/* * Copyright (C) 2008 The Guava Authors * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.google.common.collect.testing.testers; import static com.google.common.collect.testing.features.CollectionSize.ZERO; import static com.google.common.collect.testing.features.MapFeature.*; import com.google.common.collect.testing.AbstractMapTester; import com.google.common.collect.testing.WrongType; import com.google.common.collect.testing.features.CollectionSize; import com.google.common.collect.testing.features.MapFeature; /** * A generic JUnit test which tests {@code containsValue()} operations on a map. * Can't be invoked directly; please see * {@link com.google.common.collect.testing.MapTestSuiteBuilder}. * *

This class is GWT compatible. * * @author George van den Driessche * @author Chris Povirk */ public class MapContainsValueTester extends AbstractMapTester { @CollectionSize.Require(absent = ZERO) public void testContains_yes() { assertTrue("containsValue(present) should return true", getMap().containsValue(samples.e0.getValue())); } public void testContains_no() { assertFalse("containsValue(notPresent) should return false", getMap().containsValue(samples.e3.getValue())); } @MapFeature.Require(ALLOWS_NULL_QUERIES) public void testContains_nullNotContainedButAllowed() { assertFalse("containsValue(null) should return false", getMap().containsValue(null)); } @MapFeature.Require(absent = ALLOWS_NULL_QUERIES) public void testContains_nullNotContainedAndUnsupported() { expectNullValueMissingWhenNullValuesUnsupported( "containsValue(null) should return false or throw"); } @MapFeature.Require(ALLOWS_NULL_VALUES) @CollectionSize.Require(absent = ZERO) public void testContains_nonNullWhenNullContained() { initMapWithNullValue(); assertFalse("containsValue(notPresent) should return false", getMap().containsValue(samples.e3.getValue())); } @MapFeature.Require(ALLOWS_NULL_VALUES) @CollectionSize.Require(absent = ZERO) public void testContains_nullContained() { initMapWithNullValue(); assertTrue("containsValue(null) should return true", getMap().containsValue(null)); } public void testContains_wrongType() { try { //noinspection SuspiciousMethodCalls assertFalse("containsValue(wrongType) should return false or throw", getMap().containsValue(WrongType.VALUE)); } catch (ClassCastException tolerated) { } } }