1 /* 2 * Copyright (C) 2011 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 package com.android.tradefed.util; 17 18 import junit.framework.TestCase; 19 20 import java.util.Map; 21 22 /** 23 * Unit tests for {@link MultiMap}. 24 */ 25 public class MultiMapTest extends TestCase { 26 27 /** 28 * Test for {@link MultiMap#getUniqueMap()}. 29 */ 30 public void testGetUniqueMap() { 31 MultiMap<String, String> multiMap = new MultiMap<String, String>(); 32 multiMap.put("key", "value1"); 33 multiMap.put("key", "value2"); 34 multiMap.put("uniquekey", "value"); 35 multiMap.put("key2", "collisionKeyvalue"); 36 Map<String, String> uniqueMap = multiMap.getUniqueMap(); 37 assertEquals(4, uniqueMap.size()); 38 // key's for value1, value2 and collisionKeyvalue might be one of three possible values, 39 // depending on order of collision resolvement 40 assertTrue(checkKeyForValue(uniqueMap, "value1")); 41 assertTrue(checkKeyForValue(uniqueMap, "value2")); 42 assertTrue(checkKeyForValue(uniqueMap, "collisionKeyvalue")); 43 // uniquekey should be unmodified 44 assertEquals("value", uniqueMap.get("uniquekey")); 45 } 46 47 /** 48 * Helper method testGetUniqueMap() for that will check that the given value's key matches 49 * one of the expected values 50 * 51 * @param uniqueMap 52 * @param value 53 * @return <code>true</code> if key matched one of the expected values 54 */ 55 private boolean checkKeyForValue(Map<String, String> uniqueMap, String value) { 56 for (Map.Entry<String, String> entry : uniqueMap.entrySet()) { 57 if (entry.getValue().equals(value)) { 58 String key = entry.getKey(); 59 return key.equals("key") || key.equals("key2") || key.equals("key2X"); 60 } 61 } 62 return false; 63 } 64 } 65
