Java tutorial
/* * Copyright (C) 2010 Google Inc. * * Licensed 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 com.android.i18n.addressinput; import junit.framework.TestCase; import org.json.JSONArray; import org.json.JSONException; import java.util.Arrays; import java.util.HashSet; import java.util.Set; /** * Unit test for {@link JsoMap}. */ public class JsoMapTest extends TestCase { private static final String VALID_JSON = "{\"a\":\"b\",\"c\":1,\"d\":{\"e\":\"f\"}}"; private static final String INVALID_JSON = "!"; public void testBuildJsoMap() throws Exception { assertNotNull(JsoMap.buildJsoMap(VALID_JSON)); try { JsoMap.buildJsoMap(INVALID_JSON); fail("Expected JSONException."); } catch (JSONException e) { // Expected. } } public void testCreateEmptyJsoMap() throws Exception { assertNotNull(JsoMap.createEmptyJsoMap()); } public void testDelKey() throws Exception { JsoMap map = JsoMap.buildJsoMap(VALID_JSON); assertEquals("b", map.get("a")); map.delKey("a"); assertNull(map.get("a")); map.delKey("b"); map.delKey("c"); map.delKey("d"); } public void testGet() throws Exception { JsoMap map = JsoMap.buildJsoMap(VALID_JSON); assertEquals("b", map.get("a")); assertNull(map.get("b")); try { map.get("c"); fail("Expected IllegalArgumentException."); } catch (IllegalArgumentException e) { // Expected. } try { map.get("d"); fail("Expected ClassCastException."); } catch (ClassCastException e) { // Expected. } } public void testGetInt() throws Exception { JsoMap map = JsoMap.buildJsoMap(VALID_JSON); try { map.getInt("a"); fail("Expected RuntimeException."); } catch (RuntimeException e) { // Expected. } assertEquals(-1, map.getInt("b")); assertEquals(1, map.getInt("c")); try { map.getInt("d"); fail("Expected RuntimeException."); } catch (RuntimeException e) { // Expected. } } public void testGetKeys() throws Exception { JsoMap map = JsoMap.buildJsoMap(VALID_JSON); JSONArray keys = map.getKeys(); assertNotNull(keys); assertEquals(3, keys.length()); Set<String> keySet = new HashSet<String>(keys.length()); for (int i = 0; i < keys.length(); i++) { keySet.add(keys.getString(i)); } assertEquals(new HashSet<String>(Arrays.asList("a", "c", "d")), keySet); } public void testGetObj() throws Exception { JsoMap map = JsoMap.buildJsoMap(VALID_JSON); try { map.getObj("a"); fail("Expected ClassCastException."); } catch (ClassCastException e) { // Expected. } assertNull(map.getObj("b")); try { map.getObj("c"); fail("Expected IllegalArgumentException."); } catch (IllegalArgumentException e) { // Expected. } JsoMap obj = map.getObj("d"); assertNotNull(obj); assertEquals("f", obj.get("e")); } public void testContainsKey() throws Exception { JsoMap map = JsoMap.buildJsoMap(VALID_JSON); assertTrue(map.containsKey("a")); assertFalse(map.containsKey("b")); assertTrue(map.containsKey("c")); assertTrue(map.containsKey("d")); } public void testMergeData() throws Exception { JsoMap mapA = JsoMap.createEmptyJsoMap(); JsoMap mapB = JsoMap.createEmptyJsoMap(); mapA.putInt("a", 1); mapA.putInt("b", 2); mapB.putInt("b", 3); mapB.putInt("c", 4); mapA.mergeData(mapB); assertEquals(1, mapA.getInt("a")); assertEquals(2, mapA.getInt("b")); assertEquals(4, mapA.getInt("c")); } public void testPut() throws Exception { JsoMap map = JsoMap.createEmptyJsoMap(); map.put("a", "b"); assertEquals("b", map.get("a")); map.put("a", "c"); assertEquals("c", map.get("a")); } public void testPutInt() throws Exception { JsoMap map = JsoMap.createEmptyJsoMap(); map.putInt("a", 1); assertEquals(1, map.getInt("a")); map.putInt("a", 2); assertEquals(2, map.getInt("a")); } public void testPutObj() throws Exception { JsoMap map = JsoMap.createEmptyJsoMap(); JsoMap obj = JsoMap.createEmptyJsoMap(); obj.putInt("a", 1); map.putObj("b", obj); assertEquals(obj.toString(), map.getObj("b").toString()); obj.putInt("a", 2); map.putObj("b", obj); assertEquals(obj.toString(), map.getObj("b").toString()); } public void testString() throws Exception { JsoMap map = JsoMap.buildJsoMap(VALID_JSON); try { // This should fail on the integer "c" or the map "d". map.string(); fail("Expected IllegalArgumentException."); } catch (IllegalArgumentException e) { // Expected. } catch (ClassCastException e) { // Expected. } map.delKey("c"); try { // This should fail on the object "d". map.string(); fail("Expected ClassCastException."); } catch (ClassCastException e) { // Expected. } map.delKey("d"); assertEquals("JsoMap[\n(a:b)\n]", map.string()); } public void testMap() throws Exception { JsoMap map = JsoMap.buildJsoMap(VALID_JSON); try { // This should fail on the string "a" or the integer "c". map.map(); fail("Expected ClassCastException."); } catch (ClassCastException e) { // Expected. } catch (IllegalArgumentException e) { // Expected. } map.delKey("a"); try { // This should fail on the integer "c". map.map(); fail("Expected IllegalArgumentException."); } catch (IllegalArgumentException e) { // Expected. } map.delKey("c"); assertEquals("JsoMap[\n(d:JsoMap[\n(e:f)\n])\n]", map.map()); } }