); assertNull(array); } @Test public void testSwapEmptyBooleanArray() { final boolean[] array = new boolean[0]; ArrayUtils.swap(array, 0, 2); assertEquals(0, array.length); } @Test public void testSwapBooleanRange() { boolean[] array = new boolean[]{false, false, true, true}; ArrayUtils.swap(array, 0, 2, 2); assertTrue(array[0]); assertTrue(array[1]); assertFalse(array[2]); assertFalse(array[3]); array = new boolean[]{false, true, false}; ArrayUtils.swap(array, 0, 3); assertFalse(array[0]); assertTrue(array[1]); assertFalse(array[2]); array = new boolean[]{true, true, false}; ArrayUtils.swap(array, 0, 2, 2); assertFalse(array[0]); assertTrue(array[1]); assertTrue(array[2]); array = new boolean[]{true, true, false}; ArrayUtils.swap(array, -1, 2, 2); assertFalse(array[0]); assertTrue(array[1]); assertTrue(array[2]); array = new boolean[]{true, true, false}; ArrayUtils.swap(array, 0, -1, 2); assertTrue(array[0]); assertTrue(array[1]); assertFalse(array[2]); array = new boolean[]{true, true, false}; ArrayUtils.swap(array, -1, -1, 2); assertTrue(array[0]); assertTrue(array[1]); assertFalse(array[2]); } @Test public void testSwapObject() { final String[] array = new String[]{"1", "2", "3"}; ArrayUtils.swap(array, 0, 2); assertEquals("3", array[0]); assertEquals("2", array[1]); assertEquals("1", array[2]); } @Test public void testSwapNullObjectArray() { final String[] array = null; ArrayUtils.swap(array, 0, 2); assertNull(array); } @Test public void testSwapEmptyObjectArray() { final String[] array = new String[0]; ArrayUtils.swap(array, 0, 2); assertEquals(0, array.length); } @Test public void testSwapObjectRange() { String[] array = new String[]{"1", "2", "3", "4"}; ArrayUtils.swap(array, 0, 2, 2); assertEquals("3", array[0]); assertEquals("4", array[1]); assertEquals("1", array[2]); assertEquals("2", array[3]); array = new String[]{"1", "2", "3", "4"}; ArrayUtils.swap(array, -1, 2, 3); assertEquals("3", array[0]); assertEquals("4", array[1]); assertEquals("1", array[2]); assertEquals("2", array[3]); array = new String[]{"1", "2", "3", "4", "5"}; ArrayUtils.swap(array, -3, 2, 3); assertEquals("3", array[0]); assertEquals("4", array[1]); assertEquals("5", array[2]); assertEquals("2", array[3]); assertEquals("1", array[4]); array = new String[]{"1", "2", "3", "4", "5"}; ArrayUtils.swap(array, 2, -2, 3); assertEquals("3", array[0]); assertEquals("4", array[1]); assertEquals("5", array[2]); assertEquals("2", array[3]); assertEquals("1", array[4]); array = new String[0]; ArrayUtils.swap(array, 0, 2, 2); assertEquals(0, array.length); array = null; ArrayUtils.swap(array, 0, 2, 2); assertNull(array); } //----------------------------------------------------------------------- @Test public void testShiftDouble() { final double[] array = new double[]{1, 2, 3, 4}; ArrayUtils.shift(array, 1); assertEquals(4, array[0], 0); assertEquals(1, array[1], 0); assertEquals(2, array[2], 0); assertEquals(3, array[3], 0); ArrayUtils.shift(array, -1); assertEquals(1, array[0], 0); assertEquals(2, array[1], 0); assertEquals(3, array[2], 0); assertEquals(4, array[3], 0); ArrayUtils.shift(array, 5); assertEquals(4, array[0], 0); assertEquals(1, array[1], 0); assertEquals(2, array[2], 0); assertEquals(3, array[3], 0); ArrayUtils.shift(array, -3); assertEquals(3, array[0], 0); assertEquals(4, array[1], 0); assertEquals(1, array[2], 0); assertEquals(2, array[3], 0); } @Test public void testShiftRangeDouble() { final double[] array = new double[]{1, 2, 3, 4, 5}; ArrayUtils.shift(array, 1, 3, 1); assertEquals(1, array[0], 0); assertEquals(3, array[1], 0); assertEquals(2, array[2], 0); assertEquals(4, array[3], 0); assertEquals(5, array[4], 0); ArrayUtils.shift(array, 1, 4, 2); assertEquals(1, array[0], 0); assertEquals(2, array[1], 0); assertEquals(4, array[2], 0); assertEquals(3, array[3], 0); assertEquals(5, array[4], 0); } @Test public void testShiftRangeNoElemDouble() { final double[] array = new double[]{1, 2, 3, 4}; ArrayUtils.shift(array, 1, 1, 1); assertEquals(1, array[0], 0); assertEquals(2, array[1], 0); assertEquals(3, array[2], 0); assertEquals(4, array[3], 0); } @Test public void testShiftRangeNullDouble() { final double[] array = null; ArrayUtils.shift(array, 1, 1, 1); assertNull(array); } @Test public void testShiftNullDouble() { final double[] array = null; ArrayUtils.shift(array, 1); assertNull(array); } @Test public void testShiftAllDouble() { final double[] array = new double[]{1, 2, 3, 4}; ArrayUtils.shift(array, 4); assertEquals(1, array[0], 0); assertEquals(2, array[1], 0); assertEquals(3, array[2], 0); assertEquals(4, array[3], 0); ArrayUtils.shift(array, -4); assertEquals(1, array[0], 0); assertEquals(2, array[1], 0); assertEquals(3, array[2], 0); assertEquals(4, array[3], 0); } @Test public void testShiftFloat() { final float[] array = new float[]{1, 2, 3, 4}; ArrayUtils.shift(array, 1); assertEquals(4, array[0], 0); assertEquals(1, array[1], 0); assertEquals(2, array[2], 0); assertEquals(3, array[3], 0); ArrayUtils.shift(array, -1); assertEquals(1, array[0], 0); assertEquals(2, array[1], 0); assertEquals(3, array[2], 0); assertEquals(4, array[3], 0); ArrayUtils.shift(array, 5); assertEquals(4, array[0], 0); assertEquals(1, array[1], 0); assertEquals(2, array[2], 0); assertEquals(3, array[3], 0); ArrayUtils.shift(array, -3); assertEquals(3, array[0], 0); assertEquals(4, array[1], 0); assertEquals(1, array[2], 0); assertEquals(2, array[3], 0); } @Test public void testShiftRangeFloat() { final float[] array = new float[]{1, 2, 3, 4, 5}; ArrayUtils.shift(array, 1, 3, 1); assertEquals(1, array[0], 0); assertEquals(3, array[1], 0); assertEquals(2, array[2], 0); assertEquals(4, array[3], 0); assertEquals(5, array[4], 0); ArrayUtils.shift(array, 1, 4, 2); assertEquals(1, array[0], 0); assertEquals(2, array[1], 0); assertEquals(4, array[2], 0); assertEquals(3, array[3], 0); assertEquals(5, array[4], 0); } @Test public void testShiftRangeNoElemFloat() { final float[] array = new float[]{1, 2, 3, 4}; ArrayUtils.shift(array, 1, 1, 1); assertEquals(1, array[0], 0); assertEquals(2, array[1], 0); assertEquals(3, array[2], 0); assertEquals(4, array[3], 0); } @Test public void testShiftRangeNullFloat() { final float[] array = null; ArrayUtils.shift(array, 1, 1, 1); assertNull(array); } @Test public void testShiftNullFloat() { final float[] array = null; ArrayUtils.shift(array, 1); assertNull(array); } @Test public void testShiftAllFloat() { final float[] array = new float[]{1, 2, 3, 4}; ArrayUtils.shift(array, 4); assertEquals(1, array[0], 0); assertEquals(2, array[1], 0); assertEquals(3, array[2], 0); assertEquals(4, array[3], 0); ArrayUtils.shift(array, -4); assertEquals(1, array[0], 0); assertEquals(2, array[1], 0); assertEquals(3, array[2], 0); assertEquals(4, array[3], 0); } @Test public void testShiftShort() { short[] array = new short[]{1, 2, 3, 4}; ArrayUtils.shift(array, 1); assertEquals(4, array[0]); assertEquals(1, array[1]); assertEquals(2, array[2]); assertEquals(3, array[3]); ArrayUtils.shift(array, -1); assertEquals(1, array[0]); assertEquals(2, array[1]); assertEquals(3, array[2]); assertEquals(4, array[3]); ArrayUtils.shift(array, 5); assertEquals(4, array[0]); assertEquals(1, array[1]); assertEquals(2, array[2]); assertEquals(3, array[3]); ArrayUtils.shift(array, -3); assertEquals(3, array[0]); assertEquals(4, array[1]); assertEquals(1, array[2]); assertEquals(2, array[3]); array = new short[]{1, 2, 3, 4, 5}; ArrayUtils.shift(array, 2); assertEquals(4, array[0]); assertEquals(5, array[1]); assertEquals(1, array[2]); assertEquals(2, array[3]); assertEquals(3, array[4]); } @Test public void testShiftNullShort() { final short[] array = null; ArrayUtils.shift(array, 1); assertNull(array); } @Test public void testShiftRangeShort() { final short[] array = new short[]{1, 2, 3, 4, 5}; ArrayUtils.shift(array, 1, 3, 1); assertEquals(1, array[0]); assertEquals(3, array[1]); assertEquals(2, array[2]); assertEquals(4, array[3]); assertEquals(5, array[4]); ArrayUtils.shift(array, 1, 4, 2); assertEquals(1, array[0]); assertEquals(2, array[1]); assertEquals(4, array[2]); assertEquals(3, array[3]); assertEquals(5, array[4]); } @Test public void testShiftRangeNoElemShort() { final short[] array = new short[]{1, 2, 3, 4}; ArrayUtils.shift(array, 1, 1, 1); assertEquals(1, array[0]); assertEquals(2, array[1]); assertEquals(3, array[2]); assertEquals(4, array[3]); } @Test public void testShiftRangeNullShort() { final short[] array = null; ArrayUtils.shift(array, 1, 1, 1); assertNull(array); } @Test public void testShiftAllShort() { final short[] array = new short[]{1, 2, 3, 4}; ArrayUtils.shift(array, 4); assertEquals(1, array[0]); assertEquals(2, array[1]); assertEquals(3, array[2]); assertEquals(4, array[3]); ArrayUtils.shift(array, -4); assertEquals(1, array[0]); assertEquals(2, array[1]); assertEquals(3, array[2]); assertEquals(4, array[3]); } @Test public void testShiftByte() { final byte[] array = new byte[]{1, 2, 3, 4}; ArrayUtils.shift(array, 1); assertEquals(4, array[0]); assertEquals(1, array[1]); assertEquals(2, array[2]); assertEquals(3, array[3]); ArrayUtils.shift(array, -1); assertEquals(1, array[0]); assertEquals(2, array[1]); assertEquals(3, array[2]); assertEquals(4, array[3]); ArrayUtils.shift(array, 5); assertEquals(4, array[0]); assertEquals(1, array[1]); assertEquals(2, array[2]); assertEquals(3, array[3]); ArrayUtils.shift(array, -3); assertEquals(3, array[0]); assertEquals(4, array[1]); assertEquals(1, array[2]); assertEquals(2, array[3]); } @Test public void testShiftRangeByte() { final byte[] array = new byte[]{1, 2, 3, 4, 5}; ArrayUtils.shift(array, 1, 3, 1); assertEquals(1, array[0]); assertEquals(3, array[1]); assertEquals(2, array[2]); assertEquals(4, array[3]); assertEquals(5, array[4]); ArrayUtils.shift(array, 1, 4, 2); assertEquals(1, array[0]); assertEquals(2, array[1]); assertEquals(4, array[2]); assertEquals(3, array[3]); assertEquals(5, array[4]); } @Test public void testShiftRangeNoElemByte() { final byte[] array = new byte[]{1, 2, 3, 4}; ArrayUtils.shift(array, 1, 1, 1); assertEquals(1, array[0]); assertEquals(2, array[1]); assertEquals(3, array[2]); assertEquals(4, array[3]); } @Test public void testShiftRangeNullByte() { final byte[] array = null; ArrayUtils.shift(array, 1, 1, 1); assertNull(array); } @Test public void testShiftAllByte() { final byte[] array = new byte[]{1, 2, 3, 4}; ArrayUtils.shift(array, 4); assertEquals(1, array[0]); assertEquals(2, array[1]); assertEquals(3, array[2]); assertEquals(4, array[3]); ArrayUtils.shift(array, -4); assertEquals(1, array[0]); assertEquals(2, array[1]); assertEquals(3, array[2]); assertEquals(4, array[3]); } @Test public void testShiftChar() { final char[] array = new char[]{1, 2, 3, 4}; ArrayUtils.shift(array, 1); assertEquals(4, array[0]); assertEquals(1, array[1]); assertEquals(2, array[2]); assertEquals(3, array[3]); ArrayUtils.shift(array, -1); assertEquals(1, array[0]); assertEquals(2, array[1]); assertEquals(3, array[2]); assertEquals(4, array[3]); ArrayUtils.shift(array, 5); assertEquals(4, array[0]); assertEquals(1, array[1]); assertEquals(2, array[2]); assertEquals(3, array[3]); ArrayUtils.shift(array, -3); assertEquals(3, array[0]); assertEquals(4, array[1]); assertEquals(1, array[2]); assertEquals(2, array[3]); } @Test public void testShiftRangeChar() { final char[] array = new char[]{1, 2, 3, 4, 5}; ArrayUtils.shift(array, 1, 3, 1); assertEquals(1, array[0]); assertEquals(3, array[1]); assertEquals(2, array[2]); assertEquals(4, array[3]); assertEquals(5, array[4]); ArrayUtils.shift(array, 1, 4, 2); assertEquals(1, array[0]); assertEquals(2, array[1]); assertEquals(4, array[2]); assertEquals(3, array[3]); assertEquals(5, array[4]); } @Test public void testShiftRangeNoElemChar() { final char[] array = new char[]{1, 2, 3, 4}; ArrayUtils.shift(array, 1, 1, 1); assertEquals(1, array[0]); assertEquals(2, array[1]); assertEquals(3, array[2]); assertEquals(4, array[3]); } @Test public void testShiftRangeNullChar() { final char[] array = null; ArrayUtils.shift(array, 1, 1, 1); assertNull(array); } @Test public void testShiftAllChar() { final char[] array = new char[]{1, 2, 3, 4}; ArrayUtils.shift(array, 4); assertEquals(1, array[0]); assertEquals(2, array[1]); assertEquals(3, array[2]); assertEquals(4, array[3]); ArrayUtils.shift(array, -4); assertEquals(1, array[0]); assertEquals(2, array[1]); assertEquals(3, array[2]); assertEquals(4, array[3]); } @Test public void testShiftLong() { final long[] array = new long[]{1, 2, 3, 4}; ArrayUtils.shift(array, 1); assertEquals(4, array[0]); assertEquals(1, array[1]); assertEquals(2, array[2]); assertEquals(3, array[3]); ArrayUtils.shift(array, -1); assertEquals(1, array[0]); assertEquals(2, array[1]); assertEquals(3, array[2]); assertEquals(4, array[3]); ArrayUtils.shift(array, 5); assertEquals(4, array[0]); assertEquals(1, array[1]); assertEquals(2, array[2]); assertEquals(3, array[3]); ArrayUtils.shift(array, -3); assertEquals(3, array[0]); assertEquals(4, array[1]); assertEquals(1, array[2]); assertEquals(2, array[3]); } @Test public void testShiftRangeLong() { final long[] array = new long[]{1, 2, 3, 4, 5}; ArrayUtils.shift(array, 1, 3, 1); assertEquals(1, array[0]); assertEquals(3, array[1]); assertEquals(2, array[2]); assertEquals(4, array[3]); assertEquals(5, array[4]); ArrayUtils.shift(array, 1, 4, 2); assertEquals(1, array[0]); assertEquals(2, array[1]); assertEquals(4, array[2]); assertEquals(3, array[3]); assertEquals(5, array[4]); } @Test public void testShiftRangeNoElemLong() { final long[] array = new long[]{1, 2, 3, 4}; ArrayUtils.shift(array, 1, 1, 1); assertEquals(1, array[0]); assertEquals(2, array[1]); assertEquals(3, array[2]); assertEquals(4, array[3]); } @Test public void testShiftRangeNullLong() { final long[] array = null; ArrayUtils.shift(array, 1, 1, 1); assertNull(array); } @Test public void testShiftNullLong() { final long[] array = null; ArrayUtils.shift(array, 1); assertNull(array); } @Test public void testShiftAllLong() { final long[] array = new long[]{1, 2, 3, 4}; ArrayUtils.shift(array, 4); assertEquals(1, array[0]); assertEquals(2, array[1]); assertEquals(3, array[2]); assertEquals(4, array[3]); ArrayUtils.shift(array, -4); assertEquals(1, array[0]); assertEquals(2, array[1]); assertEquals(3, array[2]); assertEquals(4, array[3]); } @Test public void testShiftInt() { final int[] array = new int[]{1, 2, 3, 4}; ArrayUtils.shift(array, 1); assertEquals(4, array[0]); assertEquals(1, array[1]); assertEquals(2, array[2]); assertEquals(3, array[3]); ArrayUtils.shift(array, -1); assertEquals(1, array[0]); assertEquals(2, array[1]); assertEquals(3, array[2]); assertEquals(4, array[3]); ArrayUtils.shift(array, 5); assertEquals(4, array[0]); assertEquals(1, array[1]); assertEquals(2, array[2]); assertEquals(3, array[3]); ArrayUtils.shift(array, -3); assertEquals(3, array[0]); assertEquals(4, array[1]); assertEquals(1, array[2]); assertEquals(2, array[3]); } @Test public void testShiftNullInt() { final int[] array = null; ArrayUtils.shift(array, 1); assertNull(array); } @Test public void testShiftRangeInt() { final int[] array = new int[]{1, 2, 3, 4, 5}; ArrayUtils.shift(array, 1, 3, 1); assertEquals(1, array[0]); assertEquals(3, array[1]); assertEquals(2, array[2]); assertEquals(4, array[3]); assertEquals(5, array[4]); ArrayUtils.shift(array, 1, 4, 2); assertEquals(1, array[0]); assertEquals(2, array[1]); assertEquals(4, array[2]); assertEquals(3, array[3]); assertEquals(5, array[4]); } @Test public void testShiftRangeNoElemInt() { final int[] array = new int[]{1, 2, 3, 4}; ArrayUtils.shift(array, 1, 1, 1); assertEquals(1, array[0]); assertEquals(2, array[1]); assertEquals(3, array[2]); assertEquals(4, array[3]); } @Test public void testShiftRangeNullInt() { final int[] array = null; ArrayUtils.shift(array, 1, 1, 1); assertNull(array); } @Test public void testShiftAllInt() { final int[] array = new int[]{1, 2, 3, 4}; ArrayUtils.shift(array, 4); assertEquals(1, array[0]); assertEquals(2, array[1]); assertEquals(3, array[2]); assertEquals(4, array[3]); ArrayUtils.shift(array, -4); assertEquals(1, array[0]); assertEquals(2, array[1]); assertEquals(3, array[2]); assertEquals(4, array[3]); } @Test public void testShiftObject() { final String[] array = new String[]{"1", "2", "3", "4"}; ArrayUtils.shift(array, 1); assertEquals("4", array[0]); assertEquals("1", array[1]); assertEquals("2", array[2]); assertEquals("3", array[3]); ArrayUtils.shift(array, -1); assertEquals("1", array[0]); assertEquals("2", array[1]); assertEquals("3", array[2]); assertEquals("4", array[3]); ArrayUtils.shift(array, 5); assertEquals("4", array[0]); assertEquals("1", array[1]); assertEquals("2", array[2]); assertEquals("3", array[3]); ArrayUtils.shift(array, -3); assertEquals("3", array[0]); assertEquals("4", array[1]); assertEquals("1", array[2]); assertEquals("2", array[3]); } @Test public void testShiftNullObject() { final String[] array = null; ArrayUtils.shift(array, 1); assertNull(array); } @Test public void testShiftRangeObject() { final String[] array = new String[]{"1", "2", "3", "4", "5"}; ArrayUtils.shift(array, 1, 3, 1); assertEquals("1", array[0]); assertEquals("3", array[1]); assertEquals("2", array[2]); assertEquals("4", array[3]); assertEquals("5", array[4]); ArrayUtils.shift(array, 1, 4, 2); assertEquals("1", array[0]); assertEquals("2", array[1]); assertEquals("4", array[2]); assertEquals("3", array[3]); assertEquals("5", array[4]); } @Test public void testShiftRangeNoElemObject() { final String[] array = new String[]{"1", "2", "3", "4"}; ArrayUtils.shift(array, 1, 1, 1); assertEquals("1", array[0]); assertEquals("2", array[1]); assertEquals("3", array[2]); assertEquals("4", array[3]); } @Test public void testShiftRangeNullObject() { final String[] array = null; ArrayUtils.shift(array, 1, 1, 1); assertNull(array); } @Test public void testShiftAllObject() { final String[] array = new String[]{"1", "2", "3", "4"}; ArrayUtils.shift(array, 4); assertEquals("1", array[0]); assertEquals("2", array[1]); assertEquals("3", array[2]); assertEquals("4", array[3]); ArrayUtils.shift(array, -4); assertEquals("1", array[0]); assertEquals("2", array[1]); assertEquals("3", array[2]); assertEquals("4", array[3]); } @Test public void testShiftBoolean() { final boolean[] array = new boolean[]{true, true, false, false}; ArrayUtils.shift(array, 1); assertFalse(array[0]); assertTrue(array[1]); assertTrue(array[2]); assertFalse(array[3]); ArrayUtils.shift(array, -1); assertTrue(array[0]); assertTrue(array[1]); assertFalse(array[2]); assertFalse(array[3]); ArrayUtils.shift(array, 5); assertFalse(array[0]); assertTrue(array[1]); assertTrue(array[2]); assertFalse(array[3]); ArrayUtils.shift(array, -3); assertFalse(array[0]); assertFalse(array[1]); assertTrue(array[2]); assertTrue(array[3]); } @Test public void testShiftNullBoolean() { final boolean[] array = null; ArrayUtils.shift(array, 1); assertNull(array); } //----------------------------------------------------------------------- @Test public void testIndexOf() { final Object[] array = new Object[]{"0", "1", "2", "3", null, "0"}; assertEquals(-1, ArrayUtils.indexOf(null, null)); assertEquals(-1, ArrayUtils.indexOf(null, "0")); assertEquals(-1, ArrayUtils.indexOf(new Object[0], "0")); assertEquals(0, ArrayUtils.indexOf(array, "0")); assertEquals(1, ArrayUtils.indexOf(array, "1")); assertEquals(2, ArrayUtils.indexOf(array, "2")); assertEquals(3, ArrayUtils.indexOf(array, "3")); assertEquals(4, ArrayUtils.indexOf(array, null)); assertEquals(-1, ArrayUtils.indexOf(array, "notInArray")); } @Test public void testIndexOfWithStartIndex() { final Object[] array = new Object[]{"0", "1", "2", "3", null, "0"}; assertEquals(-1, ArrayUtils.indexOf(null, null, 2)); assertEquals(-1, ArrayUtils.indexOf(new Object[0], "0", 0)); assertEquals(-1, ArrayUtils.indexOf(null, "0", 2)); assertEquals(5, ArrayUtils.indexOf(array, "0", 2)); assertEquals(-1, ArrayUtils.indexOf(array, "1", 2)); assertEquals(2, ArrayUtils.indexOf(array, "2", 2)); assertEquals(3, ArrayUtils.indexOf(array, "3", 2)); assertEquals(4, ArrayUtils.indexOf(array, null, 2)); assertEquals(-1, ArrayUtils.indexOf(array, "notInArray", 2)); assertEquals(4, ArrayUtils.indexOf(array, null, -1)); assertEquals(-1, ArrayUtils.indexOf(array, null, 8)); assertEquals(-1, ArrayUtils.indexOf(array, "0", 8)); } @Test public void testLastIndexOf() { final Object[] array = new Object[]{"0", "1", "2", "3", null, "0"}; assertEquals(-1, ArrayUtils.lastIndexOf(null, null)); assertEquals(-1, ArrayUtils.lastIndexOf(null, "0")); assertEquals(5, ArrayUtils.lastIndexOf(array, "0")); assertEquals(1, ArrayUtils.lastIndexOf(array, "1")); assertEquals(2, ArrayUtils.lastIndexOf(array, "2")); assertEquals(3, ArrayUtils.lastIndexOf(array, "3")); assertEquals(4, ArrayUtils.lastIndexOf(array, null)); assertEquals(-1, ArrayUtils.lastIndexOf(array, "notInArray")); } @Test public void testLastIndexOfWithStartIndex() { final Object[] array = new Object[]{"0", "1", "2", "3", null, "0"}; assertEquals(-1, ArrayUtils.lastIndexOf(null, null, 2)); assertEquals(-1, ArrayUtils.lastIndexOf(null, "0", 2)); assertEquals(0, ArrayUtils.lastIndexOf(array, "0", 2)); assertEquals(1, ArrayUtils.lastIndexOf(array, "1", 2)); assertEquals(2, ArrayUtils.lastIndexOf(array, "2", 2)); assertEquals(-1, ArrayUtils.lastIndexOf(array, "3", 2)); assertEquals(-1, ArrayUtils.lastIndexOf(array, "3", -1)); assertEquals(4, ArrayUtils.lastIndexOf(array, null, 5)); assertEquals(-1, ArrayUtils.lastIndexOf(array, null, 2)); assertEquals(-1, ArrayUtils.lastIndexOf(array, "notInArray", 5)); assertEquals(-1, ArrayUtils.lastIndexOf(array, null, -1)); assertEquals(5, ArrayUtils.lastIndexOf(array, "0", 88)); } @Test public void testContains() { final Object[] array = new Object[]{"0", "1", "2", "3", null, "0"}; assertFalse(ArrayUtils.contains(null, null)); assertFalse(ArrayUtils.contains(null, "1")); assertTrue(ArrayUtils.contains(array, "0")); assertTrue(ArrayUtils.contains(array, "1")); assertTrue(ArrayUtils.contains(array, "2")); assertTrue(ArrayUtils.contains(array, "3")); assertTrue(ArrayUtils.contains(array, null)); assertFalse(ArrayUtils.contains(array, "notInArray")); } @Test public void testContains_LANG_1261() { class LANG1261ParentObject { @Override public boolean equals(final Object o) { return true; } } class LANG1261ChildObject extends LANG1261ParentObject { } final Object[] array = new LANG1261ChildObject[]{new LANG1261ChildObject()}; assertTrue(ArrayUtils.contains(array, new LANG1261ParentObject())); } //----------------------------------------------------------------------- @Test public void testIndexOfLong() { long[] array = null; assertEquals(-1, ArrayUtils.indexOf(array, 0)); array = new long[]{0, 1, 2, 3, 0}; assertEquals(0, ArrayUtils.indexOf(array, 0)); assertEquals(1, ArrayUtils.indexOf(array, 1)); assertEquals(2, ArrayUtils.indexOf(array, 2)); assertEquals(3, ArrayUtils.indexOf(array, 3)); assertEquals(-1, ArrayUtils.indexOf(array, 99)); } @Test public void testIndexOfLongWithStartIndex() { long[] array = null; assertEquals(-1, ArrayUtils.indexOf(array, 0, 2)); array = new long[]{0, 1, 2, 3, 0}; assertEquals(4, ArrayUtils.indexOf(array, 0, 2)); assertEquals(-1, ArrayUtils.indexOf(array, 1, 2)); assertEquals(2, ArrayUtils.indexOf(array, 2, 2)); assertEquals(3, ArrayUtils.indexOf(array, 3, 2)); assertEquals(3, ArrayUtils.indexOf(array, 3, -1)); assertEquals(-1, ArrayUtils.indexOf(array, 99, 0)); assertEquals(-1, ArrayUtils.indexOf(array, 0, 6)); } @Test public void testLastIndexOfLong() { long[] array = null; assertEquals(-1, ArrayUtils.lastIndexOf(array, 0)); array = new long[]{0, 1, 2, 3, 0}; assertEquals(4, ArrayUtils.lastIndexOf(array, 0)); assertEquals(1, ArrayUtils.lastIndexOf(array, 1)); assertEquals(2, ArrayUtils.lastIndexOf(array, 2)); assertEquals(3, ArrayUtils.lastIndexOf(array, 3)); assertEquals(-1, ArrayUtils.lastIndexOf(array, 99)); } @Test public void testLastIndexOfLongWithStartIndex() { long[] array = null; assertEquals(-1, ArrayUtils.lastIndexOf(array, 0, 2)); array = new long[]{0, 1, 2, 3, 0}; assertEquals(0, ArrayUtils.lastIndexOf(array, 0, 2)); assertEquals(1, ArrayUtils.lastIndexOf(array, 1, 2)); assertEquals(2, ArrayUtils.lastIndexOf(array, 2, 2)); assertEquals(-1, ArrayUtils.lastIndexOf(array, 3, 2)); assertEquals(-1, ArrayUtils.lastIndexOf(array, 3, -1)); assertEquals(-1, ArrayUtils.lastIndexOf(array, 99, 4)); assertEquals(4, ArrayUtils.lastIndexOf(array, 0, 88)); } @Test public void testContainsLong() { long[] array = null; assertFalse(ArrayUtils.contains(array, 1)); array = new long[]{0, 1, 2, 3, 0}; assertTrue(ArrayUtils.contains(array, 0)); assertTrue(ArrayUtils.contains(array, 1)); assertTrue(ArrayUtils.contains(array, 2)); assertTrue(ArrayUtils.contains(array, 3)); assertFalse(ArrayUtils.contains(array, 99)); } //----------------------------------------------------------------------- @Test public void testIndexOfInt() { int[] array = null; assertEquals(-1, ArrayUtils.indexOf(array, 0)); array = new int[]{0, 1, 2, 3, 0}; assertEquals(0, ArrayUtils.indexOf(array, 0)); assertEquals(1, ArrayUtils.indexOf(array, 1)); assertEquals(2, ArrayUtils.indexOf(array, 2)); assertEquals(3, ArrayUtils.indexOf(array, 3)); assertEquals(-1, ArrayUtils.indexOf(array, 99)); } @Test public void testIndexOfIntWithStartIndex() { int[] array = null; assertEquals(-1, ArrayUtils.indexOf(array, 0, 2)); array = new int[]{0, 1, 2, 3, 0}; assertEquals(4, ArrayUtils.indexOf(array, 0, 2)); assertEquals(-1, ArrayUtils.indexOf(array, 1, 2)); assertEquals(2, ArrayUtils.indexOf(array, 2, 2)); assertEquals(3, ArrayUtils.indexOf(array, 3, 2)); assertEquals(3, ArrayUtils.indexOf(array, 3, -1)); assertEquals(-1, ArrayUtils.indexOf(array, 99, 0)); assertEquals(-1, ArrayUtils.indexOf(array, 0, 6)); } @Test public void testLastIndexOfInt() { int[] array = null; assertEquals(-1, ArrayUtils.lastIndexOf(array, 0)); array = new int[]{0, 1, 2, 3, 0}; assertEquals(4, ArrayUtils.lastIndexOf(array, 0)); assertEquals(1, ArrayUtils.lastIndexOf(array, 1)); assertEquals(2, ArrayUtils.lastIndexOf(array, 2)); assertEquals(3, ArrayUtils.lastIndexOf(array, 3)); assertEquals(-1, ArrayUtils.lastIndexOf(array, 99)); } @Test public void testLastIndexOfIntWithStartIndex() { int[] array = null; assertEquals(-1, ArrayUtils.lastIndexOf(array, 0, 2)); array = new int[]{0, 1, 2, 3, 0}; assertEquals(0, ArrayUtils.lastIndexOf(array, 0, 2)); assertEquals(1, ArrayUtils.lastIndexOf(array, 1, 2)); assertEquals(2, ArrayUtils.lastIndexOf(array, 2, 2)); assertEquals(-1, ArrayUtils.lastIndexOf(array, 3, 2)); assertEquals(-1, ArrayUtils.lastIndexOf(array, 3, -1)); assertEquals(-1, ArrayUtils.lastIndexOf(array, 99)); assertEquals(4, ArrayUtils.lastIndexOf(array, 0, 88)); } @Test public void testContainsInt() { int[] array = null; assertFalse(ArrayUtils.contains(array, 1)); array = new int[]{0, 1, 2, 3, 0}; assertTrue(ArrayUtils.contains(array, 0)); assertTrue(ArrayUtils.contains(array, 1)); assertTrue(ArrayUtils.contains(array, 2)); assertTrue(ArrayUtils.contains(array, 3)); assertFalse(ArrayUtils.contains(array, 99)); } //----------------------------------------------------------------------- @Test public void testIndexOfShort() { short[] array = null; assertEquals(-1, ArrayUtils.indexOf(array, (short) 0)); array = new short[]{0, 1, 2, 3, 0}; assertEquals(0, ArrayUtils.indexOf(array, (short) 0)); assertEquals(1, ArrayUtils.indexOf(array, (short) 1)); assertEquals(2, ArrayUtils.indexOf(array, (short) 2)); assertEquals(3, ArrayUtils.indexOf(array, (short) 3)); assertEquals(-1, ArrayUtils.indexOf(array, (short) 99)); } @Test public void testIndexOfShortWithStartIndex() { short[] array = null; assertEquals(-1, ArrayUtils.indexOf(array, (short) 0, 2)); array = new short[]{0, 1, 2, 3, 0}; assertEquals(4, ArrayUtils.indexOf(array, (short) 0, 2)); assertEquals(-1, ArrayUtils.indexOf(array, (short) 1, 2)); assertEquals(2, ArrayUtils.indexOf(array, (short) 2, 2)); assertEquals(3, ArrayUtils.indexOf(array, (short) 3, 2)); assertEquals(3, ArrayUtils.indexOf(array, (short) 3, -1)); assertEquals(-1, ArrayUtils.indexOf(array, (short) 99, 0)); assertEquals(-1, ArrayUtils.indexOf(array, (short) 0, 6)); } @Test public void testLastIndexOfShort() { short[] array = null; assertEquals(-1, ArrayUtils.lastIndexOf(array, (short) 0)); array = new short[]{0, 1, 2, 3, 0}; assertEquals(4, ArrayUtils.lastIndexOf(array, (short) 0)); assertEquals(1, ArrayUtils.lastIndexOf(array, (short) 1)); assertEquals(2, ArrayUtils.lastIndexOf(array, (short) 2)); assertEquals(3, ArrayUtils.lastIndexOf(array, (short) 3)); assertEquals(-1, ArrayUtils.lastIndexOf(array, (short) 99)); } @Test public void testLastIndexOfShortWithStartIndex() { short[] array = null; assertEquals(-1, ArrayUtils.lastIndexOf(array, (short) 0, 2)); array = new short[]{0, 1, 2, 3, 0}; assertEquals(0, ArrayUtils.lastIndexOf(array, (short) 0, 2)); assertEquals(1, ArrayUtils.lastIndexOf(array, (short) 1, 2)); assertEquals(2, ArrayUtils.lastIndexOf(array, (short) 2, 2)); assertEquals(-1, ArrayUtils.lastIndexOf(array, (short) 3, 2)); assertEquals(-1, ArrayUtils.lastIndexOf(array, (short) 3, -1)); assertEquals(-1, ArrayUtils.lastIndexOf(array, (short) 99)); assertEquals(4, ArrayUtils.lastIndexOf(array, (short) 0, 88)); } @Test public void testContainsShort() { short[] array = null; assertFalse(ArrayUtils.contains(array, (short) 1)); array = new short[]{0, 1, 2, 3, 0}; assertTrue(ArrayUtils.contains(array, (short) 0)); assertTrue(ArrayUtils.contains(array, (short) 1)); assertTrue(ArrayUtils.contains(array, (short) 2)); assertTrue(ArrayUtils.contains(array, (short) 3)); assertFalse(ArrayUtils.contains(array, (short) 99)); } //----------------------------------------------------------------------- @Test public void testIndexOfChar() { char[] array = null; assertEquals(-1, ArrayUtils.indexOf(array, 'a')); array = new char[]{'a', 'b', 'c', 'd', 'a'}; assertEquals(0, ArrayUtils.indexOf(array, 'a')); assertEquals(1, ArrayUtils.indexOf(array, 'b')); assertEquals(2, ArrayUtils.indexOf(array, 'c')); assertEquals(3, ArrayUtils.indexOf(array, 'd')); assertEquals(-1, ArrayUtils.indexOf(array, 'e')); } @Test public void testIndexOfCharWithStartIndex() { char[] array = null; assertEquals(-1, ArrayUtils.indexOf(array, 'a', 2)); array = new char[]{'a', 'b', 'c', 'd', 'a'}; assertEquals(4, ArrayUtils.indexOf(array, 'a', 2)); assertEquals(-1, ArrayUtils.indexOf(array, 'b', 2)); assertEquals(2, ArrayUtils.indexOf(array, 'c', 2)); assertEquals(3, ArrayUtils.indexOf(array, 'd', 2)); assertEquals(3, ArrayUtils.indexOf(array, 'd', -1)); assertEquals(-1, ArrayUtils.indexOf(array, 'e', 0)); assertEquals(-1, ArrayUtils.indexOf(array, 'a', 6)); } @Test public void testLastIndexOfChar() { char[] array = null; assertEquals(-1, ArrayUtils.lastIndexOf(array, 'a')); array = new char[]{'a', 'b', 'c', 'd', 'a'}; assertEquals(4, ArrayUtils.lastIndexOf(array, 'a')); assertEquals(1, ArrayUtils.lastIndexOf(array, 'b')); assertEquals(2, ArrayUtils.lastIndexOf(array, 'c')); assertEquals(3, ArrayUtils.lastIndexOf(array, 'd')); assertEquals(-1, ArrayUtils.lastIndexOf(array, 'e')); } @Test public void testLastIndexOfCharWithStartIndex() { char[] array = null; assertEquals(-1, ArrayUtils.lastIndexOf(array, 'a', 2)); array = new char[]{'a', 'b', 'c', 'd', 'a'}; assertEquals(0, ArrayUtils.lastIndexOf(array, 'a', 2)); assertEquals(1, ArrayUtils.lastIndexOf(array, 'b', 2)); assertEquals(2, ArrayUtils.lastIndexOf(array, 'c', 2)); assertEquals(-1, ArrayUtils.lastIndexOf(array, 'd', 2)); assertEquals(-1, ArrayUtils.lastIndexOf(array, 'd', -1)); assertEquals(-1, ArrayUtils.lastIndexOf(array, 'e')); assertEquals(4, ArrayUtils.lastIndexOf(array, 'a', 88)); } @Test public void testContainsChar() { char[] array = null; assertFalse(ArrayUtils.contains(array, 'b')); array = new char[]{'a', 'b', 'c', 'd', 'a'}; assertTrue(ArrayUtils.contains(array, 'a')); assertTrue(ArrayUtils.contains(array, 'b')); assertTrue(ArrayUtils.contains(array, 'c')); assertTrue(ArrayUtils.contains(array, 'd')); assertFalse(ArrayUtils.contains(array, 'e')); } //----------------------------------------------------------------------- @Test public void testIndexOfByte() { byte[] array = null; assertEquals(-1, ArrayUtils.indexOf(array, (byte) 0)); array = new byte[]{0, 1, 2, 3, 0}; assertEquals(0, ArrayUtils.indexOf(array, (byte) 0)); assertEquals(1, ArrayUtils.indexOf(array, (byte) 1)); assertEquals(2, ArrayUtils.indexOf(array, (byte) 2)); assertEquals(3, ArrayUtils.indexOf(array, (byte) 3)); assertEquals(-1, ArrayUtils.indexOf(array, (byte) 99)); } @Test public void testIndexOfByteWithStartIndex() { byte[] array = null; assertEquals(-1, ArrayUtils.indexOf(array, (byte) 0, 2)); array = new byte[]{0, 1, 2, 3, 0}; assertEquals(4, ArrayUtils.indexOf(array, (byte) 0, 2)); assertEquals(-1, ArrayUtils.indexOf(array, (byte) 1, 2)); assertEquals(2, ArrayUtils.indexOf(array, (byte) 2, 2)); assertEquals(3, ArrayUtils.indexOf(array, (byte) 3, 2)); assertEquals(3, ArrayUtils.indexOf(array, (byte) 3, -1)); assertEquals(-1, ArrayUtils.indexOf(array, (byte) 99, 0)); assertEquals(-1, ArrayUtils.indexOf(array, (byte) 0, 6)); } @Test public void testLastIndexOfByte() { byte[] array = null; assertEquals(-1, ArrayUtils.lastIndexOf(array, (byte) 0)); array = new byte[]{0, 1, 2, 3, 0}; assertEquals(4, ArrayUtils.lastIndexOf(array, (byte) 0)); assertEquals(1, ArrayUtils.lastIndexOf(array, (byte) 1)); assertEquals(2, ArrayUtils.lastIndexOf(array, (byte) 2)); assertEquals(3, ArrayUtils.lastIndexOf(array, (byte) 3)); assertEquals(-1, ArrayUtils.lastIndexOf(array, (byte) 99)); } @Test public void testLastIndexOfByteWithStartIndex() { byte[] array = null; assertEquals(-1, ArrayUtils.lastIndexOf(array, (byte) 0, 2)); array = new byte[]{0, 1, 2, 3, 0}; assertEquals(0, ArrayUtils.lastIndexOf(array, (byte) 0, 2)); assertEquals(1, ArrayUtils.lastIndexOf(array, (byte) 1, 2)); assertEquals(2, ArrayUtils.lastIndexOf(array, (byte) 2, 2)); assertEquals(-1, ArrayUtils.lastIndexOf(array, (byte) 3, 2)); assertEquals(-1, ArrayUtils.lastIndexOf(array, (byte) 3, -1)); assertEquals(-1, ArrayUtils.lastIndexOf(array, (byte) 99)); assertEquals(4, ArrayUtils.lastIndexOf(array, (byte) 0, 88)); } @Test public void testContainsByte() { byte[] array = null; assertFalse(ArrayUtils.contains(array, (byte) 1)); array = new byte[]{0, 1, 2, 3, 0}; assertTrue(ArrayUtils.contains(array, (byte) 0)); assertTrue(ArrayUtils.contains(array, (byte) 1)); assertTrue(ArrayUtils.contains(array, (byte) 2)); assertTrue(ArrayUtils.contains(array, (byte) 3)); assertFalse(ArrayUtils.contains(array, (byte) 99)); } //----------------------------------------------------------------------- @SuppressWarnings("cast") @Test public void testIndexOfDouble() { double[] array = null; assertEquals(-1, ArrayUtils.indexOf(array, (double) 0)); array = new double[0]; assertEquals(-1, ArrayUtils.indexOf(array, (double) 0)); array = new double[]{0, 1, 2, 3, 0}; assertEquals(0, ArrayUtils.indexOf(array, (double) 0)); assertEquals(1, ArrayUtils.indexOf(array, (double) 1)); assertEquals(2, ArrayUtils.indexOf(array, (double) 2)); assertEquals(3, ArrayUtils.indexOf(array, (double) 3)); assertEquals(3, ArrayUtils.indexOf(array, (double) 3, -1)); assertEquals(-1, ArrayUtils.indexOf(array, (double) 99)); } @SuppressWarnings("cast") @Test public void testIndexOfDoubleTolerance() { double[] array = null; assertEquals(-1, ArrayUtils.indexOf(array, (double) 0, (double) 0)); array = new double[0]; assertEquals(-1, ArrayUtils.indexOf(array, (double) 0, (double) 0)); array = new double[]{0, 1, 2, 3, 0}; assertEquals(0, ArrayUtils.indexOf(array, (double) 0, 0.3)); assertEquals(2, ArrayUtils.indexOf(array, 2.2, 0.35)); assertEquals(3, ArrayUtils.indexOf(array, 4.15, 2.0)); assertEquals(1, ArrayUtils.indexOf(array, 1.00001324, 0.0001)); } @SuppressWarnings("cast") @Test public void testIndexOfDoubleWithStartIndex() { double[] array = null; assertEquals(-1, ArrayUtils.indexOf(array, (double) 0, 2)); array = new double[0]; assertEquals(-1, ArrayUtils.indexOf(array, (double) 0, 2)); array = new double[]{0, 1, 2, 3, 0}; assertEquals(4, ArrayUtils.indexOf(array, (double) 0, 2)); assertEquals(-1, ArrayUtils.indexOf(array, (double) 1, 2)); assertEquals(2, ArrayUtils.indexOf(array, (double) 2, 2)); assertEquals(3, ArrayUtils.indexOf(array, (double) 3, 2)); assertEquals(-1, ArrayUtils.indexOf(array, (double) 99, 0)); assertEquals(-1, ArrayUtils.indexOf(array, (double) 0, 6)); } @SuppressWarnings("cast") @Test public void testIndexOfDoubleWithStartIndexTolerance() { double[] array = null; assertEquals(-1, ArrayUtils.indexOf(array, (double) 0, 2, (double) 0)); array = new double[0]; assertEquals(-1, ArrayUtils.indexOf(array, (double) 0, 2, (double) 0)); array = new double[]{0, 1, 2, 3, 0}; assertEquals(-1, ArrayUtils.indexOf(array, (double) 0, 99, 0.3)); assertEquals(0, ArrayUtils.indexOf(array, (double) 0, 0, 0.3)); assertEquals(4, ArrayUtils.indexOf(array, (double) 0, 3, 0.3)); assertEquals(2, ArrayUtils.indexOf(array, 2.2, 0, 0.35)); assertEquals(3, ArrayUtils.indexOf(array, 4.15, 0, 2.0)); assertEquals(1, ArrayUtils.indexOf(array, 1.00001324, 0, 0.0001)); assertEquals(3, ArrayUtils.indexOf(array, 4.15, -1, 2.0)); assertEquals(1, ArrayUtils.indexOf(array, 1.00001324, -300, 0.0001)); } @SuppressWarnings("cast") @Test public void testLastIndexOfDouble() { double[] array = null; assertEquals(-1, ArrayUtils.lastIndexOf(array, (double) 0)); array = new double[0]; assertEquals(-1, ArrayUtils.lastIndexOf(array, (double) 0)); array = new double[]{0, 1, 2, 3, 0}; assertEquals(4, ArrayUtils.lastIndexOf(array, (double) 0)); assertEquals(1, ArrayUtils.lastIndexOf(array, (double) 1)); assertEquals(2, ArrayUtils.lastIndexOf(array, (double) 2)); assertEquals(3, ArrayUtils.lastIndexOf(array, (double) 3)); assertEquals(-1, ArrayUtils.lastIndexOf(array, (double) 99)); } @SuppressWarnings("cast") @Test public void testLastIndexOfDoubleTolerance() { double[] array = null; assertEquals(-1, ArrayUtils.lastIndexOf(array, (double) 0, (double) 0)); array = new double[0]; assertEquals(-1, ArrayUtils.lastIndexOf(array, (double) 0, (double) 0)); array = new double[]{0, 1, 2, 3, 0}; assertEquals(4, ArrayUtils.lastIndexOf(array, (double) 0, 0.3)); assertEquals(2, ArrayUtils.lastIndexOf(array, 2.2, 0.35)); assertEquals(3, ArrayUtils.lastIndexOf(array, 4.15, 2.0)); assertEquals(1, ArrayUtils.lastIndexOf(array, 1.00001324, 0.0001)); } @SuppressWarnings("cast") @Test public void testLastIndexOfDoubleWithStartIndex() { double[] array = null; assertEquals(-1, ArrayUtils.lastIndexOf(array, (double) 0, 2)); array = new double[0]; assertEquals(-1, ArrayUtils.lastIndexOf(array, (double) 0, 2)); array = new double[]{0, 1, 2, 3, 0}; assertEquals(0, ArrayUtils.lastIndexOf(array, (double) 0, 2)); assertEquals(1, ArrayUtils.lastIndexOf(array, (double) 1, 2)); assertEquals(2, ArrayUtils.lastIndexOf(array, (double) 2, 2)); assertEquals(-1, ArrayUtils.lastIndexOf(array, (double) 3, 2)); assertEquals(-1, ArrayUtils.lastIndexOf(array, (double) 3, -1)); assertEquals(-1, ArrayUtils.lastIndexOf(array, (double) 99)); assertEquals(4, ArrayUtils.lastIndexOf(array, (double) 0, 88)); } @SuppressWarnings("cast") @Test public void testLastIndexOfDoubleWithStartIndexTolerance() { double[] array = null; assertEquals(-1, ArrayUtils.lastIndexOf(array, (double) 0, 2, (double) 0)); array = new double[0]; assertEquals(-1, ArrayUtils.lastIndexOf(array, (double) 0, 2, (double) 0)); array = new double[]{(double) 3}; assertEquals(-1, ArrayUtils.lastIndexOf(array, (double) 1, 0, (double) 0)); array = new double[]{0, 1, 2, 3, 0}; assertEquals(4, ArrayUtils.lastIndexOf(array, (double) 0, 99, 0.3)); assertEquals(0, ArrayUtils.lastIndexOf(array, (double) 0, 3, 0.3)); assertEquals(2, ArrayUtils.lastIndexOf(array, 2.2, 3, 0.35)); assertEquals(3, ArrayUtils.lastIndexOf(array, 4.15, array.length, 2.0)); assertEquals(1, ArrayUtils.lastIndexOf(array, 1.00001324, array.length, 0.0001)); assertEquals(-1, ArrayUtils.lastIndexOf(array, 4.15, -200, 2.0)); } @SuppressWarnings("cast") @Test public void testContainsDouble() { double[] array = null; assertFalse(ArrayUtils.contains(array, (double) 1)); array = new double[]{0, 1, 2, 3, 0}; assertTrue(ArrayUtils.contains(array, (double) 0)); assertTrue(ArrayUtils.contains(array, (double) 1)); assertTrue(ArrayUtils.contains(array, (double) 2)); assertTrue(ArrayUtils.contains(array, (double) 3)); assertFalse(ArrayUtils.contains(array, (double) 99)); } @SuppressWarnings("cast") @Test public void testContainsDoubleTolerance() { double[] array = null; assertFalse(ArrayUtils.contains(array, (double) 1, (double) 0)); array = new double[]{0, 1, 2, 3, 0}; assertFalse(ArrayUtils.contains(array, 4.0, 0.33)); assertFalse(ArrayUtils.contains(array, 2.5, 0.49)); assertTrue(ArrayUtils.contains(array, 2.5, 0.50)); assertTrue(ArrayUtils.contains(array, 2.5, 0.51)); } //----------------------------------------------------------------------- @SuppressWarnings("cast") @Test public void testIndexOfFloat() { float[] array = null; assertEquals(-1, ArrayUtils.indexOf(array, (float) 0)); array = new float[0]; assertEquals(-1, ArrayUtils.indexOf(array, (float) 0)); array = new float[]{0, 1, 2, 3, 0}; assertEquals(0, ArrayUtils.indexOf(array, (float) 0)); assertEquals(1, ArrayUtils.indexOf(array, (float) 1)); assertEquals(2, ArrayUtils.indexOf(array, (float) 2)); assertEquals(3, ArrayUtils.indexOf(array, (float) 3)); assertEquals(-1, ArrayUtils.indexOf(array, (float) 99)); } @SuppressWarnings("cast") @Test public void testIndexOfFloatWithStartIndex() { float[] array = null; assertEquals(-1, ArrayUtils.indexOf(array, (float) 0, 2)); array = new float[0]; assertEquals(-1, ArrayUtils.indexOf(array, (float) 0, 2)); array = new float[]{0, 1, 2, 3, 0}; assertEquals(4, ArrayUtils.indexOf(array, (float) 0, 2)); assertEquals(-1, ArrayUtils.indexOf(array, (float) 1, 2)); assertEquals(2, ArrayUtils.indexOf(array, (float) 2, 2)); assertEquals(3, ArrayUtils.indexOf(array, (float) 3, 2)); assertEquals(3, ArrayUtils.indexOf(array, (float) 3, -1)); assertEquals(-1, ArrayUtils.indexOf(array, (float) 99, 0)); assertEquals(-1, ArrayUtils.indexOf(array, (float) 0, 6)); } @SuppressWarnings("cast") @Test public void testLastIndexOfFloat() { float[] array = null; assertEquals(-1, ArrayUtils.lastIndexOf(array, (float) 0)); array = new float[0]; assertEquals(-1, ArrayUtils.lastIndexOf(array, (float) 0)); array = new float[]{0, 1, 2, 3, 0}; assertEquals(4, ArrayUtils.lastIndexOf(array, (float) 0)); assertEquals(1, ArrayUtils.lastIndexOf(array, (float) 1)); assertEquals(2, ArrayUtils.lastIndexOf(array, (float) 2)); assertEquals(3, ArrayUtils.lastIndexOf(array, (float) 3)); assertEquals(-1, ArrayUtils.lastIndexOf(array, (float) 99)); } @SuppressWarnings("cast") @Test public void testLastIndexOfFloatWithStartIndex() { float[] array = null; assertEquals(-1, ArrayUtils.lastIndexOf(array, (float) 0, 2)); array = new float[0]; assertEquals(-1, ArrayUtils.lastIndexOf(array, (float) 0, 2)); array = new float[]{0, 1, 2, 3, 0}; assertEquals(0, ArrayUtils.lastIndexOf(array, (float) 0, 2)); assertEquals(1, ArrayUtils.lastIndexOf(array, (float) 1, 2)); assertEquals(2, ArrayUtils.lastIndexOf(array, (float) 2, 2)); assertEquals(-1, ArrayUtils.lastIndexOf(array, (float) 3, 2)); assertEquals(-1, ArrayUtils.lastIndexOf(array, (float) 3, -1)); assertEquals(-1, ArrayUtils.lastIndexOf(array, (float) 99)); assertEquals(4, ArrayUtils.lastIndexOf(array, (float) 0, 88)); } @SuppressWarnings("cast") @Test public void testContainsFloat() { float[] array = null; assertFalse(ArrayUtils.contains(array, (float) 1)); array = new float[]{0, 1, 2, 3, 0}; assertTrue(ArrayUtils.contains(array, (float) 0)); assertTrue(ArrayUtils.contains(array, (float) 1)); assertTrue(ArrayUtils.contains(array, (float) 2)); assertTrue(ArrayUtils.contains(array, (float) 3)); assertFalse(ArrayUtils.contains(array, (float) 99)); } //----------------------------------------------------------------------- @Test public void testIndexOfBoolean() { boolean[] array = null; assertEquals(-1, ArrayUtils.indexOf(array, true)); array = new boolean[0]; assertEquals(-1, ArrayUtils.indexOf(array, true)); array = new boolean[]{true, false, true}; assertEquals(0, ArrayUtils.indexOf(array, true)); assertEquals(1, ArrayUtils.indexOf(array, false)); array = new boolean[]{true, true}; assertEquals(-1, ArrayUtils.indexOf(array, false)); } @Test public void testIndexOfBooleanWithStartIndex() { boolean[] array = null; assertEquals(-1, ArrayUtils.indexOf(array, true, 2)); array = new boolean[0]; assertEquals(-1, ArrayUtils.indexOf(array, true, 2)); array = new boolean[]{true, false, true}; assertEquals(2, ArrayUtils.indexOf(array, true, 1)); assertEquals(-1, ArrayUtils.indexOf(array, false, 2)); assertEquals(1, ArrayUtils.indexOf(array, false, 0)); assertEquals(1, ArrayUtils.indexOf(array, false, -1)); array = new boolean[]{true, true}; assertEquals(-1, ArrayUtils.indexOf(array, false, 0)); assertEquals(-1, ArrayUtils.indexOf(array, false, -1)); } @Test public void testLastIndexOfBoolean() { boolean[] array = null; assertEquals(-1, ArrayUtils.lastIndexOf(array, true)); array = new boolean[0]; assertEquals(-1, ArrayUtils.lastIndexOf(array, true)); array = new boolean[]{true, false, true}; assertEquals(2, ArrayUtils.lastIndexOf(array, true)); assertEquals(1, ArrayUtils.lastIndexOf(array, false)); array = new boolean[]{true, true}; assertEquals(-1, ArrayUtils.lastIndexOf(array, false)); } @Test public void testLastIndexOfBooleanWithStartIndex() { boolean[] array = null; assertEquals(-1, ArrayUtils.lastIndexOf(array, true, 2)); array = new boolean[0]; assertEquals(-1, ArrayUtils.lastIndexOf(array, true, 2)); array = new boolean[]{true, false, true}; assertEquals(2, ArrayUtils.lastIndexOf(array, true, 2)); assertEquals(0, ArrayUtils.lastIndexOf(array, true, 1)); assertEquals(1, ArrayUtils.lastIndexOf(array, false, 2)); assertEquals(-1, ArrayUtils.lastIndexOf(array, true, -1)); array = new boolean[]{true, true}; assertEquals(-1, ArrayUtils.lastIndexOf(array, false, 2)); assertEquals(-1, ArrayUtils.lastIndexOf(array, true, -1)); } @Test public void testContainsBoolean() { boolean[] array = null; assertFalse(ArrayUtils.contains(array, true)); array = new boolean[]{true, false, true}; assertTrue(ArrayUtils.contains(array, true)); assertTrue(ArrayUtils.contains(array, false)); array = new boolean[]{true, true}; assertTrue(ArrayUtils.contains(array, true)); assertFalse(ArrayUtils.contains(array, false)); } // testToPrimitive/Object for boolean // ----------------------------------------------------------------------- @Test public void testToPrimitive_boolean() { final Boolean[] b = null; assertNull(ArrayUtils.toPrimitive(b)); assertSame(ArrayUtils.EMPTY_BOOLEAN_ARRAY, ArrayUtils.toPrimitive(new Boolean[0])); assertTrue(Arrays.equals( new boolean[]{true, false, true}, ArrayUtils.toPrimitive(new Boolean[]{Boolean.TRUE, Boolean.FALSE, Boolean.TRUE})) ); try { ArrayUtils.toPrimitive(new Boolean[]{Boolean.TRUE, null}); fail(); } catch (final NullPointerException ex) { } } @Test public void testToPrimitive_boolean_boolean() { assertNull(ArrayUtils.toPrimitive(null, false)); assertSame(ArrayUtils.EMPTY_BOOLEAN_ARRAY, ArrayUtils.toPrimitive(new Boolean[0], false)); assertTrue(Arrays.equals( new boolean[]{true, false, true}, ArrayUtils.toPrimitive(new Boolean[]{Boolean.TRUE, Boolean.FALSE, Boolean.TRUE}, false)) ); assertTrue(Arrays.equals( new boolean[]{true, false, false}, ArrayUtils.toPrimitive(new Boolean[]{Boolean.TRUE, null, Boolean.FALSE}, false)) ); assertTrue(Arrays.equals( new boolean[]{true, true, false}, ArrayUtils.toPrimitive(new Boolean[]{Boolean.TRUE, null, Boolean.FALSE}, true)) ); } @Test public void testToObject_boolean() { final boolean[] b = null; assertArrayEquals(null, ArrayUtils.toObject(b)); assertSame(ArrayUtils.EMPTY_BOOLEAN_OBJECT_ARRAY, ArrayUtils.toObject(new boolean[0])); assertTrue(Arrays.equals( new Boolean[]{Boolean.TRUE, Boolean.FALSE, Boolean.TRUE}, ArrayUtils.toObject(new boolean[]{true, false, true})) ); } // testToPrimitive/Object for byte // ----------------------------------------------------------------------- @Test public void testToPrimitive_char() { final Character[] b = null; assertNull(ArrayUtils.toPrimitive(b)); assertSame(ArrayUtils.EMPTY_CHAR_ARRAY, ArrayUtils.toPrimitive(new Character[0])); assertTrue(Arrays.equals( new char[]{Character.MIN_VALUE, Character.MAX_VALUE, '0'}, ArrayUtils.toPrimitive(new Character[]{new Character(Character.MIN_VALUE), new Character(Character.MAX_VALUE), new Character('0')})) ); try { ArrayUtils.toPrimitive(new Character[]{new Character(Character.MIN_VALUE), null}); fail(); } catch (final NullPointerException ex) { } } @Test public void testToPrimitive_char_char() { final Character[] b = null; assertNull(ArrayUtils.toPrimitive(b, Character.MIN_VALUE)); assertSame(ArrayUtils.EMPTY_CHAR_ARRAY, ArrayUtils.toPrimitive(new Character[0], (char) 0)); assertTrue(Arrays.equals( new char[]{Character.MIN_VALUE, Character.MAX_VALUE, '0'}, ArrayUtils.toPrimitive(new Character[]{new Character(Character.MIN_VALUE), new Character(Character.MAX_VALUE), new Character('0')}, Character.MIN_VALUE)) ); assertTrue(Arrays.equals( new char[]{Character.MIN_VALUE, Character.MAX_VALUE, '0'}, ArrayUtils.toPrimitive(new Character[]{new Character(Character.MIN_VALUE), null, new Character('0')}, Character.MAX_VALUE)) ); } @Test public void testToObject_char() { final char[] b = null; assertArrayEquals(null, ArrayUtils.toObject(b)); assertSame(ArrayUtils.EMPTY_CHARACTER_OBJECT_ARRAY, ArrayUtils.toObject(new char[0])); assertTrue(Arrays.equals( new Character[]{new Character(Character.MIN_VALUE), new Character(Character.MAX_VALUE), new Character('0')}, ArrayUtils.toObject(new char[]{Character.MIN_VALUE, Character.MAX_VALUE, '0'})) ); } // testToPrimitive/Object for byte // ----------------------------------------------------------------------- @Test public void testToPrimitive_byte() { final Byte[] b = null; assertNull(ArrayUtils.toPrimitive(b)); assertSame(ArrayUtils.EMPTY_BYTE_ARRAY, ArrayUtils.toPrimitive(new Byte[0])); assertTrue(Arrays.equals( new byte[]{Byte.MIN_VALUE, Byte.MAX_VALUE, (byte) 9999999}, ArrayUtils.toPrimitive(new Byte[]{Byte.valueOf(Byte.MIN_VALUE), Byte.valueOf(Byte.MAX_VALUE), Byte.valueOf((byte) 9999999)})) ); try { ArrayUtils.toPrimitive(new Byte[]{Byte.valueOf(Byte.MIN_VALUE), null}); fail(); } catch (final NullPointerException ex) { } } @Test public void testToPrimitive_byte_byte() { final Byte[] b = null; assertNull(ArrayUtils.toPrimitive(b, Byte.MIN_VALUE)); assertSame(ArrayUtils.EMPTY_BYTE_ARRAY, ArrayUtils.toPrimitive(new Byte[0], (byte) 1)); assertTrue(Arrays.equals( new byte[]{Byte.MIN_VALUE, Byte.MAX_VALUE, (byte) 9999999}, ArrayUtils.toPrimitive(new Byte[]{Byte.valueOf(Byte.MIN_VALUE), Byte.valueOf(Byte.MAX_VALUE), Byte.valueOf((byte) 9999999)}, Byte.MIN_VALUE)) ); assertTrue(Arrays.equals( new byte[]{Byte.MIN_VALUE, Byte.MAX_VALUE, (byte) 9999999}, ArrayUtils.toPrimitive(new Byte[]{Byte.valueOf(Byte.MIN_VALUE), null, Byte.valueOf((byte) 9999999)}, Byte.MAX_VALUE)) ); } @Test public void testToObject_byte() { final byte[] b = null; assertArrayEquals(null, ArrayUtils.toObject(b)); assertSame(ArrayUtils.EMPTY_BYTE_OBJECT_ARRAY, ArrayUtils.toObject(new byte[0])); assertTrue(Arrays.equals( new Byte[]{Byte.valueOf(Byte.MIN_VALUE), Byte.valueOf(Byte.MAX_VALUE), Byte.valueOf((byte) 9999999)}, ArrayUtils.toObject(new byte[]{Byte.MIN_VALUE, Byte.MAX_VALUE, (byte) 9999999})) ); } // testToPrimitive/Object for short // ----------------------------------------------------------------------- @Test public void testToPrimitive_short() { final Short[] b = null; assertNull(ArrayUtils.toPrimitive(b)); assertSame(ArrayUtils.EMPTY_SHORT_ARRAY, ArrayUtils.toPrimitive(new Short[0])); assertTrue(Arrays.equals( new short[]{Short.MIN_VALUE, Short.MAX_VALUE, (short) 9999999}, ArrayUtils.toPrimitive(new Short[]{Short.valueOf(Short.MIN_VALUE), Short.valueOf(Short.MAX_VALUE), Short.valueOf((short) 9999999)})) ); try { ArrayUtils.toPrimitive(new Short[]{Short.valueOf(Short.MIN_VALUE), null}); fail(); } catch (final NullPointerException ex) { } } @Test public void testToPrimitive_short_short() { final Short[] s = null; assertNull(ArrayUtils.toPrimitive(s, Short.MIN_VALUE)); assertSame(ArrayUtils.EMPTY_SHORT_ARRAY, ArrayUtils.toPrimitive(new Short[0], Short.MIN_VALUE)); assertTrue(Arrays.equals( new short[]{Short.MIN_VALUE, Short.MAX_VALUE, (short) 9999999}, ArrayUtils.toPrimitive(new Short[]{Short.valueOf(Short.MIN_VALUE), Short.valueOf(Short.MAX_VALUE), Short.valueOf((short) 9999999)}, Short.MIN_VALUE)) ); assertTrue(Arrays.equals( new short[]{Short.MIN_VALUE, Short.MAX_VALUE, (short) 9999999}, ArrayUtils.toPrimitive(new Short[]{Short.valueOf(Short.MIN_VALUE), null, Short.valueOf((short) 9999999)}, Short.MAX_VALUE)) ); } @Test public void testToObject_short() { final short[] b = null; assertArrayEquals(null, ArrayUtils.toObject(b)); assertSame(ArrayUtils.EMPTY_SHORT_OBJECT_ARRAY, ArrayUtils.toObject(new short[0])); assertTrue(Arrays.equals( new Short[]{Short.valueOf(Short.MIN_VALUE), Short.valueOf(Short.MAX_VALUE), Short.valueOf((short) 9999999)}, ArrayUtils.toObject(new short[]{Short.MIN_VALUE, Short.MAX_VALUE, (short) 9999999})) ); } // testToPrimitive/Object for int // ----------------------------------------------------------------------- @Test public void testToPrimitive_int() { final Integer[] b = null; assertNull(ArrayUtils.toPrimitive(b)); assertSame(ArrayUtils.EMPTY_INT_ARRAY, ArrayUtils.toPrimitive(new Integer[0])); assertTrue(Arrays.equals( new int[]{Integer.MIN_VALUE, Integer.MAX_VALUE, 9999999}, ArrayUtils.toPrimitive(new Integer[]{Integer.valueOf(Integer.MIN_VALUE), Integer.valueOf(Integer.MAX_VALUE), Integer.valueOf(9999999)})) ); try { ArrayUtils.toPrimitive(new Integer[]{Integer.valueOf(Integer.MIN_VALUE), null}); fail(); } catch (final NullPointerException ex) { } } @Test public void testToPrimitive_int_int() { final Long[] l = null; assertNull(ArrayUtils.toPrimitive(l, Integer.MIN_VALUE)); assertSame(ArrayUtils.EMPTY_INT_ARRAY, ArrayUtils.toPrimitive(new Integer[0], 1)); assertTrue(Arrays.equals( new int[]{Integer.MIN_VALUE, Integer.MAX_VALUE, 9999999}, ArrayUtils.toPrimitive(new Integer[]{Integer.valueOf(Integer.MIN_VALUE), Integer.valueOf(Integer.MAX_VALUE), Integer.valueOf(9999999)}, 1))); assertTrue(Arrays.equals( new int[]{Integer.MIN_VALUE, Integer.MAX_VALUE, 9999999}, ArrayUtils.toPrimitive(new Integer[]{Integer.valueOf(Integer.MIN_VALUE), null, Integer.valueOf(9999999)}, Integer.MAX_VALUE)) ); } @Test public void testToPrimitive_intNull() { final Integer[] iArray = null; assertNull(ArrayUtils.toPrimitive(iArray, Integer.MIN_VALUE)); } @Test public void testToObject_int() { final int[] b = null; assertArrayEquals(null, ArrayUtils.toObject(b)); assertSame( ArrayUtils.EMPTY_INTEGER_OBJECT_ARRAY, ArrayUtils.toObject(new int[0])); assertTrue( Arrays.equals( new Integer[]{ Integer.valueOf(Integer.MIN_VALUE), Integer.valueOf(Integer.MAX_VALUE), Integer.valueOf(9999999)}, ArrayUtils.toObject( new int[]{Integer.MIN_VALUE, Integer.MAX_VALUE, 9999999}))); } // testToPrimitive/Object for long // ----------------------------------------------------------------------- @Test public void testToPrimitive_long() { final Long[] b = null; assertNull(ArrayUtils.toPrimitive(b)); assertSame(ArrayUtils.EMPTY_LONG_ARRAY, ArrayUtils.toPrimitive(new Long[0])); assertTrue(Arrays.equals( new long[]{Long.MIN_VALUE, Long.MAX_VALUE, 9999999}, ArrayUtils.toPrimitive(new Long[]{Long.valueOf(Long.MIN_VALUE), Long.valueOf(Long.MAX_VALUE), Long.valueOf(9999999)})) ); try { ArrayUtils.toPrimitive(new Long[]{Long.valueOf(Long.MIN_VALUE), null}); fail(); } catch (final NullPointerException ex) { } } @Test public void testToPrimitive_long_long() { final Long[] l = null; assertNull(ArrayUtils.toPrimitive(l, Long.MIN_VALUE)); assertSame(ArrayUtils.EMPTY_LONG_ARRAY, ArrayUtils.toPrimitive(new Long[0], 1)); assertTrue(Arrays.equals( new long[]{Long.MIN_VALUE, Long.MAX_VALUE, 9999999}, ArrayUtils.toPrimitive(new Long[]{Long.valueOf(Long.MIN_VALUE), Long.valueOf(Long.MAX_VALUE), Long.valueOf(9999999)}, 1))); assertTrue(Arrays.equals( new long[]{Long.MIN_VALUE, Long.MAX_VALUE, 9999999}, ArrayUtils.toPrimitive(new Long[]{Long.valueOf(Long.MIN_VALUE), null, Long.valueOf(9999999)}, Long.MAX_VALUE)) ); } @Test public void testToObject_long() { final long[] b = null; assertArrayEquals(null, ArrayUtils.toObject(b)); assertSame( ArrayUtils.EMPTY_LONG_OBJECT_ARRAY, ArrayUtils.toObject(new long[0])); assertTrue( Arrays.equals( new Long[]{ Long.valueOf(Long.MIN_VALUE), Long.valueOf(Long.MAX_VALUE), Long.valueOf(9999999)}, ArrayUtils.toObject( new long[]{Long.MIN_VALUE, Long.MAX_VALUE, 9999999}))); } // testToPrimitive/Object for float // ----------------------------------------------------------------------- @Test public void testToPrimitive_float() { final Float[] b = null; assertNull(ArrayUtils.toPrimitive(b)); assertSame(ArrayUtils.EMPTY_FLOAT_ARRAY, ArrayUtils.toPrimitive(new Float[0])); assertTrue(Arrays.equals( new float[]{Float.MIN_VALUE, Float.MAX_VALUE, 9999999}, ArrayUtils.toPrimitive(new Float[]{Float.valueOf(Float.MIN_VALUE), Float.valueOf(Float.MAX_VALUE), Float.valueOf(9999999)})) ); try { ArrayUtils.toPrimitive(new Float[]{Float.valueOf(Float.MIN_VALUE), null}); fail(); } catch (final NullPointerException ex) { } } @Test public void testToPrimitive_float_float() { final Float[] l = null; assertNull(ArrayUtils.toPrimitive(l, Float.MIN_VALUE)); assertSame(ArrayUtils.EMPTY_FLOAT_ARRAY, ArrayUtils.toPrimitive(new Float[0], 1)); assertTrue(Arrays.equals( new float[]{Float.MIN_VALUE, Float.MAX_VALUE, 9999999}, ArrayUtils.toPrimitive(new Float[]{Float.valueOf(Float.MIN_VALUE), Float.valueOf(Float.MAX_VALUE), Float.valueOf(9999999)}, 1))); assertTrue(Arrays.equals( new float[]{Float.MIN_VALUE, Float.MAX_VALUE, 9999999}, ArrayUtils.toPrimitive(new Float[]{Float.valueOf(Float.MIN_VALUE), null, Float.valueOf(9999999)}, Float.MAX_VALUE)) ); } @Test public void testToObject_float() { final float[] b = null; assertArrayEquals(null, ArrayUtils.toObject(b)); assertSame( ArrayUtils.EMPTY_FLOAT_OBJECT_ARRAY, ArrayUtils.toObject(new float[0])); assertTrue( Arrays.equals( new Float[]{ Float.valueOf(Float.MIN_VALUE), Float.valueOf(Float.MAX_VALUE), Float.valueOf(9999999)}, ArrayUtils.toObject( new float[]{Float.MIN_VALUE, Float.MAX_VALUE, 9999999}))); } // testToPrimitive/Object for double // ----------------------------------------------------------------------- @Test public void testToPrimitive_double() { final Double[] b = null; assertNull(ArrayUtils.toPrimitive(b)); assertSame(ArrayUtils.EMPTY_DOUBLE_ARRAY, ArrayUtils.toPrimitive(new Double[0])); assertTrue(Arrays.equals( new double[]{Double.MIN_VALUE, Double.MAX_VALUE, 9999999}, ArrayUtils.toPrimitive(new Double[]{Double.valueOf(Double.MIN_VALUE), Double.valueOf(Double.MAX_VALUE), Double.valueOf(9999999)})) ); try { ArrayUtils.toPrimitive(new Float[]{Float.valueOf(Float.MIN_VALUE), null}); fail(); } catch (final NullPointerException ex) { } } @Test public void testToPrimitive_double_double() { final Double[] l = null; assertNull(ArrayUtils.toPrimitive(l, Double.MIN_VALUE)); assertSame(ArrayUtils.EMPTY_DOUBLE_ARRAY, ArrayUtils.toPrimitive(new Double[0], 1)); assertTrue(Arrays.equals( new double[]{Double.MIN_VALUE, Double.MAX_VALUE, 9999999}, ArrayUtils.toPrimitive(new Double[]{Double.valueOf(Double.MIN_VALUE), Double.valueOf(Double.MAX_VALUE), Double.valueOf(9999999)}, 1))); assertTrue(Arrays.equals( new double[]{Double.MIN_VALUE, Double.MAX_VALUE, 9999999}, ArrayUtils.toPrimitive(new Double[]{Double.valueOf(Double.MIN_VALUE), null, Double.valueOf(9999999)}, Double.MAX_VALUE)) ); } @Test public void testToObject_double() { final double[] b = null; assertArrayEquals(null, ArrayUtils.toObject(b)); assertSame( ArrayUtils.EMPTY_DOUBLE_OBJECT_ARRAY, ArrayUtils.toObject(new double[0])); assertTrue( Arrays.equals( new Double[]{ Double.valueOf(Double.MIN_VALUE), Double.valueOf(Double.MAX_VALUE), Double.valueOf(9999999)}, ArrayUtils.toObject( new double[]{Double.MIN_VALUE, Double.MAX_VALUE, 9999999}))); } //----------------------------------------------------------------------- /** * Test for {@link ArrayUtils#isEmpty(java.lang.Object[])}. */ @Test public void testIsEmptyObject() { final Object[] emptyArray = new Object[]{}; final Object[] notEmptyArray = new Object[]{new String("Value")}; assertTrue(ArrayUtils.isEmpty((Object[]) null)); assertTrue(ArrayUtils.isEmpty(emptyArray)); assertFalse(ArrayUtils.isEmpty(notEmptyArray)); } /** * Tests for {@link ArrayUtils#isEmpty(long[])}, * {@link ArrayUtils#isEmpty(int[])}, * {@link ArrayUtils#isEmpty(short[])}, * {@link ArrayUtils#isEmpty(char[])}, * {@link ArrayUtils#isEmpty(byte[])}, * {@link ArrayUtils#isEmpty(double[])}, * {@link ArrayUtils#isEmpty(float[])} and * {@link ArrayUtils#isEmpty(boolean[])}. */ @Test public void testIsEmptyPrimitives() { final long[] emptyLongArray = new long[]{}; final long[] notEmptyLongArray = new long[]{1L}; assertTrue(ArrayUtils.isEmpty((long[]) null)); assertTrue(ArrayUtils.isEmpty(emptyLongArray)); assertFalse(ArrayUtils.isEmpty(notEmptyLongArray)); final int[] emptyIntArray = new int[]{}; final int[] notEmptyIntArray = new int[]{1}; assertTrue(ArrayUtils.isEmpty((int[]) null)); assertTrue(ArrayUtils.isEmpty(emptyIntArray)); assertFalse(ArrayUtils.isEmpty(notEmptyIntArray)); final short[] emptyShortArray = new short[]{}; final short[] notEmptyShortArray = new short[]{1}; assertTrue(ArrayUtils.isEmpty((short[]) null)); assertTrue(ArrayUtils.isEmpty(emptyShortArray)); assertFalse(ArrayUtils.isEmpty(notEmptyShortArray)); final char[] emptyCharArray = new char[]{}; final char[] notEmptyCharArray = new char[]{1}; assertTrue(ArrayUtils.isEmpty((char[]) null)); assertTrue(ArrayUtils.isEmpty(emptyCharArray)); assertFalse(ArrayUtils.isEmpty(notEmptyCharArray)); final byte[] emptyByteArray = new byte[]{}; final byte[] notEmptyByteArray = new byte[]{1}; assertTrue(ArrayUtils.isEmpty((byte[]) null)); assertTrue(ArrayUtils.isEmpty(emptyByteArray)); assertFalse(ArrayUtils.isEmpty(notEmptyByteArray)); final double[] emptyDoubleArray = new double[]{}; final double[] notEmptyDoubleArray = new double[]{1.0}; assertTrue(ArrayUtils.isEmpty((double[]) null)); assertTrue(ArrayUtils.isEmpty(emptyDoubleArray)); assertFalse(ArrayUtils.isEmpty(notEmptyDoubleArray)); final float[] emptyFloatArray = new float[]{}; final float[] notEmptyFloatArray = new float[]{1.0F}; assertTrue(ArrayUtils.isEmpty((float[]) null)); assertTrue(ArrayUtils.isEmpty(emptyFloatArray)); assertFalse(ArrayUtils.isEmpty(notEmptyFloatArray)); final boolean[] emptyBooleanArray = new boolean[]{}; final boolean[] notEmptyBooleanArray = new boolean[]{true}; assertTrue(ArrayUtils.isEmpty((boolean[]) null)); assertTrue(ArrayUtils.isEmpty(emptyBooleanArray)); assertFalse(ArrayUtils.isEmpty(notEmptyBooleanArray)); } /** * Test for {@link ArrayUtils#isNotEmpty(java.lang.Object[])}. */ @Test public void testIsNotEmptyObject() { final Object[] emptyArray = new Object[]{}; final Object[] notEmptyArray = new Object[]{new String("Value")}; assertFalse(ArrayUtils.isNotEmpty((Object[]) null)); assertFalse(ArrayUtils.isNotEmpty(emptyArray)); assertTrue(ArrayUtils.isNotEmpty(notEmptyArray)); } /** * Tests for {@link ArrayUtils#isNotEmpty(long[])}, * {@link ArrayUtils#isNotEmpty(int[])}, * {@link ArrayUtils#isNotEmpty(short[])}, * {@link ArrayUtils#isNotEmpty(char[])}, * {@link ArrayUtils#isNotEmpty(byte[])}, * {@link ArrayUtils#isNotEmpty(double[])}, * {@link ArrayUtils#isNotEmpty(float[])} and * {@link ArrayUtils#isNotEmpty(boolean[])}. */ @Test public void testIsNotEmptyPrimitives() { final long[] emptyLongArray = new long[]{}; final long[] notEmptyLongArray = new long[]{1L}; assertFalse(ArrayUtils.isNotEmpty((long[]) null)); assertFalse(ArrayUtils.isNotEmpty(emptyLongArray)); assertTrue(ArrayUtils.isNotEmpty(notEmptyLongArray)); final int[] emptyIntArray = new int[]{}; final int[] notEmptyIntArray = new int[]{1}; assertFalse(ArrayUtils.isNotEmpty((int[]) null)); assertFalse(ArrayUtils.isNotEmpty(emptyIntArray)); assertTrue(ArrayUtils.isNotEmpty(notEmptyIntArray)); final short[] emptyShortArray = new short[]{}; final short[] notEmptyShortArray = new short[]{1}; assertFalse(ArrayUtils.isNotEmpty((short[]) null)); assertFalse(ArrayUtils.isNotEmpty(emptyShortArray)); assertTrue(ArrayUtils.isNotEmpty(notEmptyShortArray)); final char[] emptyCharArray = new char[]{}; final char[] notEmptyCharArray = new char[]{1}; assertFalse(ArrayUtils.isNotEmpty((char[]) null)); assertFalse(ArrayUtils.isNotEmpty(emptyCharArray)); assertTrue(ArrayUtils.isNotEmpty(notEmptyCharArray)); final byte[] emptyByteArray = new byte[]{}; final byte[] notEmptyByteArray = new byte[]{1}; assertFalse(ArrayUtils.isNotEmpty((byte[]) null)); assertFalse(ArrayUtils.isNotEmpty(emptyByteArray)); assertTrue(ArrayUtils.isNotEmpty(notEmptyByteArray)); final double[] emptyDoubleArray = new double[]{}; final double[] notEmptyDoubleArray = new double[]{1.0}; assertFalse(ArrayUtils.isNotEmpty((double[]) null)); assertFalse(ArrayUtils.isNotEmpty(emptyDoubleArray)); assertTrue(ArrayUtils.isNotEmpty(notEmptyDoubleArray)); final float[] emptyFloatArray = new float[]{}; final float[] notEmptyFloatArray = new float[]{1.0F}; assertFalse(ArrayUtils.isNotEmpty((float[]) null)); assertFalse(ArrayUtils.isNotEmpty(emptyFloatArray)); assertTrue(ArrayUtils.isNotEmpty(notEmptyFloatArray)); final boolean[] emptyBooleanArray = new boolean[]{}; final boolean[] notEmptyBooleanArray = new boolean[]{true}; assertFalse(ArrayUtils.isNotEmpty((boolean[]) null)); assertFalse(ArrayUtils.isNotEmpty(emptyBooleanArray)); assertTrue(ArrayUtils.isNotEmpty(notEmptyBooleanArray)); } // ------------------------------------------------------------------------ @Test public void testGetLength() { assertEquals(0, ArrayUtils.getLength(null)); final Object[] emptyObjectArray = new Object[0]; final Object[] notEmptyObjectArray = new Object[]{"aValue"}; assertEquals(0, ArrayUtils.getLength(null)); assertEquals(0, ArrayUtils.getLength(emptyObjectArray)); assertEquals(1, ArrayUtils.getLength(notEmptyObjectArray)); final int[] emptyIntArray = new int[]{}; final int[] notEmptyIntArray = new int[]{1}; assertEquals(0, ArrayUtils.getLength(null)); assertEquals(0, ArrayUtils.getLength(emptyIntArray)); assertEquals(1, ArrayUtils.getLength(notEmptyIntArray)); final short[] emptyShortArray = new short[]{}; final short[] notEmptyShortArray = new short[]{1}; assertEquals(0, ArrayUtils.getLength(null)); assertEquals(0, ArrayUtils.getLength(emptyShortArray)); assertEquals(1, ArrayUtils.getLength(notEmptyShortArray)); final char[] emptyCharArray = new char[]{}; final char[] notEmptyCharArray = new char[]{1}; assertEquals(0, ArrayUtils.getLength(null)); assertEquals(0, ArrayUtils.getLength(emptyCharArray)); assertEquals(1, ArrayUtils.getLength(notEmptyCharArray)); final byte[] emptyByteArray = new byte[]{}; final byte[] notEmptyByteArray = new byte[]{1}; assertEquals(0, ArrayUtils.getLength(null)); assertEquals(0, ArrayUtils.getLength(emptyByteArray)); assertEquals(1, ArrayUtils.getLength(notEmptyByteArray)); final double[] emptyDoubleArray = new double[]{}; final double[] notEmptyDoubleArray = new double[]{1.0}; assertEquals(0, ArrayUtils.getLength(null)); assertEquals(0, ArrayUtils.getLength(emptyDoubleArray)); assertEquals(1, ArrayUtils.getLength(notEmptyDoubleArray)); final float[] emptyFloatArray = new float[]{}; final float[] notEmptyFloatArray = new float[]{1.0F}; assertEquals(0, ArrayUtils.getLength(null)); assertEquals(0, ArrayUtils.getLength(emptyFloatArray)); assertEquals(1, ArrayUtils.getLength(notEmptyFloatArray)); final boolean[] emptyBooleanArray = new boolean[]{}; final boolean[] notEmptyBooleanArray = new boolean[]{true}; assertEquals(0, ArrayUtils.getLength(null)); assertEquals(0, ArrayUtils.getLength(emptyBooleanArray)); assertEquals(1, ArrayUtils.getLength(notEmptyBooleanArray)); try { ArrayUtils.getLength("notAnArray"); fail("IllegalArgumentException should have been thrown"); } catch (final IllegalArgumentException e) { } } @Test public void testIsSorted() { Integer[] array = null; assertTrue(ArrayUtils.isSorted(array)); array = new Integer[]{1}; assertTrue(ArrayUtils.isSorted(array)); array = new Integer[]{1, 2, 3}; assertTrue(ArrayUtils.isSorted(array)); array = new Integer[]{1, 3, 2}; assertFalse(ArrayUtils.isSorted(array)); } @Test public void testIsSortedComparator() { final Comparator c = new Comparator() { @Override public int compare(final Integer o1, final Integer o2) { return o2.compareTo(o1); } }; Integer[] array = null; assertTrue(ArrayUtils.isSorted(array, c)); array = new Integer[]{1}; assertTrue(ArrayUtils.isSorted(array, c)); array = new Integer[]{3, 2, 1}; assertTrue(ArrayUtils.isSorted(array, c)); array = new Integer[]{1, 3, 2}; assertFalse(ArrayUtils.isSorted(array, c)); } @Test(expected = IllegalArgumentException.class) public void testIsSortedNullComparator() throws Exception { ArrayUtils.isSorted(null, null); } @Test public void testIsSortedInt() { int[] array = null; assertTrue(ArrayUtils.isSorted(array)); array = new int[]{1}; assertTrue(ArrayUtils.isSorted(array)); array = new int[]{1, 2, 3}; assertTrue(ArrayUtils.isSorted(array)); array = new int[]{1, 3, 2}; assertFalse(ArrayUtils.isSorted(array)); } @Test public void testIsSortedFloat() { float[] array = null; assertTrue(ArrayUtils.isSorted(array)); array = new float[]{0f}; assertTrue(ArrayUtils.isSorted(array)); array = new float[]{-1f, 0f, 0.1f, 0.2f}; assertTrue(ArrayUtils.isSorted(array)); array = new float[]{-1f, 0.2f, 0.1f, 0f}; assertFalse(ArrayUtils.isSorted(array)); } @Test public void testIsSortedLong() { long[] array = null; assertTrue(ArrayUtils.isSorted(array)); array = new long[]{0L}; assertTrue(ArrayUtils.isSorted(array)); array = new long[]{-1L, 0L, 1L}; assertTrue(ArrayUtils.isSorted(array)); array = new long[]{-1L, 1L, 0L}; assertFalse(ArrayUtils.isSorted(array)); } @Test public void testIsSortedDouble() { double[] array = null; assertTrue(ArrayUtils.isSorted(array)); array = new double[]{0.0}; assertTrue(ArrayUtils.isSorted(array)); array = new double[]{-1.0, 0.0, 0.1, 0.2}; assertTrue(ArrayUtils.isSorted(array)); array = new double[]{-1.0, 0.2, 0.1, 0.0}; assertFalse(ArrayUtils.isSorted(array)); } @Test public void testIsSortedChar() { char[] array = null; assertTrue(ArrayUtils.isSorted(array)); array = new char[]{'a'}; assertTrue(ArrayUtils.isSorted(array)); array = new char[]{'a', 'b', 'c'}; assertTrue(ArrayUtils.isSorted(array)); array = new char[]{'a', 'c', 'b'}; assertFalse(ArrayUtils.isSorted(array)); } @Test public void testIsSortedByte() { byte[] array = null; assertTrue(ArrayUtils.isSorted(array)); array = new byte[]{0x10}; assertTrue(ArrayUtils.isSorted(array)); array = new byte[]{0x10, 0x20, 0x30}; assertTrue(ArrayUtils.isSorted(array)); array = new byte[]{0x10, 0x30, 0x20}; assertFalse(ArrayUtils.isSorted(array)); } @Test public void testIsSortedShort() { short[] array = null; assertTrue(ArrayUtils.isSorted(array)); array = new short[]{0}; assertTrue(ArrayUtils.isSorted(array)); array = new short[]{-1, 0, 1}; assertTrue(ArrayUtils.isSorted(array)); array = new short[]{-1, 1, 0}; assertFalse(ArrayUtils.isSorted(array)); } @Test public void testIsSortedBool() { boolean[] array = null; assertTrue(ArrayUtils.isSorted(array)); array = new boolean[]{true}; assertTrue(ArrayUtils.isSorted(array)); array = new boolean[]{false, true}; assertTrue(ArrayUtils.isSorted(array)); array = new boolean[]{true, false}; assertFalse(ArrayUtils.isSorted(array)); } @Test public void testCreatePrimitiveArray() { assertNull(ArrayUtils.toPrimitive((Object[]) null)); assertArrayEquals(new int[]{}, ArrayUtils.toPrimitive(new Integer[]{})); assertArrayEquals(new short[]{2}, ArrayUtils.toPrimitive(new Short[]{2})); assertArrayEquals(new long[]{2, 3}, ArrayUtils.toPrimitive(new Long[]{2L, 3L})); assertArrayEquals(new float[]{3.14f}, ArrayUtils.toPrimitive(new Float[]{3.14f}), 0.1f); assertArrayEquals(new double[]{2.718}, ArrayUtils.toPrimitive(new Double[]{2.718}), 0.1); } @Test public void testToStringArray_array() { assertNull(ArrayUtils.toStringArray(null)); assertArrayEquals(new String[0], ArrayUtils.toStringArray(new Object[0])); final Object[] array = new Object[]{1, 2, 3, "array", "test"}; assertArrayEquals(new String[]{"1", "2", "3", "array", "test"}, ArrayUtils.toStringArray(array)); try { ArrayUtils.toStringArray(new Object[]{null}); fail("NullPointerException expected!"); } catch (final NullPointerException expected) { } } @Test public void testToStringArray_array_string() { assertNull(ArrayUtils.toStringArray(null, "")); assertArrayEquals(new String[0], ArrayUtils.toStringArray(new Object[0], "")); final Object[] array = new Object[]{1, null, "test"}; assertArrayEquals(new String[]{"1", "valueForNullElements", "test"}, ArrayUtils.toStringArray(array, "valueForNullElements")); } @Test public void testShuffle() { final String[] array1 = new String[]{"1", "2", "3", "4", "5", "6", "7", "8", "9", "10"}; final String[] array2 = ArrayUtils.clone(array1); ArrayUtils.shuffle(array1, new Random(SEED)); assertFalse(Arrays.equals(array1, array2)); for (final String element : array2) { assertTrue("Element " + element + " not found", ArrayUtils.contains(array1, element)); } } @Test public void testShuffleBoolean() { final boolean[] array1 = new boolean[]{true, false, true, true, false, false, true, false, false, true}; final boolean[] array2 = ArrayUtils.clone(array1); ArrayUtils.shuffle(array1, new Random(SEED)); assertFalse(Arrays.equals(array1, array2)); assertEquals(5, ArrayUtils.removeAllOccurences(array1, true).length); } @Test public void testShuffleByte() { final byte[] array1 = new byte[]{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}; final byte[] array2 = ArrayUtils.clone(array1); ArrayUtils.shuffle(array1, new Random(SEED)); assertFalse(Arrays.equals(array1, array2)); for (final byte element : array2) { assertTrue("Element " + element + " not found", ArrayUtils.contains(array1, element)); } } @Test public void testShuffleChar() { final char[] array1 = new char[]{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}; final char[] array2 = ArrayUtils.clone(array1); ArrayUtils.shuffle(array1, new Random(SEED)); assertFalse(Arrays.equals(array1, array2)); for (final char element : array2) { assertTrue("Element " + element + " not found", ArrayUtils.contains(array1, element)); } } @Test public void testShuffleShort() { final short[] array1 = new short[]{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}; final short[] array2 = ArrayUtils.clone(array1); ArrayUtils.shuffle(array1, new Random(SEED)); assertFalse(Arrays.equals(array1, array2)); for (final short element : array2) { assertTrue("Element " + element + " not found", ArrayUtils.contains(array1, element)); } } @Test public void testShuffleInt() { final int[] array1 = new int[]{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}; final int[] array2 = ArrayUtils.clone(array1); ArrayUtils.shuffle(array1, new Random(SEED)); assertFalse(Arrays.equals(array1, array2)); for (final int element : array2) { assertTrue("Element " + element + " not found", ArrayUtils.contains(array1, element)); } } @Test public void testShuffleLong() { final long[] array1 = new long[]{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}; final long[] array2 = ArrayUtils.clone(array1); ArrayUtils.shuffle(array1, new Random(SEED)); assertFalse(Arrays.equals(array1, array2)); for (final long element : array2) { assertTrue("Element " + element + " not found", ArrayUtils.contains(array1, element)); } } @Test public void testShuffleFloat() { final float[] array1 = new float[]{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}; final float[] array2 = ArrayUtils.clone(array1); ArrayUtils.shuffle(array1, new Random(SEED)); assertFalse(Arrays.equals(array1, array2)); for (final float element : array2) { assertTrue("Element " + element + " not found", ArrayUtils.contains(array1, element)); } } @Test public void testShuffleDouble() { final double[] array1 = new double[]{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}; final double[] array2 = ArrayUtils.clone(array1); ArrayUtils.shuffle(array1, new Random(SEED)); assertFalse(Arrays.equals(array1, array2)); for (final double element : array2) { assertTrue("Element " + element + " not found", ArrayUtils.contains(array1, element)); } } @Test public void testIsArrayIndexValid(){ assertFalse(ArrayUtils.isArrayIndexValid(null, 0)); String[] array = new String[1]; //too big assertFalse(ArrayUtils.isArrayIndexValid(array, 1)); //negative index assertFalse(ArrayUtils.isArrayIndexValid(array, -1)); //good to go assertTrue(ArrayUtils.isArrayIndexValid(array, 0)); } }