001/* 002 * Copyright (C) 2017 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.SEVERAL; 020import static com.google.common.collect.testing.features.CollectionSize.ZERO; 021import static com.google.common.collect.testing.features.MapFeature.ALLOWS_NULL_VALUES; 022import static com.google.common.collect.testing.features.MapFeature.SUPPORTS_PUT; 023import static com.google.common.collect.testing.google.ReflectionFreeAssertThrows.assertThrows; 024 025import com.google.common.annotations.GwtCompatible; 026import com.google.common.collect.testing.features.CollectionSize; 027import com.google.common.collect.testing.features.MapFeature; 028import java.util.Map.Entry; 029import org.junit.Ignore; 030 031/** Tester for {@code BiMap.entrySet} and methods on the entries in the set. */ 032@GwtCompatible 033@Ignore("test runners must not instantiate and run this directly, only via suites we build") 034// @Ignore affects the Android test runner, which respects JUnit 4 annotations on JUnit 3 tests. 035@SuppressWarnings("JUnit4ClassUsedInJUnit3") 036public class BiMapEntrySetTester<K, V> extends AbstractBiMapTester<K, V> { 037 @MapFeature.Require(SUPPORTS_PUT) 038 @CollectionSize.Require(absent = ZERO) 039 public void testSetValue_valueAbsent() { 040 for (Entry<K, V> entry : getMap().entrySet()) { 041 if (entry.getKey().equals(k0())) { 042 assertEquals("entry.setValue() should return the old value", v0(), entry.setValue(v3())); 043 } 044 } 045 expectReplacement(entry(k0(), v3())); 046 } 047 048 @MapFeature.Require(SUPPORTS_PUT) 049 @CollectionSize.Require(SEVERAL) 050 public void testSetValue_valuePresent() { 051 for (Entry<K, V> entry : getMap().entrySet()) { 052 if (entry.getKey().equals(k0())) { 053 assertThrows(IllegalArgumentException.class, () -> entry.setValue(v1())); 054 } 055 } 056 expectUnchanged(); 057 } 058 059 @MapFeature.Require(value = SUPPORTS_PUT, absent = ALLOWS_NULL_VALUES) 060 @CollectionSize.Require(absent = ZERO) 061 public void testSetValueNullUnsupported() { 062 for (Entry<K, V> entry : getMap().entrySet()) { 063 assertThrows(NullPointerException.class, () -> entry.setValue(null)); 064 expectUnchanged(); 065 } 066 } 067 068 @MapFeature.Require({SUPPORTS_PUT, ALLOWS_NULL_VALUES}) 069 @CollectionSize.Require(absent = ZERO) 070 public void testSetValueNullSupported() { 071 for (Entry<K, V> entry : getMap().entrySet()) { 072 if (entry.getKey().equals(k0())) { 073 entry.setValue(null); 074 } 075 } 076 expectReplacement(entry(k0(), (V) null)); 077 } 078}