1 /* 2 * Copyright (C) 2013 The Guava Authors 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except 5 * in compliance with the License. You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software distributed under the License 10 * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express 11 * or implied. See the License for the specific language governing permissions and limitations under 12 * the License. 13 */ 14 15 package com.google.common.collect.testing.google; 16 17 import static com.google.common.collect.testing.features.CollectionSize.ONE; 18 import static com.google.common.collect.testing.features.CollectionSize.ZERO; 19 import static com.google.common.collect.testing.features.MapFeature.ALLOWS_NULL_KEYS; 20 import static com.google.common.collect.testing.features.MapFeature.ALLOWS_NULL_VALUES; 21 22 import com.google.common.annotations.GwtCompatible; 23 import com.google.common.collect.Multimap; 24 import com.google.common.collect.testing.features.CollectionSize; 25 import com.google.common.collect.testing.features.MapFeature; 26 27 /** 28 * Tester for {@code Multimap.toString()}. 29 * 30 * @author Louis Wasserman 31 */ 32 @GwtCompatible 33 public class MultimapToStringTester<K, V> extends AbstractMultimapTester<K, V, Multimap<K, V>> { 34 @CollectionSize.Require(ZERO) 35 public void testToStringEmpty() { 36 assertEquals("{}", multimap().toString()); 37 } 38 39 @CollectionSize.Require(ONE) 40 public void testToStringSingleton() { 41 assertEquals("{" + sampleKeys().e0 + "=[" + sampleValues().e0 + "]}", multimap().toString()); 42 } 43 44 @CollectionSize.Require(absent = ZERO) 45 @MapFeature.Require(ALLOWS_NULL_KEYS) 46 public void testToStringWithNullKey() { 47 initMultimapWithNullKey(); 48 testToStringMatchesAsMap(); 49 } 50 51 @CollectionSize.Require(absent = ZERO) 52 @MapFeature.Require(ALLOWS_NULL_VALUES) 53 public void testToStringWithNullValue() { 54 initMultimapWithNullValue(); 55 testToStringMatchesAsMap(); 56 } 57 58 public void testToStringMatchesAsMap() { 59 assertEquals(multimap().asMap().toString(), multimap().toString()); 60 } 61 } 62
