001/* 002 * Copyright (C) 2012 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.google; 018 019import static com.google.common.collect.testing.features.CollectionSize.ZERO; 020import static com.google.common.collect.testing.features.MapFeature.ALLOWS_NULL_KEYS; 021import static com.google.common.collect.testing.features.MapFeature.ALLOWS_NULL_KEY_QUERIES; 022 023import com.google.common.annotations.GwtCompatible; 024import com.google.common.collect.Multimap; 025import com.google.common.collect.testing.features.CollectionSize; 026import com.google.common.collect.testing.features.MapFeature; 027import org.junit.Ignore; 028 029/** 030 * Tester for the {@code containsKey} methods of {@code Multimap} and its {@code asMap()} view. 031 * 032 * @author Louis Wasserman 033 */ 034@GwtCompatible 035@Ignore // Affects only Android test runner, which respects JUnit 4 annotations on JUnit 3 tests. 036public class MultimapContainsKeyTester<K, V> extends AbstractMultimapTester<K, V, Multimap<K, V>> { 037 @CollectionSize.Require(absent = ZERO) 038 public void testContainsKeyYes() { 039 assertTrue(multimap().containsKey(k0())); 040 } 041 042 public void testContainsKeyNo() { 043 assertFalse(multimap().containsKey(k3())); 044 } 045 046 public void testContainsKeysFromKeySet() { 047 for (K k : multimap().keySet()) { 048 assertTrue(multimap().containsKey(k)); 049 } 050 } 051 052 public void testContainsKeyAgreesWithGet() { 053 for (K k : sampleKeys()) { 054 assertEquals(!multimap().get(k).isEmpty(), multimap().containsKey(k)); 055 } 056 } 057 058 public void testContainsKeyAgreesWithAsMap() { 059 for (K k : sampleKeys()) { 060 assertEquals(multimap().containsKey(k), multimap().asMap().containsKey(k)); 061 } 062 } 063 064 public void testContainsKeyAgreesWithKeySet() { 065 for (K k : sampleKeys()) { 066 assertEquals(multimap().containsKey(k), multimap().keySet().contains(k)); 067 } 068 } 069 070 @MapFeature.Require(ALLOWS_NULL_KEYS) 071 @CollectionSize.Require(absent = ZERO) 072 public void testContainsKeyNullPresent() { 073 initMultimapWithNullKey(); 074 assertTrue(multimap().containsKey(null)); 075 } 076 077 @MapFeature.Require(ALLOWS_NULL_KEY_QUERIES) 078 public void testContainsKeyNullAbsent() { 079 assertFalse(multimap().containsKey(null)); 080 } 081 082 @MapFeature.Require(absent = ALLOWS_NULL_KEY_QUERIES) 083 public void testContainsKeyNullDisallowed() { 084 try { 085 multimap().containsKey(null); 086 fail("Expected NullPointerException"); 087 } catch (NullPointerException expected) { 088 // success 089 } 090 } 091}