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Java example source code file (MultimapPutAllMultimapTester.java)
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The MultimapPutAllMultimapTester.java Java example source code
/*
* Copyright (C) 2013 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.google;
import static com.google.common.collect.testing.Helpers.assertContains;
import static com.google.common.collect.testing.features.MapFeature.ALLOWS_NULL_KEYS;
import static com.google.common.collect.testing.features.MapFeature.ALLOWS_NULL_VALUES;
import static com.google.common.collect.testing.features.MapFeature.SUPPORTS_PUT;
import com.google.common.annotations.GwtCompatible;
import com.google.common.collect.Multimap;
import com.google.common.collect.testing.Helpers;
import com.google.common.collect.testing.features.MapFeature;
import java.util.Collection;
/**
* Tester for {@link Multimap#putAll(Multimap)}.
*
* @author Louis Wasserman
*/
@GwtCompatible
public class MultimapPutAllMultimapTester<K, V>
extends AbstractMultimapTester<K, V, Multimap {
@MapFeature.Require(absent = SUPPORTS_PUT)
public void testPutUnsupported() {
try {
multimap().putAll(getSubjectGenerator().create(Helpers.mapEntry(k3(), v3())));
fail("Expected UnsupportedOperationException");
} catch (UnsupportedOperationException expected) {
}
}
@MapFeature.Require(SUPPORTS_PUT)
public void testPutAllIntoEmpty() {
Multimap<K, V> target = getSubjectGenerator().create();
assertEquals(!multimap().isEmpty(), target.putAll(multimap()));
assertEquals(multimap(), target);
}
@MapFeature.Require(SUPPORTS_PUT)
public void testPutAll() {
Multimap<K, V> source =
getSubjectGenerator().create(Helpers.mapEntry(k0(), v3()), Helpers.mapEntry(k3(), v3()));
assertTrue(multimap().putAll(source));
assertTrue(multimap().containsEntry(k0(), v3()));
assertTrue(multimap().containsEntry(k3(), v3()));
}
@MapFeature.Require({SUPPORTS_PUT, ALLOWS_NULL_VALUES})
public void testPutAllWithNullValue() {
Multimap<K, V> source = getSubjectGenerator().create(Helpers.mapEntry(k0(), null));
assertTrue(multimap().putAll(source));
assertTrue(multimap().containsEntry(k0(), null));
}
@MapFeature.Require({SUPPORTS_PUT, ALLOWS_NULL_KEYS})
public void testPutAllWithNullKey() {
Multimap<K, V> source = getSubjectGenerator().create(Helpers.mapEntry(null, v0()));
assertTrue(multimap().putAll(source));
assertTrue(multimap().containsEntry(null, v0()));
}
@MapFeature.Require(value = SUPPORTS_PUT, absent = ALLOWS_NULL_VALUES)
public void testPutAllRejectsNullValue() {
Multimap<K, V> source = getSubjectGenerator().create(Helpers.mapEntry(k0(), null));
try {
multimap().putAll(source);
fail("Expected NullPointerException");
} catch (NullPointerException expected) {
}
expectUnchanged();
}
@MapFeature.Require(value = SUPPORTS_PUT, absent = ALLOWS_NULL_KEYS)
public void testPutAllRejectsNullKey() {
Multimap<K, V> source = getSubjectGenerator().create(Helpers.mapEntry(null, v0()));
try {
multimap().putAll(source);
fail("Expected NullPointerException");
} catch (NullPointerException expected) {
}
expectUnchanged();
}
@MapFeature.Require(SUPPORTS_PUT)
public void testPutAllPropagatesToGet() {
Multimap<K, V> source =
getSubjectGenerator().create(Helpers.mapEntry(k0(), v3()), Helpers.mapEntry(k3(), v3()));
Collection<V> getCollection = multimap().get(k0());
int getCollectionSize = getCollection.size();
assertTrue(multimap().putAll(source));
assertEquals(getCollectionSize + 1, getCollection.size());
assertContains(getCollection, v3());
}
}
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