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; 022import static com.google.common.collect.testing.google.ReflectionFreeAssertThrows.assertThrows; 023 024import com.google.common.annotations.GwtCompatible; 025import com.google.common.collect.Multimap; 026import com.google.common.collect.testing.features.CollectionSize; 027import com.google.common.collect.testing.features.MapFeature; 028import org.junit.Ignore; 029 030/** 031 * Tester for the {@code containsKey} methods of {@code Multimap} and its {@code asMap()} view. 032 * 033 * @author Louis Wasserman 034 */ 035@GwtCompatible 036@Ignore("test runners must not instantiate and run this directly, only via suites we build") 037// @Ignore affects the Android test runner, which respects JUnit 4 annotations on JUnit 3 tests. 038@SuppressWarnings("JUnit4ClassUsedInJUnit3") 039public class MultimapContainsKeyTester<K, V> extends AbstractMultimapTester<K, V, Multimap<K, V>> { 040 @CollectionSize.Require(absent = ZERO) 041 public void testContainsKeyYes() { 042 assertTrue(multimap().containsKey(k0())); 043 } 044 045 public void testContainsKeyNo() { 046 assertFalse(multimap().containsKey(k3())); 047 } 048 049 public void testContainsKeysFromKeySet() { 050 for (K k : multimap().keySet()) { 051 assertTrue(multimap().containsKey(k)); 052 } 053 } 054 055 public void testContainsKeyAgreesWithGet() { 056 for (K k : sampleKeys()) { 057 assertEquals(!multimap().get(k).isEmpty(), multimap().containsKey(k)); 058 } 059 } 060 061 public void testContainsKeyAgreesWithAsMap() { 062 for (K k : sampleKeys()) { 063 assertEquals(multimap().containsKey(k), multimap().asMap().containsKey(k)); 064 } 065 } 066 067 public void testContainsKeyAgreesWithKeySet() { 068 for (K k : sampleKeys()) { 069 assertEquals(multimap().containsKey(k), multimap().keySet().contains(k)); 070 } 071 } 072 073 @MapFeature.Require(ALLOWS_NULL_KEYS) 074 @CollectionSize.Require(absent = ZERO) 075 public void testContainsKeyNullPresent() { 076 initMultimapWithNullKey(); 077 assertTrue(multimap().containsKey(null)); 078 } 079 080 @MapFeature.Require(ALLOWS_NULL_KEY_QUERIES) 081 public void testContainsKeyNullAbsent() { 082 assertFalse(multimap().containsKey(null)); 083 } 084 085 @MapFeature.Require(absent = ALLOWS_NULL_KEY_QUERIES) 086 public void testContainsKeyNullDisallowed() { 087 assertThrows(NullPointerException.class, () -> multimap().containsKey(null)); 088 } 089}