package org.json.simple; import java.io.IOException; import java.io.StringWriter; import java.util.ArrayList; import java.util.HashSet; import org.json.simple.parser.JSONParser; import org.junit.After; import org.junit.Assert; import org.junit.Before; import org.junit.Test; /** Ensures that JSONArray hasn't regressed in functionality or breaks its API contract. Deprecated warnings are * suppressed since it is intentionally testing deprecated code for backwards compatibility. */ @SuppressWarnings("deprecation") public class JSONArrayTest{ /** Called before each Test Method. */ @Before public void setUp(){ /* All of the implemented tests use local variables in their own respective method. */ } /** Called after each Test method. */ @After public void tearDown(){ /* All of the implemented tests use local variables in their own respective method. */ } /** Ensures a boolean array can be encoded as a JSON string. * @throws IOException if the test failed. */ @Test public void testBooleanArrayToString() throws IOException{ Assert.assertEquals("null", JSONArray.toJSONString((boolean[])null)); Assert.assertEquals("[]", JSONArray.toJSONString(new boolean[0])); Assert.assertEquals("[true]", JSONArray.toJSONString(new boolean[]{true})); Assert.assertEquals("[true,false,true]", JSONArray.toJSONString(new boolean[]{true, false, true})); StringWriter writer; writer = new StringWriter(); JSONArray.writeJSONString((boolean[])null, writer); Assert.assertEquals("null", writer.toString()); writer = new StringWriter(); JSONArray.writeJSONString(new boolean[0], writer); Assert.assertEquals("[]", writer.toString()); writer = new StringWriter(); JSONArray.writeJSONString(new boolean[]{true}, writer); Assert.assertEquals("[true]", writer.toString()); writer = new StringWriter(); JSONArray.writeJSONString(new boolean[]{true, false, true}, writer); Assert.assertEquals("[true,false,true]", writer.toString()); } /** Ensures a byte array can be encoded as a JSON string. * @throws IOException if the test failed. */ @Test public void testByteArrayToString() throws IOException{ Assert.assertEquals("null", JSONArray.toJSONString((byte[])null)); Assert.assertEquals("[]", JSONArray.toJSONString(new byte[0])); Assert.assertEquals("[12]", JSONArray.toJSONString(new byte[]{12})); Assert.assertEquals("[-7,22,86,-99]", JSONArray.toJSONString(new byte[]{-7, 22, 86, -99})); StringWriter writer; writer = new StringWriter(); JSONArray.writeJSONString((byte[])null, writer); Assert.assertEquals("null", writer.toString()); writer = new StringWriter(); JSONArray.writeJSONString(new byte[0], writer); Assert.assertEquals("[]", writer.toString()); writer = new StringWriter(); JSONArray.writeJSONString(new byte[]{12}, writer); Assert.assertEquals("[12]", writer.toString()); writer = new StringWriter(); JSONArray.writeJSONString(new byte[]{-7, 22, 86, -99}, writer); Assert.assertEquals("[-7,22,86,-99]", writer.toString()); } /** Ensures a char array can be encoded as a JSON string. * @throws IOException if the test failed. */ @Test public void testCharArrayToString() throws IOException{ Assert.assertEquals("null", JSONArray.toJSONString((char[])null)); Assert.assertEquals("[]", JSONArray.toJSONString(new char[0])); Assert.assertEquals("[\"a\"]", JSONArray.toJSONString(new char[]{'a'})); Assert.assertEquals("[\"a\",\"b\",\"c\"]", JSONArray.toJSONString(new char[]{'a', 'b', 'c'})); StringWriter writer; writer = new StringWriter(); JSONArray.writeJSONString((char[])null, writer); Assert.assertEquals("null", writer.toString()); writer = new StringWriter(); JSONArray.writeJSONString(new char[0], writer); Assert.assertEquals("[]", writer.toString()); writer = new StringWriter(); JSONArray.writeJSONString(new char[]{'a'}, writer); Assert.assertEquals("[\"a\"]", writer.toString()); writer = new StringWriter(); JSONArray.writeJSONString(new char[]{'a', 'b', 'c'}, writer); Assert.assertEquals("[\"a\",\"b\",\"c\"]", writer.toString()); } /** Ensures a double array can be encoded as a JSON string. * @throws IOException if the test failed. */ @Test public void testDoubleArrayToString() throws IOException{ Assert.assertEquals("null", JSONArray.toJSONString((double[])null)); Assert.assertEquals("[]", JSONArray.toJSONString(new double[0])); Assert.assertEquals("[12.8]", JSONArray.toJSONString(new double[]{12.8})); Assert.assertEquals("[-7.1,22.234,86.7,-99.02]", JSONArray.toJSONString(new double[]{-7.1, 22.234, 86.7, -99.02})); StringWriter writer; writer = new StringWriter(); JSONArray.writeJSONString((double[])null, writer); Assert.assertEquals("null", writer.toString()); writer = new StringWriter(); JSONArray.writeJSONString(new double[0], writer); Assert.assertEquals("[]", writer.toString()); writer = new StringWriter(); JSONArray.writeJSONString(new double[]{12.8}, writer); Assert.assertEquals("[12.8]", writer.toString()); writer = new StringWriter(); JSONArray.writeJSONString(new double[]{-7.1, 22.234, 86.7, -99.02}, writer); Assert.assertEquals("[-7.1,22.234,86.7,-99.02]", writer.toString()); } /** Ensures a float array can be encoded as a JSON string. * @throws IOException if the test failed. */ @Test public void testFloatArrayToString() throws IOException{ Assert.assertEquals("null", JSONArray.toJSONString((float[])null)); Assert.assertEquals("[]", JSONArray.toJSONString(new float[0])); Assert.assertEquals("[12.8]", JSONArray.toJSONString(new float[]{12.8f})); Assert.assertEquals("[-7.1,22.234,86.7,-99.02]", JSONArray.toJSONString(new float[]{-7.1f, 22.234f, 86.7f, -99.02f})); StringWriter writer; writer = new StringWriter(); JSONArray.writeJSONString((float[])null, writer); Assert.assertEquals("null", writer.toString()); writer = new StringWriter(); JSONArray.writeJSONString(new float[0], writer); Assert.assertEquals("[]", writer.toString()); writer = new StringWriter(); JSONArray.writeJSONString(new float[]{12.8f}, writer); Assert.assertEquals("[12.8]", writer.toString()); writer = new StringWriter(); JSONArray.writeJSONString(new float[]{-7.1f, 22.234f, 86.7f, -99.02f}, writer); Assert.assertEquals("[-7.1,22.234,86.7,-99.02]", writer.toString()); } /** Ensures a int array can be encoded as a JSON string. * @throws IOException if the test failed. */ @Test public void testIntArrayToString() throws IOException{ Assert.assertEquals("null", JSONArray.toJSONString((int[])null)); Assert.assertEquals("[]", JSONArray.toJSONString(new int[0])); Assert.assertEquals("[12]", JSONArray.toJSONString(new int[]{12})); Assert.assertEquals("[-7,22,86,-99]", JSONArray.toJSONString(new int[]{-7, 22, 86, -99})); StringWriter writer; writer = new StringWriter(); JSONArray.writeJSONString((int[])null, writer); Assert.assertEquals("null", writer.toString()); writer = new StringWriter(); JSONArray.writeJSONString(new int[0], writer); Assert.assertEquals("[]", writer.toString()); writer = new StringWriter(); JSONArray.writeJSONString(new int[]{12}, writer); Assert.assertEquals("[12]", writer.toString()); writer = new StringWriter(); JSONArray.writeJSONString(new int[]{-7, 22, 86, -99}, writer); Assert.assertEquals("[-7,22,86,-99]", writer.toString()); } /** Ensures JSONArray is encode as a JSON string. */ @Test public void testJSONArray(){ final JSONArray jsonArray = new JSONArray(); Assert.assertEquals("[]", jsonArray.toJSONString()); } /** Ensures JSONArray is encode as a JSON string. */ @Test public void testJSONArrayCollection(){ final ArrayList testList = new ArrayList(); testList.add("First item"); testList.add("Second item"); final JSONArray jsonArray = new JSONArray(testList); Assert.assertEquals("[\"First item\",\"Second item\"]", jsonArray.toJSONString()); } /** Ensures a long array can be encoded as a JSON string. * @throws IOException if the test failed. */ @Test public void testLongArrayToString() throws IOException{ Assert.assertEquals("null", JSONArray.toJSONString((long[])null)); Assert.assertEquals("[]", JSONArray.toJSONString(new long[0])); Assert.assertEquals("[12]", JSONArray.toJSONString(new long[]{12})); Assert.assertEquals("[-7,22,9223372036854775807,-99]", JSONArray.toJSONString(new long[]{-7, 22, 9223372036854775807L, -99})); StringWriter writer; writer = new StringWriter(); JSONArray.writeJSONString((long[])null, writer); Assert.assertEquals("null", writer.toString()); writer = new StringWriter(); JSONArray.writeJSONString(new long[0], writer); Assert.assertEquals("[]", writer.toString()); writer = new StringWriter(); JSONArray.writeJSONString(new long[]{12}, writer); Assert.assertEquals("[12]", writer.toString()); writer = new StringWriter(); JSONArray.writeJSONString(new long[]{-7, 22, 86, -99}, writer); Assert.assertEquals("[-7,22,86,-99]", writer.toString()); } /** Ensures a object array can be encoded as a JSON string. * @throws IOException if the test failed. */ @Test public void testObjectArrayToString() throws IOException{ Assert.assertEquals("null", JSONArray.toJSONString((Object[])null)); Assert.assertEquals("[]", JSONArray.toJSONString(new Object[0])); Assert.assertEquals("[\"Hello\"]", JSONArray.toJSONString(new Object[]{"Hello"})); Assert.assertEquals("[\"Hello\",12,[1,2,3]]", JSONArray.toJSONString(new Object[]{"Hello", new Integer(12), new int[]{1, 2, 3}})); StringWriter writer; writer = new StringWriter(); JSONArray.writeJSONString((Object[])null, writer); Assert.assertEquals("null", writer.toString()); writer = new StringWriter(); JSONArray.writeJSONString(new Object[0], writer); Assert.assertEquals("[]", writer.toString()); writer = new StringWriter(); JSONArray.writeJSONString(new Object[]{"Hello"}, writer); Assert.assertEquals("[\"Hello\"]", writer.toString()); writer = new StringWriter(); JSONArray.writeJSONString(new Object[]{"Hello", new Integer(12), new int[]{1, 2, 3}}, writer); Assert.assertEquals("[\"Hello\",12,[1,2,3]]", writer.toString()); } /** Ensures a short array can be encoded as a JSON string. * @throws IOException if the test failed. */ @Test public void testShortArrayToString() throws IOException{ Assert.assertEquals("null", JSONArray.toJSONString((short[])null)); Assert.assertEquals("[]", JSONArray.toJSONString(new short[0])); Assert.assertEquals("[12]", JSONArray.toJSONString(new short[]{12})); Assert.assertEquals("[-7,22,86,-99]", JSONArray.toJSONString(new short[]{-7, 22, 86, -99})); StringWriter writer; writer = new StringWriter(); JSONArray.writeJSONString((short[])null, writer); Assert.assertEquals("null", writer.toString()); writer = new StringWriter(); JSONArray.writeJSONString(new short[0], writer); Assert.assertEquals("[]", writer.toString()); writer = new StringWriter(); JSONArray.writeJSONString(new short[]{12}, writer); Assert.assertEquals("[12]", writer.toString()); writer = new StringWriter(); JSONArray.writeJSONString(new short[]{-7, 22, 86, -99}, writer); Assert.assertEquals("[-7,22,86,-99]", writer.toString()); } /** Ensures encoded collections are decoded. * @throws Exception if the test failed. */ @SuppressWarnings("unchecked") @Test public void testToJSONStringCollection() throws Exception{ /* The method is unchecked because JSONArray is an unparameterized type. */ final HashSet testSet = new HashSet(); testSet.add("First item"); testSet.add("Second item"); final JSONArray jsonArray = new JSONArray(testSet); final JSONParser parser = new JSONParser(); final JSONArray parsedArray = (JSONArray)parser.parse(jsonArray.toJSONString()); Assert.assertTrue(parsedArray.containsAll(jsonArray)); Assert.assertTrue(jsonArray.containsAll(parsedArray)); Assert.assertEquals(2, jsonArray.size()); } /** Ensures collections are encode as a JSON string. * @throws Exception if the test failed. */ @SuppressWarnings("unchecked") @Test public void testWriteJSONStringCollectionWriter() throws Exception{ /* The method is unchecked because JSONArray is an unparameterized type. */ final HashSet testSet = new HashSet(); testSet.add("First item"); testSet.add("Second item"); final JSONArray jsonArray = new JSONArray(testSet); final StringWriter writer = new StringWriter(); jsonArray.writeJSONString(writer); final JSONParser parser = new JSONParser(); final JSONArray parsedArray = (JSONArray)parser.parse(writer.toString()); Assert.assertTrue(parsedArray.containsAll(jsonArray)); Assert.assertTrue(jsonArray.containsAll(parsedArray)); Assert.assertEquals(2, jsonArray.size()); } }