/* * 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.apache.commons.lang3.JavaVersion.JAVA_1_5; 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.Method; import java.lang.reflect.Modifier; import java.util.ArrayList; import java.util.Arrays; import java.util.Collections; import java.util.HashSet; import java.util.Iterator; import java.util.List; import java.util.Map; import java.util.Set; import org.apache.commons.lang3.ClassUtils.Interfaces; import org.apache.commons.lang3.reflect.testbed.GenericConsumer; import org.apache.commons.lang3.reflect.testbed.GenericParent; import org.apache.commons.lang3.reflect.testbed.StringParameterizedChild; import org.junit.Test; /** * Unit tests {@link org.apache.commons.lang3.ClassUtils}. * * @version $Id: ClassUtilsTest.java 1510298 2013-08-04 18:36:17Z mbenson $ */ @SuppressWarnings("boxing") // JUnit4 does not support primitive equality testing apart from long public class ClassUtilsTest { private static class Inner { private class DeeplyNested{} } //----------------------------------------------------------------------- @Test public void testConstructor() { assertNotNull(new ClassUtils()); final Constructor[] cons = ClassUtils.class.getDeclaredConstructors(); assertEquals(1, cons.length); assertTrue(Modifier.isPublic(cons[0].getModifiers())); assertTrue(Modifier.isPublic(ClassUtils.class.getModifiers())); assertFalse(Modifier.isFinal(ClassUtils.class.getModifiers())); } // ------------------------------------------------------------------------- @Test public void test_getShortClassName_Object() { assertEquals("ClassUtils", ClassUtils.getShortClassName(new ClassUtils(), "")); assertEquals("ClassUtilsTest.Inner", ClassUtils.getShortClassName(new Inner(), "")); assertEquals("String", ClassUtils.getShortClassName("hello", "")); assertEquals("", ClassUtils.getShortClassName(null, "")); // Inner types class Named extends Object {} assertEquals("ClassUtilsTest.1", ClassUtils.getShortClassName(new Object(){}, "")); assertEquals("ClassUtilsTest.1Named", ClassUtils.getShortClassName(new Named(), "")); assertEquals("ClassUtilsTest.Inner", ClassUtils.getShortClassName(new Inner(), "")); } @Test public void test_getShortClassName_Class() { assertEquals("ClassUtils", ClassUtils.getShortClassName(ClassUtils.class)); assertEquals("Map.Entry", ClassUtils.getShortClassName(Map.Entry.class)); assertEquals("", ClassUtils.getShortClassName((Class) null)); // LANG-535 assertEquals("String[]", ClassUtils.getShortClassName(String[].class)); assertEquals("Map.Entry[]", ClassUtils.getShortClassName(Map.Entry[].class)); // Primitives assertEquals("boolean", ClassUtils.getShortClassName(boolean.class)); assertEquals("byte", ClassUtils.getShortClassName(byte.class)); assertEquals("char", ClassUtils.getShortClassName(char.class)); assertEquals("short", ClassUtils.getShortClassName(short.class)); assertEquals("int", ClassUtils.getShortClassName(int.class)); assertEquals("long", ClassUtils.getShortClassName(long.class)); assertEquals("float", ClassUtils.getShortClassName(float.class)); assertEquals("double", ClassUtils.getShortClassName(double.class)); // Primitive Arrays assertEquals("boolean[]", ClassUtils.getShortClassName(boolean[].class)); assertEquals("byte[]", ClassUtils.getShortClassName(byte[].class)); assertEquals("char[]", ClassUtils.getShortClassName(char[].class)); assertEquals("short[]", ClassUtils.getShortClassName(short[].class)); assertEquals("int[]", ClassUtils.getShortClassName(int[].class)); assertEquals("long[]", ClassUtils.getShortClassName(long[].class)); assertEquals("float[]", ClassUtils.getShortClassName(float[].class)); assertEquals("double[]", ClassUtils.getShortClassName(double[].class)); // Arrays of arrays of ... assertEquals("String[][]", ClassUtils.getShortClassName(String[][].class)); assertEquals("String[][][]", ClassUtils.getShortClassName(String[][][].class)); assertEquals("String[][][][]", ClassUtils.getShortClassName(String[][][][].class)); // Inner types class Named extends Object {} assertEquals("ClassUtilsTest.2", ClassUtils.getShortClassName(new Object(){}.getClass())); assertEquals("ClassUtilsTest.2Named", ClassUtils.getShortClassName(Named.class)); assertEquals("ClassUtilsTest.Inner", ClassUtils.getShortClassName(Inner.class)); } @Test public void test_getShortClassName_String() { assertEquals("ClassUtils", ClassUtils.getShortClassName(ClassUtils.class.getName())); assertEquals("Map.Entry", ClassUtils.getShortClassName(Map.Entry.class.getName())); assertEquals("", ClassUtils.getShortClassName((String) null)); assertEquals("", ClassUtils.getShortClassName("")); } @Test public void test_getSimpleName_Class() { assertEquals("ClassUtils", ClassUtils.getSimpleName(ClassUtils.class)); assertEquals("Entry", ClassUtils.getSimpleName(Map.Entry.class)); assertEquals("", ClassUtils.getSimpleName((Class) null)); // LANG-535 assertEquals("String[]", ClassUtils.getSimpleName(String[].class)); assertEquals("Entry[]", ClassUtils.getSimpleName(Map.Entry[].class)); // Primitives assertEquals("boolean", ClassUtils.getSimpleName(boolean.class)); assertEquals("byte", ClassUtils.getSimpleName(byte.class)); assertEquals("char", ClassUtils.getSimpleName(char.class)); assertEquals("short", ClassUtils.getSimpleName(short.class)); assertEquals("int", ClassUtils.getSimpleName(int.class)); assertEquals("long", ClassUtils.getSimpleName(long.class)); assertEquals("float", ClassUtils.getSimpleName(float.class)); assertEquals("double", ClassUtils.getSimpleName(double.class)); // Primitive Arrays assertEquals("boolean[]", ClassUtils.getSimpleName(boolean[].class)); assertEquals("byte[]", ClassUtils.getSimpleName(byte[].class)); assertEquals("char[]", ClassUtils.getSimpleName(char[].class)); assertEquals("short[]", ClassUtils.getSimpleName(short[].class)); assertEquals("int[]", ClassUtils.getSimpleName(int[].class)); assertEquals("long[]", ClassUtils.getSimpleName(long[].class)); assertEquals("float[]", ClassUtils.getSimpleName(float[].class)); assertEquals("double[]", ClassUtils.getSimpleName(double[].class)); // Arrays of arrays of ... assertEquals("String[][]", ClassUtils.getSimpleName(String[][].class)); assertEquals("String[][][]", ClassUtils.getSimpleName(String[][][].class)); assertEquals("String[][][][]", ClassUtils.getSimpleName(String[][][][].class)); // On-the-fly types class Named extends Object {} assertEquals("", ClassUtils.getSimpleName(new Object(){}.getClass())); assertEquals("Named", ClassUtils.getSimpleName(Named.class)); } @Test public void test_getSimpleName_Object() { assertEquals("ClassUtils", ClassUtils.getSimpleName(new ClassUtils(), "")); assertEquals("Inner", ClassUtils.getSimpleName(new Inner(), "")); assertEquals("String", ClassUtils.getSimpleName("hello", "")); assertEquals("", ClassUtils.getSimpleName(null, "")); } // ------------------------------------------------------------------------- @Test public void test_getPackageName_Object() { assertEquals("org.apache.commons.lang3", ClassUtils.getPackageName(new ClassUtils(), "")); assertEquals("org.apache.commons.lang3", ClassUtils.getPackageName(new Inner(), "")); assertEquals("", ClassUtils.getPackageName(null, "")); } @Test public void test_getPackageName_Class() { assertEquals("java.lang", ClassUtils.getPackageName(String.class)); assertEquals("java.util", ClassUtils.getPackageName(Map.Entry.class)); assertEquals("", ClassUtils.getPackageName((Class)null)); // LANG-535 assertEquals("java.lang", ClassUtils.getPackageName(String[].class)); // Primitive Arrays assertEquals("", ClassUtils.getPackageName(boolean[].class)); assertEquals("", ClassUtils.getPackageName(byte[].class)); assertEquals("", ClassUtils.getPackageName(char[].class)); assertEquals("", ClassUtils.getPackageName(short[].class)); assertEquals("", ClassUtils.getPackageName(int[].class)); assertEquals("", ClassUtils.getPackageName(long[].class)); assertEquals("", ClassUtils.getPackageName(float[].class)); assertEquals("", ClassUtils.getPackageName(double[].class)); // Arrays of arrays of ... assertEquals("java.lang", ClassUtils.getPackageName(String[][].class)); assertEquals("java.lang", ClassUtils.getPackageName(String[][][].class)); assertEquals("java.lang", ClassUtils.getPackageName(String[][][][].class)); // On-the-fly types class Named extends Object {} assertEquals("org.apache.commons.lang3", ClassUtils.getPackageName(new Object(){}.getClass())); assertEquals("org.apache.commons.lang3", ClassUtils.getPackageName(Named.class)); } @Test public void test_getPackageName_String() { assertEquals("org.apache.commons.lang3", ClassUtils.getPackageName(ClassUtils.class.getName())); assertEquals("java.util", ClassUtils.getPackageName(Map.Entry.class.getName())); assertEquals("", ClassUtils.getPackageName((String)null)); assertEquals("", ClassUtils.getPackageName("")); } // ------------------------------------------------------------------------- @Test public void test_getAllSuperclasses_Class() { final List list = ClassUtils.getAllSuperclasses(CY.class); assertEquals(2, list.size()); assertEquals(CX.class, list.get(0)); assertEquals(Object.class, list.get(1)); assertEquals(null, ClassUtils.getAllSuperclasses(null)); } @Test public void test_getAllInterfaces_Class() { final List list = ClassUtils.getAllInterfaces(CY.class); assertEquals(6, list.size()); assertEquals(IB.class, list.get(0)); assertEquals(IC.class, list.get(1)); assertEquals(ID.class, list.get(2)); assertEquals(IE.class, list.get(3)); assertEquals(IF.class, list.get(4)); assertEquals(IA.class, list.get(5)); assertEquals(null, ClassUtils.getAllInterfaces(null)); } private static interface IA { } private static interface IB { } private static interface IC extends ID, IE { } private static interface ID { } private static interface IE extends IF { } private static interface IF { } private static class CX implements IB, IA, IE { } private static class CY extends CX implements IB, IC { } // ------------------------------------------------------------------------- @Test public void test_convertClassNamesToClasses_List() { final List list = new ArrayList(); List> result = ClassUtils.convertClassNamesToClasses(list); assertEquals(0, result.size()); list.add("java.lang.String"); list.add("java.lang.xxx"); list.add("java.lang.Object"); result = ClassUtils.convertClassNamesToClasses(list); assertEquals(3, result.size()); assertEquals(String.class, result.get(0)); assertEquals(null, result.get(1)); assertEquals(Object.class, result.get(2)); @SuppressWarnings("unchecked") // test what happens when non-generic code adds wrong type of element final List olist = (List)(List)list; olist.add(new Object()); try { ClassUtils.convertClassNamesToClasses(list); fail("Should not have been able to convert list"); } catch (final ClassCastException expected) {} assertEquals(null, ClassUtils.convertClassNamesToClasses(null)); } @Test public void test_convertClassesToClassNames_List() { final List> list = new ArrayList>(); List result = ClassUtils.convertClassesToClassNames(list); assertEquals(0, result.size()); list.add(String.class); list.add(null); list.add(Object.class); result = ClassUtils.convertClassesToClassNames(list); assertEquals(3, result.size()); assertEquals("java.lang.String", result.get(0)); assertEquals(null, result.get(1)); assertEquals("java.lang.Object", result.get(2)); @SuppressWarnings("unchecked") // test what happens when non-generic code adds wrong type of element final List olist = (List)(List)list; olist.add(new Object()); try { ClassUtils.convertClassesToClassNames(list); fail("Should not have been able to convert list"); } catch (final ClassCastException expected) {} assertEquals(null, ClassUtils.convertClassesToClassNames(null)); } // ------------------------------------------------------------------------- @Test public void test_isInnerClass_Class() { assertTrue(ClassUtils.isInnerClass(Inner.class)); assertTrue(ClassUtils.isInnerClass(Map.Entry.class)); assertTrue(ClassUtils.isInnerClass(new Cloneable() { }.getClass())); assertFalse(ClassUtils.isInnerClass(this.getClass())); assertFalse(ClassUtils.isInnerClass(String.class)); assertFalse(ClassUtils.isInnerClass(null)); } // ------------------------------------------------------------------------- @Test public void test_isAssignable_ClassArray_ClassArray() throws Exception { final Class[] array2 = new Class[] {Object.class, Object.class}; final Class[] array1 = new Class[] {Object.class}; final Class[] array1s = new Class[] {String.class}; final Class[] array0 = new Class[] {}; final Class[] arrayPrimitives = { Integer.TYPE, Boolean.TYPE }; final Class[] arrayWrappers = { Integer.class, Boolean.class }; assertFalse(ClassUtils.isAssignable(array1, array2)); assertFalse(ClassUtils.isAssignable(null, array2)); assertTrue(ClassUtils.isAssignable(null, array0)); assertTrue(ClassUtils.isAssignable(array0, array0)); // assertTrue(ClassUtils.isAssignable(array0, null)); assertTrue(ClassUtils.isAssignable(array0, (Class[]) null)); // explicit cast to avoid warning assertTrue(ClassUtils.isAssignable((Class[]) null, (Class[]) null)); assertFalse(ClassUtils.isAssignable(array1, array1s)); assertTrue(ClassUtils.isAssignable(array1s, array1s)); assertTrue(ClassUtils.isAssignable(array1s, array1)); final boolean autoboxing = SystemUtils.isJavaVersionAtLeast(JAVA_1_5); assertEquals(autoboxing, ClassUtils.isAssignable(arrayPrimitives, arrayWrappers)); assertEquals(autoboxing, ClassUtils.isAssignable(arrayWrappers, arrayPrimitives)); assertFalse(ClassUtils.isAssignable(arrayPrimitives, array1)); assertFalse(ClassUtils.isAssignable(arrayWrappers, array1)); assertEquals(autoboxing, ClassUtils.isAssignable(arrayPrimitives, array2)); assertTrue(ClassUtils.isAssignable(arrayWrappers, array2)); } @Test public void test_isAssignable_ClassArray_ClassArray_Autoboxing() throws Exception { final Class[] array2 = new Class[] {Object.class, Object.class}; final Class[] array1 = new Class[] {Object.class}; final Class[] array1s = new Class[] {String.class}; final Class[] array0 = new Class[] {}; final Class[] arrayPrimitives = { Integer.TYPE, Boolean.TYPE }; final Class[] arrayWrappers = { Integer.class, Boolean.class }; assertFalse(ClassUtils.isAssignable(array1, array2, true)); assertFalse(ClassUtils.isAssignable(null, array2, true)); assertTrue(ClassUtils.isAssignable(null, array0, true)); assertTrue(ClassUtils.isAssignable(array0, array0, true)); assertTrue(ClassUtils.isAssignable(array0, null, true)); assertTrue(ClassUtils.isAssignable((Class[]) null, (Class[]) null, true)); assertFalse(ClassUtils.isAssignable(array1, array1s, true)); assertTrue(ClassUtils.isAssignable(array1s, array1s, true)); assertTrue(ClassUtils.isAssignable(array1s, array1, true)); assertTrue(ClassUtils.isAssignable(arrayPrimitives, arrayWrappers, true)); assertTrue(ClassUtils.isAssignable(arrayWrappers, arrayPrimitives, true)); assertFalse(ClassUtils.isAssignable(arrayPrimitives, array1, true)); assertFalse(ClassUtils.isAssignable(arrayWrappers, array1, true)); assertTrue(ClassUtils.isAssignable(arrayPrimitives, array2, true)); assertTrue(ClassUtils.isAssignable(arrayWrappers, array2, true)); } @Test public void test_isAssignable_ClassArray_ClassArray_NoAutoboxing() throws Exception { final Class[] array2 = new Class[] {Object.class, Object.class}; final Class[] array1 = new Class[] {Object.class}; final Class[] array1s = new Class[] {String.class}; final Class[] array0 = new Class[] {}; final Class[] arrayPrimitives = { Integer.TYPE, Boolean.TYPE }; final Class[] arrayWrappers = { Integer.class, Boolean.class }; assertFalse(ClassUtils.isAssignable(array1, array2, false)); assertFalse(ClassUtils.isAssignable(null, array2, false)); assertTrue(ClassUtils.isAssignable(null, array0, false)); assertTrue(ClassUtils.isAssignable(array0, array0, false)); assertTrue(ClassUtils.isAssignable(array0, null, false)); assertTrue(ClassUtils.isAssignable((Class[]) null, (Class[]) null, false)); assertFalse(ClassUtils.isAssignable(array1, array1s, false)); assertTrue(ClassUtils.isAssignable(array1s, array1s, false)); assertTrue(ClassUtils.isAssignable(array1s, array1, false)); assertFalse(ClassUtils.isAssignable(arrayPrimitives, arrayWrappers, false)); assertFalse(ClassUtils.isAssignable(arrayWrappers, arrayPrimitives, false)); assertFalse(ClassUtils.isAssignable(arrayPrimitives, array1, false)); assertFalse(ClassUtils.isAssignable(arrayWrappers, array1, false)); assertTrue(ClassUtils.isAssignable(arrayWrappers, array2, false)); assertFalse(ClassUtils.isAssignable(arrayPrimitives, array2, false)); } @Test public void test_isAssignable() throws Exception { assertFalse(ClassUtils.isAssignable((Class) null, null)); assertFalse(ClassUtils.isAssignable(String.class, null)); assertTrue(ClassUtils.isAssignable(null, Object.class)); assertTrue(ClassUtils.isAssignable(null, Integer.class)); assertFalse(ClassUtils.isAssignable(null, Integer.TYPE)); assertTrue(ClassUtils.isAssignable(String.class, Object.class)); assertTrue(ClassUtils.isAssignable(String.class, String.class)); assertFalse(ClassUtils.isAssignable(Object.class, String.class)); final boolean autoboxing = SystemUtils.isJavaVersionAtLeast(JAVA_1_5); assertEquals(autoboxing, ClassUtils.isAssignable(Integer.TYPE, Integer.class)); assertEquals(autoboxing, ClassUtils.isAssignable(Integer.TYPE, Object.class)); assertEquals(autoboxing, ClassUtils.isAssignable(Integer.class, Integer.TYPE)); assertEquals(autoboxing, ClassUtils.isAssignable(Integer.class, Object.class)); assertTrue(ClassUtils.isAssignable(Integer.TYPE, Integer.TYPE)); assertTrue(ClassUtils.isAssignable(Integer.class, Integer.class)); assertEquals(autoboxing, ClassUtils.isAssignable(Boolean.TYPE, Boolean.class)); assertEquals(autoboxing, ClassUtils.isAssignable(Boolean.TYPE, Object.class)); assertEquals(autoboxing, ClassUtils.isAssignable(Boolean.class, Boolean.TYPE)); assertEquals(autoboxing, ClassUtils.isAssignable(Boolean.class, Object.class)); assertTrue(ClassUtils.isAssignable(Boolean.TYPE, Boolean.TYPE)); assertTrue(ClassUtils.isAssignable(Boolean.class, Boolean.class)); } @Test public void test_isAssignable_Autoboxing() throws Exception { assertFalse(ClassUtils.isAssignable((Class) null, null, true)); assertFalse(ClassUtils.isAssignable(String.class, null, true)); assertTrue(ClassUtils.isAssignable(null, Object.class, true)); assertTrue(ClassUtils.isAssignable(null, Integer.class, true)); assertFalse(ClassUtils.isAssignable(null, Integer.TYPE, true)); assertTrue(ClassUtils.isAssignable(String.class, Object.class, true)); assertTrue(ClassUtils.isAssignable(String.class, String.class, true)); assertFalse(ClassUtils.isAssignable(Object.class, String.class, true)); assertTrue(ClassUtils.isAssignable(Integer.TYPE, Integer.class, true)); assertTrue(ClassUtils.isAssignable(Integer.TYPE, Object.class, true)); assertTrue(ClassUtils.isAssignable(Integer.class, Integer.TYPE, true)); assertTrue(ClassUtils.isAssignable(Integer.class, Object.class, true)); assertTrue(ClassUtils.isAssignable(Integer.TYPE, Integer.TYPE, true)); assertTrue(ClassUtils.isAssignable(Integer.class, Integer.class, true)); assertTrue(ClassUtils.isAssignable(Boolean.TYPE, Boolean.class, true)); assertTrue(ClassUtils.isAssignable(Boolean.class, Boolean.TYPE, true)); assertTrue(ClassUtils.isAssignable(Boolean.class, Object.class, true)); assertTrue(ClassUtils.isAssignable(Boolean.TYPE, Boolean.TYPE, true)); assertTrue(ClassUtils.isAssignable(Boolean.class, Boolean.class, true)); } @Test public void test_isAssignable_NoAutoboxing() throws Exception { assertFalse(ClassUtils.isAssignable((Class) null, null, false)); assertFalse(ClassUtils.isAssignable(String.class, null, false)); assertTrue(ClassUtils.isAssignable(null, Object.class, false)); assertTrue(ClassUtils.isAssignable(null, Integer.class, false)); assertFalse(ClassUtils.isAssignable(null, Integer.TYPE, false)); assertTrue(ClassUtils.isAssignable(String.class, Object.class, false)); assertTrue(ClassUtils.isAssignable(String.class, String.class, false)); assertFalse(ClassUtils.isAssignable(Object.class, String.class, false)); assertFalse(ClassUtils.isAssignable(Integer.TYPE, Integer.class, false)); assertFalse(ClassUtils.isAssignable(Integer.TYPE, Object.class, false)); assertFalse(ClassUtils.isAssignable(Integer.class, Integer.TYPE, false)); assertTrue(ClassUtils.isAssignable(Integer.TYPE, Integer.TYPE, false)); assertTrue(ClassUtils.isAssignable(Integer.class, Integer.class, false)); assertFalse(ClassUtils.isAssignable(Boolean.TYPE, Boolean.class, false)); assertFalse(ClassUtils.isAssignable(Boolean.TYPE, Object.class, false)); assertFalse(ClassUtils.isAssignable(Boolean.class, Boolean.TYPE, false)); assertTrue(ClassUtils.isAssignable(Boolean.class, Object.class, false)); assertTrue(ClassUtils.isAssignable(Boolean.TYPE, Boolean.TYPE, false)); assertTrue(ClassUtils.isAssignable(Boolean.class, Boolean.class, false)); } @Test public void test_isAssignable_Widening() throws Exception { // test byte conversions assertFalse("byte -> char", ClassUtils.isAssignable(Byte.TYPE, Character.TYPE)); assertTrue("byte -> byte", ClassUtils.isAssignable(Byte.TYPE, Byte.TYPE)); assertTrue("byte -> short", ClassUtils.isAssignable(Byte.TYPE, Short.TYPE)); assertTrue("byte -> int", ClassUtils.isAssignable(Byte.TYPE, Integer.TYPE)); assertTrue("byte -> long", ClassUtils.isAssignable(Byte.TYPE, Long.TYPE)); assertTrue("byte -> float", ClassUtils.isAssignable(Byte.TYPE, Float.TYPE)); assertTrue("byte -> double", ClassUtils.isAssignable(Byte.TYPE, Double.TYPE)); assertFalse("byte -> boolean", ClassUtils.isAssignable(Byte.TYPE, Boolean.TYPE)); // test short conversions assertFalse("short -> char", ClassUtils.isAssignable(Short.TYPE, Character.TYPE)); assertFalse("short -> byte", ClassUtils.isAssignable(Short.TYPE, Byte.TYPE)); assertTrue("short -> short", ClassUtils.isAssignable(Short.TYPE, Short.TYPE)); assertTrue("short -> int", ClassUtils.isAssignable(Short.TYPE, Integer.TYPE)); assertTrue("short -> long", ClassUtils.isAssignable(Short.TYPE, Long.TYPE)); assertTrue("short -> float", ClassUtils.isAssignable(Short.TYPE, Float.TYPE)); assertTrue("short -> double", ClassUtils.isAssignable(Short.TYPE, Double.TYPE)); assertFalse("short -> boolean", ClassUtils.isAssignable(Short.TYPE, Boolean.TYPE)); // test char conversions assertTrue("char -> char", ClassUtils.isAssignable(Character.TYPE, Character.TYPE)); assertFalse("char -> byte", ClassUtils.isAssignable(Character.TYPE, Byte.TYPE)); assertFalse("char -> short", ClassUtils.isAssignable(Character.TYPE, Short.TYPE)); assertTrue("char -> int", ClassUtils.isAssignable(Character.TYPE, Integer.TYPE)); assertTrue("char -> long", ClassUtils.isAssignable(Character.TYPE, Long.TYPE)); assertTrue("char -> float", ClassUtils.isAssignable(Character.TYPE, Float.TYPE)); assertTrue("char -> double", ClassUtils.isAssignable(Character.TYPE, Double.TYPE)); assertFalse("char -> boolean", ClassUtils.isAssignable(Character.TYPE, Boolean.TYPE)); // test int conversions assertFalse("int -> char", ClassUtils.isAssignable(Integer.TYPE, Character.TYPE)); assertFalse("int -> byte", ClassUtils.isAssignable(Integer.TYPE, Byte.TYPE)); assertFalse("int -> short", ClassUtils.isAssignable(Integer.TYPE, Short.TYPE)); assertTrue("int -> int", ClassUtils.isAssignable(Integer.TYPE, Integer.TYPE)); assertTrue("int -> long", ClassUtils.isAssignable(Integer.TYPE, Long.TYPE)); assertTrue("int -> float", ClassUtils.isAssignable(Integer.TYPE, Float.TYPE)); assertTrue("int -> double", ClassUtils.isAssignable(Integer.TYPE, Double.TYPE)); assertFalse("int -> boolean", ClassUtils.isAssignable(Integer.TYPE, Boolean.TYPE)); // test long conversions assertFalse("long -> char", ClassUtils.isAssignable(Long.TYPE, Character.TYPE)); assertFalse("long -> byte", ClassUtils.isAssignable(Long.TYPE, Byte.TYPE)); assertFalse("long -> short", ClassUtils.isAssignable(Long.TYPE, Short.TYPE)); assertFalse("long -> int", ClassUtils.isAssignable(Long.TYPE, Integer.TYPE)); assertTrue("long -> long", ClassUtils.isAssignable(Long.TYPE, Long.TYPE)); assertTrue("long -> float", ClassUtils.isAssignable(Long.TYPE, Float.TYPE)); assertTrue("long -> double", ClassUtils.isAssignable(Long.TYPE, Double.TYPE)); assertFalse("long -> boolean", ClassUtils.isAssignable(Long.TYPE, Boolean.TYPE)); // test float conversions assertFalse("float -> char", ClassUtils.isAssignable(Float.TYPE, Character.TYPE)); assertFalse("float -> byte", ClassUtils.isAssignable(Float.TYPE, Byte.TYPE)); assertFalse("float -> short", ClassUtils.isAssignable(Float.TYPE, Short.TYPE)); assertFalse("float -> int", ClassUtils.isAssignable(Float.TYPE, Integer.TYPE)); assertFalse("float -> long", ClassUtils.isAssignable(Float.TYPE, Long.TYPE)); assertTrue("float -> float", ClassUtils.isAssignable(Float.TYPE, Float.TYPE)); assertTrue("float -> double", ClassUtils.isAssignable(Float.TYPE, Double.TYPE)); assertFalse("float -> boolean", ClassUtils.isAssignable(Float.TYPE, Boolean.TYPE)); // test double conversions assertFalse("double -> char", ClassUtils.isAssignable(Double.TYPE, Character.TYPE)); assertFalse("double -> byte", ClassUtils.isAssignable(Double.TYPE, Byte.TYPE)); assertFalse("double -> short", ClassUtils.isAssignable(Double.TYPE, Short.TYPE)); assertFalse("double -> int", ClassUtils.isAssignable(Double.TYPE, Integer.TYPE)); assertFalse("double -> long", ClassUtils.isAssignable(Double.TYPE, Long.TYPE)); assertFalse("double -> float", ClassUtils.isAssignable(Double.TYPE, Float.TYPE)); assertTrue("double -> double", ClassUtils.isAssignable(Double.TYPE, Double.TYPE)); assertFalse("double -> boolean", ClassUtils.isAssignable(Double.TYPE, Boolean.TYPE)); // test boolean conversions assertFalse("boolean -> char", ClassUtils.isAssignable(Boolean.TYPE, Character.TYPE)); assertFalse("boolean -> byte", ClassUtils.isAssignable(Boolean.TYPE, Byte.TYPE)); assertFalse("boolean -> short", ClassUtils.isAssignable(Boolean.TYPE, Short.TYPE)); assertFalse("boolean -> int", ClassUtils.isAssignable(Boolean.TYPE, Integer.TYPE)); assertFalse("boolean -> long", ClassUtils.isAssignable(Boolean.TYPE, Long.TYPE)); assertFalse("boolean -> float", ClassUtils.isAssignable(Boolean.TYPE, Float.TYPE)); assertFalse("boolean -> double", ClassUtils.isAssignable(Boolean.TYPE, Double.TYPE)); assertTrue("boolean -> boolean", ClassUtils.isAssignable(Boolean.TYPE, Boolean.TYPE)); } @Test public void test_isAssignable_DefaultUnboxing_Widening() throws Exception { final boolean autoboxing = SystemUtils.isJavaVersionAtLeast(JAVA_1_5); // test byte conversions assertFalse("byte -> char", ClassUtils.isAssignable(Byte.class, Character.TYPE)); assertEquals("byte -> byte", autoboxing, ClassUtils.isAssignable(Byte.class, Byte.TYPE)); assertEquals("byte -> short", autoboxing, ClassUtils.isAssignable(Byte.class, Short.TYPE)); assertEquals("byte -> int", autoboxing, ClassUtils.isAssignable(Byte.class, Integer.TYPE)); assertEquals("byte -> long", autoboxing, ClassUtils.isAssignable(Byte.class, Long.TYPE)); assertEquals("byte -> float", autoboxing, ClassUtils.isAssignable(Byte.class, Float.TYPE)); assertEquals("byte -> double", autoboxing, ClassUtils.isAssignable(Byte.class, Double.TYPE)); assertFalse("byte -> boolean", ClassUtils.isAssignable(Byte.class, Boolean.TYPE)); // test short conversions assertFalse("short -> char", ClassUtils.isAssignable(Short.class, Character.TYPE)); assertFalse("short -> byte", ClassUtils.isAssignable(Short.class, Byte.TYPE)); assertEquals("short -> short", autoboxing, ClassUtils.isAssignable(Short.class, Short.TYPE)); assertEquals("short -> int", autoboxing, ClassUtils.isAssignable(Short.class, Integer.TYPE)); assertEquals("short -> long", autoboxing, ClassUtils.isAssignable(Short.class, Long.TYPE)); assertEquals("short -> float", autoboxing, ClassUtils.isAssignable(Short.class, Float.TYPE)); assertEquals("short -> double", autoboxing, ClassUtils.isAssignable(Short.class, Double.TYPE)); assertFalse("short -> boolean", ClassUtils.isAssignable(Short.class, Boolean.TYPE)); // test char conversions assertEquals("char -> char", autoboxing, ClassUtils.isAssignable(Character.class, Character.TYPE)); assertFalse("char -> byte", ClassUtils.isAssignable(Character.class, Byte.TYPE)); assertFalse("char -> short", ClassUtils.isAssignable(Character.class, Short.TYPE)); assertEquals("char -> int", autoboxing, ClassUtils.isAssignable(Character.class, Integer.TYPE)); assertEquals("char -> long", autoboxing, ClassUtils.isAssignable(Character.class, Long.TYPE)); assertEquals("char -> float", autoboxing, ClassUtils.isAssignable(Character.class, Float.TYPE)); assertEquals("char -> double", autoboxing, ClassUtils.isAssignable(Character.class, Double.TYPE)); assertFalse("char -> boolean", ClassUtils.isAssignable(Character.class, Boolean.TYPE)); // test int conversions assertFalse("int -> char", ClassUtils.isAssignable(Integer.class, Character.TYPE)); assertFalse("int -> byte", ClassUtils.isAssignable(Integer.class, Byte.TYPE)); assertFalse("int -> short", ClassUtils.isAssignable(Integer.class, Short.TYPE)); assertEquals("int -> int", autoboxing, ClassUtils.isAssignable(Integer.class, Integer.TYPE)); assertEquals("int -> long", autoboxing, ClassUtils.isAssignable(Integer.class, Long.TYPE)); assertEquals("int -> float", autoboxing, ClassUtils.isAssignable(Integer.class, Float.TYPE)); assertEquals("int -> double", autoboxing, ClassUtils.isAssignable(Integer.class, Double.TYPE)); assertFalse("int -> boolean", ClassUtils.isAssignable(Integer.class, Boolean.TYPE)); // test long conversions assertFalse("long -> char", ClassUtils.isAssignable(Long.class, Character.TYPE)); assertFalse("long -> byte", ClassUtils.isAssignable(Long.class, Byte.TYPE)); assertFalse("long -> short", ClassUtils.isAssignable(Long.class, Short.TYPE)); assertFalse("long -> int", ClassUtils.isAssignable(Long.class, Integer.TYPE)); assertEquals("long -> long", autoboxing, ClassUtils.isAssignable(Long.class, Long.TYPE)); assertEquals("long -> float", autoboxing, ClassUtils.isAssignable(Long.class, Float.TYPE)); assertEquals("long -> double", autoboxing, ClassUtils.isAssignable(Long.class, Double.TYPE)); assertFalse("long -> boolean", ClassUtils.isAssignable(Long.class, Boolean.TYPE)); // test float conversions assertFalse("float -> char", ClassUtils.isAssignable(Float.class, Character.TYPE)); assertFalse("float -> byte", ClassUtils.isAssignable(Float.class, Byte.TYPE)); assertFalse("float -> short", ClassUtils.isAssignable(Float.class, Short.TYPE)); assertFalse("float -> int", ClassUtils.isAssignable(Float.class, Integer.TYPE)); assertFalse("float -> long", ClassUtils.isAssignable(Float.class, Long.TYPE)); assertEquals("float -> float", autoboxing, ClassUtils.isAssignable(Float.class, Float.TYPE)); assertEquals("float -> double", autoboxing, ClassUtils.isAssignable(Float.class, Double.TYPE)); assertFalse("float -> boolean", ClassUtils.isAssignable(Float.class, Boolean.TYPE)); // test double conversions assertFalse("double -> char", ClassUtils.isAssignable(Double.class, Character.TYPE)); assertFalse("double -> byte", ClassUtils.isAssignable(Double.class, Byte.TYPE)); assertFalse("double -> short", ClassUtils.isAssignable(Double.class, Short.TYPE)); assertFalse("double -> int", ClassUtils.isAssignable(Double.class, Integer.TYPE)); assertFalse("double -> long", ClassUtils.isAssignable(Double.class, Long.TYPE)); assertFalse("double -> float", ClassUtils.isAssignable(Double.class, Float.TYPE)); assertEquals("double -> double", autoboxing, ClassUtils.isAssignable(Double.class, Double.TYPE)); assertFalse("double -> boolean", ClassUtils.isAssignable(Double.class, Boolean.TYPE)); // test boolean conversions assertFalse("boolean -> char", ClassUtils.isAssignable(Boolean.class, Character.TYPE)); assertFalse("boolean -> byte", ClassUtils.isAssignable(Boolean.class, Byte.TYPE)); assertFalse("boolean -> short", ClassUtils.isAssignable(Boolean.class, Short.TYPE)); assertFalse("boolean -> int", ClassUtils.isAssignable(Boolean.class, Integer.TYPE)); assertFalse("boolean -> long", ClassUtils.isAssignable(Boolean.class, Long.TYPE)); assertFalse("boolean -> float", ClassUtils.isAssignable(Boolean.class, Float.TYPE)); assertFalse("boolean -> double", ClassUtils.isAssignable(Boolean.class, Double.TYPE)); assertEquals("boolean -> boolean", autoboxing, ClassUtils.isAssignable(Boolean.class, Boolean.TYPE)); } @Test public void test_isAssignable_Unboxing_Widening() throws Exception { // test byte conversions assertFalse("byte -> char", ClassUtils.isAssignable(Byte.class, Character.TYPE, true)); assertTrue("byte -> byte", ClassUtils.isAssignable(Byte.class, Byte.TYPE, true)); assertTrue("byte -> short", ClassUtils.isAssignable(Byte.class, Short.TYPE, true)); assertTrue("byte -> int", ClassUtils.isAssignable(Byte.class, Integer.TYPE, true)); assertTrue("byte -> long", ClassUtils.isAssignable(Byte.class, Long.TYPE, true)); assertTrue("byte -> float", ClassUtils.isAssignable(Byte.class, Float.TYPE, true)); assertTrue("byte -> double", ClassUtils.isAssignable(Byte.class, Double.TYPE, true)); assertFalse("byte -> boolean", ClassUtils.isAssignable(Byte.class, Boolean.TYPE, true)); // test short conversions assertFalse("short -> char", ClassUtils.isAssignable(Short.class, Character.TYPE, true)); assertFalse("short -> byte", ClassUtils.isAssignable(Short.class, Byte.TYPE, true)); assertTrue("short -> short", ClassUtils.isAssignable(Short.class, Short.TYPE, true)); assertTrue("short -> int", ClassUtils.isAssignable(Short.class, Integer.TYPE, true)); assertTrue("short -> long", ClassUtils.isAssignable(Short.class, Long.TYPE, true)); assertTrue("short -> float", ClassUtils.isAssignable(Short.class, Float.TYPE, true)); assertTrue("short -> double", ClassUtils.isAssignable(Short.class, Double.TYPE, true)); assertFalse("short -> boolean", ClassUtils.isAssignable(Short.class, Boolean.TYPE, true)); // test char conversions assertTrue("char -> char", ClassUtils.isAssignable(Character.class, Character.TYPE, true)); assertFalse("char -> byte", ClassUtils.isAssignable(Character.class, Byte.TYPE, true)); assertFalse("char -> short", ClassUtils.isAssignable(Character.class, Short.TYPE, true)); assertTrue("char -> int", ClassUtils.isAssignable(Character.class, Integer.TYPE, true)); assertTrue("char -> long", ClassUtils.isAssignable(Character.class, Long.TYPE, true)); assertTrue("char -> float", ClassUtils.isAssignable(Character.class, Float.TYPE, true)); assertTrue("char -> double", ClassUtils.isAssignable(Character.class, Double.TYPE, true)); assertFalse("char -> boolean", ClassUtils.isAssignable(Character.class, Boolean.TYPE, true)); // test int conversions assertFalse("int -> char", ClassUtils.isAssignable(Integer.class, Character.TYPE, true)); assertFalse("int -> byte", ClassUtils.isAssignable(Integer.class, Byte.TYPE, true)); assertFalse("int -> short", ClassUtils.isAssignable(Integer.class, Short.TYPE, true)); assertTrue("int -> int", ClassUtils.isAssignable(Integer.class, Integer.TYPE, true)); assertTrue("int -> long", ClassUtils.isAssignable(Integer.class, Long.TYPE, true)); assertTrue("int -> float", ClassUtils.isAssignable(Integer.class, Float.TYPE, true)); assertTrue("int -> double", ClassUtils.isAssignable(Integer.class, Double.TYPE, true)); assertFalse("int -> boolean", ClassUtils.isAssignable(Integer.class, Boolean.TYPE, true)); // test long conversions assertFalse("long -> char", ClassUtils.isAssignable(Long.class, Character.TYPE, true)); assertFalse("long -> byte", ClassUtils.isAssignable(Long.class, Byte.TYPE, true)); assertFalse("long -> short", ClassUtils.isAssignable(Long.class, Short.TYPE, true)); assertFalse("long -> int", ClassUtils.isAssignable(Long.class, Integer.TYPE, true)); assertTrue("long -> long", ClassUtils.isAssignable(Long.class, Long.TYPE, true)); assertTrue("long -> float", ClassUtils.isAssignable(Long.class, Float.TYPE, true)); assertTrue("long -> double", ClassUtils.isAssignable(Long.class, Double.TYPE, true)); assertFalse("long -> boolean", ClassUtils.isAssignable(Long.class, Boolean.TYPE, true)); // test float conversions assertFalse("float -> char", ClassUtils.isAssignable(Float.class, Character.TYPE, true)); assertFalse("float -> byte", ClassUtils.isAssignable(Float.class, Byte.TYPE, true)); assertFalse("float -> short", ClassUtils.isAssignable(Float.class, Short.TYPE, true)); assertFalse("float -> int", ClassUtils.isAssignable(Float.class, Integer.TYPE, true)); assertFalse("float -> long", ClassUtils.isAssignable(Float.class, Long.TYPE, true)); assertTrue("float -> float", ClassUtils.isAssignable(Float.class, Float.TYPE, true)); assertTrue("float -> double", ClassUtils.isAssignable(Float.class, Double.TYPE, true)); assertFalse("float -> boolean", ClassUtils.isAssignable(Float.class, Boolean.TYPE, true)); // test double conversions assertFalse("double -> char", ClassUtils.isAssignable(Double.class, Character.TYPE, true)); assertFalse("double -> byte", ClassUtils.isAssignable(Double.class, Byte.TYPE, true)); assertFalse("double -> short", ClassUtils.isAssignable(Double.class, Short.TYPE, true)); assertFalse("double -> int", ClassUtils.isAssignable(Double.class, Integer.TYPE, true)); assertFalse("double -> long", ClassUtils.isAssignable(Double.class, Long.TYPE, true)); assertFalse("double -> float", ClassUtils.isAssignable(Double.class, Float.TYPE, true)); assertTrue("double -> double", ClassUtils.isAssignable(Double.class, Double.TYPE, true)); assertFalse("double -> boolean", ClassUtils.isAssignable(Double.class, Boolean.TYPE, true)); // test boolean conversions assertFalse("boolean -> char", ClassUtils.isAssignable(Boolean.class, Character.TYPE, true)); assertFalse("boolean -> byte", ClassUtils.isAssignable(Boolean.class, Byte.TYPE, true)); assertFalse("boolean -> short", ClassUtils.isAssignable(Boolean.class, Short.TYPE, true)); assertFalse("boolean -> int", ClassUtils.isAssignable(Boolean.class, Integer.TYPE, true)); assertFalse("boolean -> long", ClassUtils.isAssignable(Boolean.class, Long.TYPE, true)); assertFalse("boolean -> float", ClassUtils.isAssignable(Boolean.class, Float.TYPE, true)); assertFalse("boolean -> double", ClassUtils.isAssignable(Boolean.class, Double.TYPE, true)); assertTrue("boolean -> boolean", ClassUtils.isAssignable(Boolean.class, Boolean.TYPE, true)); } @Test public void testIsPrimitiveOrWrapper() { // test primitive wrapper classes assertTrue("Boolean.class", ClassUtils.isPrimitiveOrWrapper(Boolean.class)); assertTrue("Byte.class", ClassUtils.isPrimitiveOrWrapper(Byte.class)); assertTrue("Character.class", ClassUtils.isPrimitiveOrWrapper(Character.class)); assertTrue("Short.class", ClassUtils.isPrimitiveOrWrapper(Short.class)); assertTrue("Integer.class", ClassUtils.isPrimitiveOrWrapper(Integer.class)); assertTrue("Long.class", ClassUtils.isPrimitiveOrWrapper(Long.class)); assertTrue("Double.class", ClassUtils.isPrimitiveOrWrapper(Double.class)); assertTrue("Float.class", ClassUtils.isPrimitiveOrWrapper(Float.class)); // test primitive classes assertTrue("boolean", ClassUtils.isPrimitiveOrWrapper(Boolean.TYPE)); assertTrue("byte", ClassUtils.isPrimitiveOrWrapper(Byte.TYPE)); assertTrue("char", ClassUtils.isPrimitiveOrWrapper(Character.TYPE)); assertTrue("short", ClassUtils.isPrimitiveOrWrapper(Short.TYPE)); assertTrue("int", ClassUtils.isPrimitiveOrWrapper(Integer.TYPE)); assertTrue("long", ClassUtils.isPrimitiveOrWrapper(Long.TYPE)); assertTrue("double", ClassUtils.isPrimitiveOrWrapper(Double.TYPE)); assertTrue("float", ClassUtils.isPrimitiveOrWrapper(Float.TYPE)); assertTrue("Void.TYPE", ClassUtils.isPrimitiveOrWrapper(Void.TYPE)); // others assertFalse("null", ClassUtils.isPrimitiveOrWrapper(null)); assertFalse("Void.class", ClassUtils.isPrimitiveOrWrapper(Void.class)); assertFalse("String.class", ClassUtils.isPrimitiveOrWrapper(String.class)); assertFalse("this.getClass()", ClassUtils.isPrimitiveOrWrapper(this.getClass())); } @Test public void testIsPrimitiveWrapper() { // test primitive wrapper classes assertTrue("Boolean.class", ClassUtils.isPrimitiveWrapper(Boolean.class)); assertTrue("Byte.class", ClassUtils.isPrimitiveWrapper(Byte.class)); assertTrue("Character.class", ClassUtils.isPrimitiveWrapper(Character.class)); assertTrue("Short.class", ClassUtils.isPrimitiveWrapper(Short.class)); assertTrue("Integer.class", ClassUtils.isPrimitiveWrapper(Integer.class)); assertTrue("Long.class", ClassUtils.isPrimitiveWrapper(Long.class)); assertTrue("Double.class", ClassUtils.isPrimitiveWrapper(Double.class)); assertTrue("Float.class", ClassUtils.isPrimitiveWrapper(Float.class)); // test primitive classes assertFalse("boolean", ClassUtils.isPrimitiveWrapper(Boolean.TYPE)); assertFalse("byte", ClassUtils.isPrimitiveWrapper(Byte.TYPE)); assertFalse("char", ClassUtils.isPrimitiveWrapper(Character.TYPE)); assertFalse("short", ClassUtils.isPrimitiveWrapper(Short.TYPE)); assertFalse("int", ClassUtils.isPrimitiveWrapper(Integer.TYPE)); assertFalse("long", ClassUtils.isPrimitiveWrapper(Long.TYPE)); assertFalse("double", ClassUtils.isPrimitiveWrapper(Double.TYPE)); assertFalse("float", ClassUtils.isPrimitiveWrapper(Float.TYPE)); // others assertFalse("null", ClassUtils.isPrimitiveWrapper(null)); assertFalse("Void.class", ClassUtils.isPrimitiveWrapper(Void.class)); assertFalse("Void.TYPE", ClassUtils.isPrimitiveWrapper(Void.TYPE)); assertFalse("String.class", ClassUtils.isPrimitiveWrapper(String.class)); assertFalse("this.getClass()", ClassUtils.isPrimitiveWrapper(this.getClass())); } @Test public void testPrimitiveToWrapper() { // test primitive classes assertEquals("boolean -> Boolean.class", Boolean.class, ClassUtils.primitiveToWrapper(Boolean.TYPE)); assertEquals("byte -> Byte.class", Byte.class, ClassUtils.primitiveToWrapper(Byte.TYPE)); assertEquals("char -> Character.class", Character.class, ClassUtils.primitiveToWrapper(Character.TYPE)); assertEquals("short -> Short.class", Short.class, ClassUtils.primitiveToWrapper(Short.TYPE)); assertEquals("int -> Integer.class", Integer.class, ClassUtils.primitiveToWrapper(Integer.TYPE)); assertEquals("long -> Long.class", Long.class, ClassUtils.primitiveToWrapper(Long.TYPE)); assertEquals("double -> Double.class", Double.class, ClassUtils.primitiveToWrapper(Double.TYPE)); assertEquals("float -> Float.class", Float.class, ClassUtils.primitiveToWrapper(Float.TYPE)); // test a few other classes assertEquals("String.class -> String.class", String.class, ClassUtils.primitiveToWrapper(String.class)); assertEquals("ClassUtils.class -> ClassUtils.class", org.apache.commons.lang3.ClassUtils.class, ClassUtils.primitiveToWrapper(org.apache.commons.lang3.ClassUtils.class)); assertEquals("Void.TYPE -> Void.TYPE", Void.TYPE, ClassUtils.primitiveToWrapper(Void.TYPE)); // test null assertNull("null -> null", ClassUtils.primitiveToWrapper(null)); } @Test public void testPrimitivesToWrappers() { // test null // assertNull("null -> null", ClassUtils.primitivesToWrappers(null)); // generates warning assertNull("null -> null", ClassUtils.primitivesToWrappers((Class[]) null)); // equivalent cast to avoid warning // Other possible casts for null assertTrue("empty -> empty", Arrays.equals(ArrayUtils.EMPTY_CLASS_ARRAY, ClassUtils.primitivesToWrappers())); final Class[] castNull = ClassUtils.primitivesToWrappers((Class)null); // == new Class[]{null} assertTrue("(Class)null -> [null]", Arrays.equals(new Class[]{null}, castNull)); // test empty array is returned unchanged // TODO this is not documented assertArrayEquals("empty -> empty", ArrayUtils.EMPTY_CLASS_ARRAY, ClassUtils.primitivesToWrappers(ArrayUtils.EMPTY_CLASS_ARRAY)); // test an array of various classes final Class[] primitives = new Class[] { Boolean.TYPE, Byte.TYPE, Character.TYPE, Short.TYPE, Integer.TYPE, Long.TYPE, Double.TYPE, Float.TYPE, String.class, ClassUtils.class }; final Class[] wrappers= ClassUtils.primitivesToWrappers(primitives); for (int i=0; i < primitives.length; i++) { // test each returned wrapper final Class primitive = primitives[i]; final Class expectedWrapper = ClassUtils.primitiveToWrapper(primitive); assertEquals(primitive + " -> " + expectedWrapper, expectedWrapper, wrappers[i]); } // test an array of no primitive classes final Class[] noPrimitives = new Class[] { String.class, ClassUtils.class, Void.TYPE }; // This used to return the exact same array, but no longer does. assertNotSame("unmodified", noPrimitives, ClassUtils.primitivesToWrappers(noPrimitives)); } @Test public void testWrapperToPrimitive() { // an array with classes to convert final Class[] primitives = { Boolean.TYPE, Byte.TYPE, Character.TYPE, Short.TYPE, Integer.TYPE, Long.TYPE, Float.TYPE, Double.TYPE }; for (final Class primitive : primitives) { final Class wrapperCls = ClassUtils.primitiveToWrapper(primitive); assertFalse("Still primitive", wrapperCls.isPrimitive()); assertEquals(wrapperCls + " -> " + primitive, primitive, ClassUtils.wrapperToPrimitive(wrapperCls)); } } @Test public void testWrapperToPrimitiveNoWrapper() { assertNull("Wrong result for non wrapper class", ClassUtils.wrapperToPrimitive(String.class)); } @Test public void testWrapperToPrimitiveNull() { assertNull("Wrong result for null class", ClassUtils.wrapperToPrimitive(null)); } @Test public void testWrappersToPrimitives() { // an array with classes to test final Class[] classes = { Boolean.class, Byte.class, Character.class, Short.class, Integer.class, Long.class, Float.class, Double.class, String.class, ClassUtils.class, null }; final Class[] primitives = ClassUtils.wrappersToPrimitives(classes); // now test the result assertEquals("Wrong length of result array", classes.length, primitives.length); for (int i = 0; i < classes.length; i++) { final Class expectedPrimitive = ClassUtils.wrapperToPrimitive(classes[i]); assertEquals(classes[i] + " -> " + expectedPrimitive, expectedPrimitive, primitives[i]); } } @Test public void testWrappersToPrimitivesNull() { // assertNull("Wrong result for null input", ClassUtils.wrappersToPrimitives(null)); // generates warning assertNull("Wrong result for null input", ClassUtils.wrappersToPrimitives((Class[]) null)); // equivalent cast // Other possible casts for null assertTrue("empty -> empty", Arrays.equals(ArrayUtils.EMPTY_CLASS_ARRAY, ClassUtils.wrappersToPrimitives())); final Class[] castNull = ClassUtils.wrappersToPrimitives((Class)null); // == new Class[]{null} assertTrue("(Class)null -> [null]", Arrays.equals(new Class[]{null}, castNull)); } @Test public void testWrappersToPrimitivesEmpty() { final Class[] empty = new Class[0]; assertArrayEquals("Wrong result for empty input", empty, ClassUtils.wrappersToPrimitives(empty)); } @Test public void testGetClassClassNotFound() throws Exception { assertGetClassThrowsClassNotFound( "bool" ); assertGetClassThrowsClassNotFound( "bool[]" ); assertGetClassThrowsClassNotFound( "integer[]" ); } @Test public void testGetClassInvalidArguments() throws Exception { assertGetClassThrowsNullPointerException( null ); assertGetClassThrowsClassNotFound( "[][][]" ); assertGetClassThrowsClassNotFound( "[[]" ); assertGetClassThrowsClassNotFound( "[" ); assertGetClassThrowsClassNotFound( "java.lang.String][" ); assertGetClassThrowsClassNotFound( ".hello.world" ); assertGetClassThrowsClassNotFound( "hello..world" ); } @Test public void testWithInterleavingWhitespace() throws ClassNotFoundException { assertEquals( int[].class, ClassUtils.getClass( " int [ ] " ) ); assertEquals( long[].class, ClassUtils.getClass( "\rlong\t[\n]\r" ) ); assertEquals( short[].class, ClassUtils.getClass( "\tshort \t\t[]" ) ); assertEquals( byte[].class, ClassUtils.getClass( "byte[\t\t\n\r] " ) ); } @Test public void testGetInnerClass() throws ClassNotFoundException { assertEquals( Inner.DeeplyNested.class, ClassUtils.getClass( "org.apache.commons.lang3.ClassUtilsTest.Inner.DeeplyNested" ) ); assertEquals( Inner.DeeplyNested.class, ClassUtils.getClass( "org.apache.commons.lang3.ClassUtilsTest.Inner$DeeplyNested" ) ); assertEquals( Inner.DeeplyNested.class, ClassUtils.getClass( "org.apache.commons.lang3.ClassUtilsTest$Inner$DeeplyNested" ) ); assertEquals( Inner.DeeplyNested.class, ClassUtils.getClass( "org.apache.commons.lang3.ClassUtilsTest$Inner.DeeplyNested" ) ); } @Test public void testGetClassByNormalNameArrays() throws ClassNotFoundException { assertEquals( int[].class, ClassUtils.getClass( "int[]" ) ); assertEquals( long[].class, ClassUtils.getClass( "long[]" ) ); assertEquals( short[].class, ClassUtils.getClass( "short[]" ) ); assertEquals( byte[].class, ClassUtils.getClass( "byte[]" ) ); assertEquals( char[].class, ClassUtils.getClass( "char[]" ) ); assertEquals( float[].class, ClassUtils.getClass( "float[]" ) ); assertEquals( double[].class, ClassUtils.getClass( "double[]" ) ); assertEquals( boolean[].class, ClassUtils.getClass( "boolean[]" ) ); assertEquals( String[].class, ClassUtils.getClass( "java.lang.String[]" ) ); assertEquals( java.util.Map.Entry[].class, ClassUtils.getClass( "java.util.Map.Entry[]" ) ); assertEquals( java.util.Map.Entry[].class, ClassUtils.getClass( "java.util.Map$Entry[]" ) ); assertEquals( java.util.Map.Entry[].class, ClassUtils.getClass( "[Ljava.util.Map.Entry;" ) ); assertEquals( java.util.Map.Entry[].class, ClassUtils.getClass( "[Ljava.util.Map$Entry;" ) ); } @Test public void testGetClassByNormalNameArrays2D() throws ClassNotFoundException { assertEquals( int[][].class, ClassUtils.getClass( "int[][]" ) ); assertEquals( long[][].class, ClassUtils.getClass( "long[][]" ) ); assertEquals( short[][].class, ClassUtils.getClass( "short[][]" ) ); assertEquals( byte[][].class, ClassUtils.getClass( "byte[][]" ) ); assertEquals( char[][].class, ClassUtils.getClass( "char[][]" ) ); assertEquals( float[][].class, ClassUtils.getClass( "float[][]" ) ); assertEquals( double[][].class, ClassUtils.getClass( "double[][]" ) ); assertEquals( boolean[][].class, ClassUtils.getClass( "boolean[][]" ) ); assertEquals( String[][].class, ClassUtils.getClass( "java.lang.String[][]" ) ); } @Test public void testGetClassWithArrayClasses2D() throws Exception { assertGetClassReturnsClass( String[][].class ); assertGetClassReturnsClass( int[][].class ); assertGetClassReturnsClass( long[][].class ); assertGetClassReturnsClass( short[][].class ); assertGetClassReturnsClass( byte[][].class ); assertGetClassReturnsClass( char[][].class ); assertGetClassReturnsClass( float[][].class ); assertGetClassReturnsClass( double[][].class ); assertGetClassReturnsClass( boolean[][].class ); } @Test public void testGetClassWithArrayClasses() throws Exception { assertGetClassReturnsClass( String[].class ); assertGetClassReturnsClass( int[].class ); assertGetClassReturnsClass( long[].class ); assertGetClassReturnsClass( short[].class ); assertGetClassReturnsClass( byte[].class ); assertGetClassReturnsClass( char[].class ); assertGetClassReturnsClass( float[].class ); assertGetClassReturnsClass( double[].class ); assertGetClassReturnsClass( boolean[].class ); } @Test public void testGetClassRawPrimitives() throws ClassNotFoundException { assertEquals( int.class, ClassUtils.getClass( "int" ) ); assertEquals( long.class, ClassUtils.getClass( "long" ) ); assertEquals( short.class, ClassUtils.getClass( "short" ) ); assertEquals( byte.class, ClassUtils.getClass( "byte" ) ); assertEquals( char.class, ClassUtils.getClass( "char" ) ); assertEquals( float.class, ClassUtils.getClass( "float" ) ); assertEquals( double.class, ClassUtils.getClass( "double" ) ); assertEquals( boolean.class, ClassUtils.getClass( "boolean" ) ); } private void assertGetClassReturnsClass( final Class c ) throws Exception { assertEquals( c, ClassUtils.getClass( c.getName() ) ); } private void assertGetClassThrowsException( final String className, final Class exceptionType ) throws Exception { try { ClassUtils.getClass( className ); fail( "ClassUtils.getClass() should fail with an exception of type " + exceptionType.getName() + " when given class name \"" + className + "\"." ); } catch( final Exception e ) { assertTrue( exceptionType.isAssignableFrom( e.getClass() ) ); } } private void assertGetClassThrowsNullPointerException( final String className ) throws Exception { assertGetClassThrowsException( className, NullPointerException.class ); } private void assertGetClassThrowsClassNotFound( final String className ) throws Exception { assertGetClassThrowsException( className, ClassNotFoundException.class ); } // Show the Java bug: http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4071957 // We may have to delete this if a JDK fixes the bug. @Test public void testShowJavaBug() throws Exception { // Tests with Collections$UnmodifiableSet final Set set = Collections.unmodifiableSet(new HashSet()); final Method isEmptyMethod = set.getClass().getMethod("isEmpty", new Class[0]); try { isEmptyMethod.invoke(set, new Object[0]); fail("Failed to throw IllegalAccessException as expected"); } catch(final IllegalAccessException iae) { // expected } } @Test public void testGetPublicMethod() throws Exception { // Tests with Collections$UnmodifiableSet final Set set = Collections.unmodifiableSet(new HashSet()); final Method isEmptyMethod = ClassUtils.getPublicMethod(set.getClass(), "isEmpty", new Class[0]); assertTrue(Modifier.isPublic(isEmptyMethod.getDeclaringClass().getModifiers())); try { isEmptyMethod.invoke(set, new Object[0]); } catch(final java.lang.IllegalAccessException iae) { fail("Should not have thrown IllegalAccessException"); } // Tests with a public Class final Method toStringMethod = ClassUtils.getPublicMethod(Object.class, "toString", new Class[0]); assertEquals(Object.class.getMethod("toString", new Class[0]), toStringMethod); } @Test public void testToClass_object() { // assertNull(ClassUtils.toClass(null)); // generates warning assertNull(ClassUtils.toClass((Object[]) null)); // equivalent explicit cast // Additional varargs tests assertTrue("empty -> empty", Arrays.equals(ArrayUtils.EMPTY_CLASS_ARRAY, ClassUtils.toClass())); final Class[] castNull = ClassUtils.toClass((Object) null); // == new Object[]{null} assertTrue("(Object)null -> [null]", Arrays.equals(new Object[]{null}, castNull)); assertSame(ArrayUtils.EMPTY_CLASS_ARRAY, ClassUtils.toClass(ArrayUtils.EMPTY_OBJECT_ARRAY)); assertTrue(Arrays.equals(new Class[] { String.class, Integer.class, Double.class }, ClassUtils.toClass(new Object[] { "Test", Integer.valueOf(1), Double.valueOf(99d) }))); assertTrue(Arrays.equals(new Class[] { String.class, null, Double.class }, ClassUtils.toClass(new Object[] { "Test", null, Double.valueOf(99d) }))); } @Test public void test_getShortCanonicalName_Object() { assertEquals("", ClassUtils.getShortCanonicalName(null, "")); assertEquals("ClassUtils", ClassUtils.getShortCanonicalName(new ClassUtils(), "")); assertEquals("ClassUtils[]", ClassUtils.getShortCanonicalName(new ClassUtils[0], "")); assertEquals("ClassUtils[][]", ClassUtils.getShortCanonicalName(new ClassUtils[0][0], "")); assertEquals("int[]", ClassUtils.getShortCanonicalName(new int[0], "")); assertEquals("int[][]", ClassUtils.getShortCanonicalName(new int[0][0], "")); // Inner types class Named extends Object {} assertEquals("ClassUtilsTest.6", ClassUtils.getShortCanonicalName(new Object(){}, "")); assertEquals("ClassUtilsTest.5Named", ClassUtils.getShortCanonicalName(new Named(), "")); assertEquals("ClassUtilsTest.Inner", ClassUtils.getShortCanonicalName(new Inner(), "")); } @Test public void test_getShortCanonicalName_Class() { assertEquals("ClassUtils", ClassUtils.getShortCanonicalName(ClassUtils.class)); assertEquals("ClassUtils[]", ClassUtils.getShortCanonicalName(ClassUtils[].class)); assertEquals("ClassUtils[][]", ClassUtils.getShortCanonicalName(ClassUtils[][].class)); assertEquals("int[]", ClassUtils.getShortCanonicalName(int[].class)); assertEquals("int[][]", ClassUtils.getShortCanonicalName(int[][].class)); // Inner types class Named extends Object {} assertEquals("ClassUtilsTest.7", ClassUtils.getShortCanonicalName(new Object(){}.getClass())); assertEquals("ClassUtilsTest.6Named", ClassUtils.getShortCanonicalName(Named.class)); assertEquals("ClassUtilsTest.Inner", ClassUtils.getShortCanonicalName(Inner.class)); } @Test public void test_getShortCanonicalName_String() { assertEquals("ClassUtils", ClassUtils.getShortCanonicalName("org.apache.commons.lang3.ClassUtils")); assertEquals("ClassUtils[]", ClassUtils.getShortCanonicalName("[Lorg.apache.commons.lang3.ClassUtils;")); assertEquals("ClassUtils[][]", ClassUtils.getShortCanonicalName("[[Lorg.apache.commons.lang3.ClassUtils;")); assertEquals("ClassUtils[]", ClassUtils.getShortCanonicalName("org.apache.commons.lang3.ClassUtils[]")); assertEquals("ClassUtils[][]", ClassUtils.getShortCanonicalName("org.apache.commons.lang3.ClassUtils[][]")); assertEquals("int[]", ClassUtils.getShortCanonicalName("[I")); assertEquals("int[][]", ClassUtils.getShortCanonicalName("[[I")); assertEquals("int[]", ClassUtils.getShortCanonicalName("int[]")); assertEquals("int[][]", ClassUtils.getShortCanonicalName("int[][]")); // Inner types assertEquals("ClassUtilsTest.6", ClassUtils.getShortCanonicalName("org.apache.commons.lang3.ClassUtilsTest$6")); assertEquals("ClassUtilsTest.5Named", ClassUtils.getShortCanonicalName("org.apache.commons.lang3.ClassUtilsTest$5Named")); assertEquals("ClassUtilsTest.Inner", ClassUtils.getShortCanonicalName("org.apache.commons.lang3.ClassUtilsTest$Inner")); } @Test public void test_getPackageCanonicalName_Object() { assertEquals("", ClassUtils.getPackageCanonicalName(null, "")); assertEquals("org.apache.commons.lang3", ClassUtils.getPackageCanonicalName(new ClassUtils(), "")); assertEquals("org.apache.commons.lang3", ClassUtils.getPackageCanonicalName(new ClassUtils[0], "")); assertEquals("org.apache.commons.lang3", ClassUtils.getPackageCanonicalName(new ClassUtils[0][0], "")); assertEquals("", ClassUtils.getPackageCanonicalName(new int[0], "")); assertEquals("", ClassUtils.getPackageCanonicalName(new int[0][0], "")); // Inner types class Named extends Object {} assertEquals("org.apache.commons.lang3", ClassUtils.getPackageCanonicalName(new Object(){}, "")); assertEquals("org.apache.commons.lang3", ClassUtils.getPackageCanonicalName(new Named(), "")); assertEquals("org.apache.commons.lang3", ClassUtils.getPackageCanonicalName(new Inner(), "")); } @Test public void test_getPackageCanonicalName_Class() { assertEquals("org.apache.commons.lang3", ClassUtils.getPackageCanonicalName(ClassUtils.class)); assertEquals("org.apache.commons.lang3", ClassUtils.getPackageCanonicalName(ClassUtils[].class)); assertEquals("org.apache.commons.lang3", ClassUtils.getPackageCanonicalName(ClassUtils[][].class)); assertEquals("", ClassUtils.getPackageCanonicalName(int[].class)); assertEquals("", ClassUtils.getPackageCanonicalName(int[][].class)); // Inner types class Named extends Object {} assertEquals("org.apache.commons.lang3", ClassUtils.getPackageCanonicalName(new Object(){}.getClass())); assertEquals("org.apache.commons.lang3", ClassUtils.getPackageCanonicalName(Named.class)); assertEquals("org.apache.commons.lang3", ClassUtils.getPackageCanonicalName(Inner.class)); } @Test public void test_getPackageCanonicalName_String() { assertEquals("org.apache.commons.lang3", ClassUtils.getPackageCanonicalName("org.apache.commons.lang3.ClassUtils")); assertEquals("org.apache.commons.lang3", ClassUtils.getPackageCanonicalName("[Lorg.apache.commons.lang3.ClassUtils;")); assertEquals("org.apache.commons.lang3", ClassUtils.getPackageCanonicalName("[[Lorg.apache.commons.lang3.ClassUtils;")); assertEquals("org.apache.commons.lang3", ClassUtils.getPackageCanonicalName("org.apache.commons.lang3.ClassUtils[]")); assertEquals("org.apache.commons.lang3", ClassUtils.getPackageCanonicalName("org.apache.commons.lang3.ClassUtils[][]")); assertEquals("", ClassUtils.getPackageCanonicalName("[I")); assertEquals("", ClassUtils.getPackageCanonicalName("[[I")); assertEquals("", ClassUtils.getPackageCanonicalName("int[]")); assertEquals("", ClassUtils.getPackageCanonicalName("int[][]")); // Inner types assertEquals("org.apache.commons.lang3", ClassUtils.getPackageCanonicalName("org.apache.commons.lang3.ClassUtilsTest$6")); assertEquals("org.apache.commons.lang3", ClassUtils.getPackageCanonicalName("org.apache.commons.lang3.ClassUtilsTest$5Named")); assertEquals("org.apache.commons.lang3", ClassUtils.getPackageCanonicalName("org.apache.commons.lang3.ClassUtilsTest$Inner")); } @Test public void testHierarchyIncludingInterfaces() { final Iterator> iter = ClassUtils.hierarchy(StringParameterizedChild.class, Interfaces.INCLUDE).iterator(); assertEquals(StringParameterizedChild.class, iter.next()); assertEquals(GenericParent.class, iter.next()); assertEquals(GenericConsumer.class, iter.next()); assertEquals(Object.class, iter.next()); assertFalse(iter.hasNext()); } @Test public void testHierarchyExcludingInterfaces() { final Iterator> iter = ClassUtils.hierarchy(StringParameterizedChild.class).iterator(); assertEquals(StringParameterizedChild.class, iter.next()); assertEquals(GenericParent.class, iter.next()); assertEquals(Object.class, iter.next()); assertFalse(iter.hasNext()); } }