1 /* 2 * Copyright (C) 2008 The Guava Authors 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.google.common.collect.testing.testers; 18 19 import static com.google.common.collect.testing.features.CollectionSize.ZERO; 20 import static com.google.common.collect.testing.features.MapFeature.ALLOWS_NULL_KEYS; 21 import static com.google.common.collect.testing.features.MapFeature.ALLOWS_NULL_KEY_QUERIES; 22 23 import com.google.common.annotations.GwtCompatible; 24 import com.google.common.collect.testing.AbstractMapTester; 25 import com.google.common.collect.testing.WrongType; 26 import com.google.common.collect.testing.features.CollectionSize; 27 import com.google.common.collect.testing.features.MapFeature; 28 import org.junit.Ignore; 29 30 /** 31 * A generic JUnit test which tests {@code containsKey()} operations on a map. Can't be invoked 32 * directly; please see {@link com.google.common.collect.testing.MapTestSuiteBuilder}. 33 * 34 * @author George van den Driessche 35 */ 36 @GwtCompatible 37 @Ignore // Affects only Android test runner, which respects JUnit 4 annotations on JUnit 3 tests. 38 public class MapContainsKeyTester<K, V> extends AbstractMapTester<K, V> { 39 @CollectionSize.Require(absent = ZERO) testContains_yes()40 public void testContains_yes() { 41 assertTrue("containsKey(present) should return true", getMap().containsKey(k0())); 42 } 43 testContains_no()44 public void testContains_no() { 45 assertFalse("containsKey(notPresent) should return false", getMap().containsKey(k3())); 46 } 47 48 @MapFeature.Require(ALLOWS_NULL_KEY_QUERIES) testContains_nullNotContainedButAllowed()49 public void testContains_nullNotContainedButAllowed() { 50 assertFalse("containsKey(null) should return false", getMap().containsKey(null)); 51 } 52 53 @MapFeature.Require(absent = ALLOWS_NULL_KEY_QUERIES) testContains_nullNotContainedAndUnsupported()54 public void testContains_nullNotContainedAndUnsupported() { 55 expectNullKeyMissingWhenNullKeysUnsupported("containsKey(null) should return false or throw"); 56 } 57 58 @MapFeature.Require(ALLOWS_NULL_KEYS) 59 @CollectionSize.Require(absent = ZERO) testContains_nonNullWhenNullContained()60 public void testContains_nonNullWhenNullContained() { 61 initMapWithNullKey(); 62 assertFalse("containsKey(notPresent) should return false", getMap().containsKey(k3())); 63 } 64 65 @MapFeature.Require(ALLOWS_NULL_KEYS) 66 @CollectionSize.Require(absent = ZERO) testContains_nullContained()67 public void testContains_nullContained() { 68 initMapWithNullKey(); 69 assertTrue("containsKey(null) should return true", getMap().containsKey(null)); 70 } 71 testContains_wrongType()72 public void testContains_wrongType() { 73 try { 74 // noinspection SuspiciousMethodCalls 75 assertFalse( 76 "containsKey(wrongType) should return false or throw", 77 getMap().containsKey(WrongType.VALUE)); 78 } catch (ClassCastException tolerated) { 79 } 80 } 81 } 82