001/* 002 * Copyright (C) 2008 The Guava Authors 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016 017package com.google.common.collect.testing.testers; 018 019import static com.google.common.collect.testing.features.CollectionSize.ZERO; 020import static com.google.common.collect.testing.features.MapFeature.ALLOWS_NULL_VALUES; 021import static com.google.common.collect.testing.features.MapFeature.ALLOWS_NULL_VALUE_QUERIES; 022 023import com.google.common.annotations.GwtCompatible; 024import com.google.common.collect.testing.AbstractMapTester; 025import com.google.common.collect.testing.WrongType; 026import com.google.common.collect.testing.features.CollectionSize; 027import com.google.common.collect.testing.features.MapFeature; 028import org.junit.Ignore; 029 030/** 031 * A generic JUnit test which tests {@code containsValue()} operations on a map. Can't be invoked 032 * directly; please see {@link com.google.common.collect.testing.MapTestSuiteBuilder}. 033 * 034 * @author George van den Driessche 035 * @author Chris Povirk 036 */ 037@GwtCompatible 038@Ignore // Affects only Android test runner, which respects JUnit 4 annotations on JUnit 3 tests. 039public class MapContainsValueTester<K, V> extends AbstractMapTester<K, V> { 040 @CollectionSize.Require(absent = ZERO) 041 public void testContains_yes() { 042 assertTrue("containsValue(present) should return true", getMap().containsValue(v0())); 043 } 044 045 public void testContains_no() { 046 assertFalse("containsValue(notPresent) should return false", getMap().containsValue(v3())); 047 } 048 049 @MapFeature.Require(ALLOWS_NULL_VALUE_QUERIES) 050 public void testContains_nullNotContainedButAllowed() { 051 assertFalse("containsValue(null) should return false", getMap().containsValue(null)); 052 } 053 054 @MapFeature.Require(absent = ALLOWS_NULL_VALUE_QUERIES) 055 public void testContains_nullNotContainedAndUnsupported() { 056 expectNullValueMissingWhenNullValuesUnsupported( 057 "containsValue(null) should return false or throw"); 058 } 059 060 @MapFeature.Require(ALLOWS_NULL_VALUES) 061 @CollectionSize.Require(absent = ZERO) 062 public void testContains_nonNullWhenNullContained() { 063 initMapWithNullValue(); 064 assertFalse("containsValue(notPresent) should return false", getMap().containsValue(v3())); 065 } 066 067 @MapFeature.Require(ALLOWS_NULL_VALUES) 068 @CollectionSize.Require(absent = ZERO) 069 public void testContains_nullContained() { 070 initMapWithNullValue(); 071 assertTrue("containsValue(null) should return true", getMap().containsValue(null)); 072 } 073 074 public void testContains_wrongType() { 075 try { 076 // noinspection SuspiciousMethodCalls 077 assertFalse( 078 "containsValue(wrongType) should return false or throw", 079 getMap().containsValue(WrongType.VALUE)); 080 } catch (ClassCastException tolerated) { 081 } 082 } 083}