001/*
002 * Copyright (C) 2013 The Guava Authors
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
005 * in compliance with the License. You may obtain a copy of the License at
006 *
007 * http://www.apache.org/licenses/LICENSE-2.0
008 *
009 * Unless required by applicable law or agreed to in writing, software distributed under the License
010 * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
011 * or implied. See the License for the specific language governing permissions and limitations under
012 * the License.
013 */
014
015package com.google.common.collect.testing.google;
016
017import static com.google.common.collect.testing.features.CollectionFeature.NON_STANDARD_TOSTRING;
018import static com.google.common.collect.testing.features.CollectionSize.ONE;
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_VALUES;
022
023import com.google.common.annotations.GwtCompatible;
024import com.google.common.collect.Multimap;
025import com.google.common.collect.testing.features.CollectionFeature;
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 {@code Multimap.toString()}.
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 MultimapToStringTester<K, V> extends AbstractMultimapTester<K, V, Multimap<K, V>> {
040  @CollectionSize.Require(ZERO)
041  @CollectionFeature.Require(absent = NON_STANDARD_TOSTRING)
042  public void testToStringEmpty() {
043    assertEquals("{}", multimap().toString());
044  }
045
046  @CollectionSize.Require(ONE)
047  @CollectionFeature.Require(absent = NON_STANDARD_TOSTRING)
048  public void testToStringSingleton() {
049    assertEquals("{" + k0() + "=[" + v0() + "]}", multimap().toString());
050  }
051
052  @CollectionSize.Require(absent = ZERO)
053  @CollectionFeature.Require(absent = NON_STANDARD_TOSTRING)
054  @MapFeature.Require(ALLOWS_NULL_KEYS)
055  public void testToStringWithNullKey() {
056    initMultimapWithNullKey();
057    testToStringMatchesAsMap();
058  }
059
060  @CollectionSize.Require(absent = ZERO)
061  @CollectionFeature.Require(absent = NON_STANDARD_TOSTRING)
062  @MapFeature.Require(ALLOWS_NULL_VALUES)
063  public void testToStringWithNullValue() {
064    initMultimapWithNullValue();
065    testToStringMatchesAsMap();
066  }
067
068  @CollectionFeature.Require(absent = NON_STANDARD_TOSTRING)
069  public void testToStringMatchesAsMap() {
070    assertEquals(multimap().asMap().toString(), multimap().toString());
071  }
072}