92 lines
3.0 KiB
Java
92 lines
3.0 KiB
Java
/*
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* Copyright (C) 2008 The Guava Authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.google.common.collect;
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import com.google.common.annotations.GwtCompatible;
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import com.google.common.collect.testing.MapInterfaceTest;
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import java.util.Collection;
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import java.util.Map;
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/**
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* Test {@link Multimap#asMap()} for an arbitrary multimap with {@link MapInterfaceTest}.
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*
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* @author George van den Driessche
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* @author Jared Levy
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*/
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@GwtCompatible
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public abstract class AbstractMultimapAsMapImplementsMapTest
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extends MapInterfaceTest<String, Collection<Integer>> {
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public AbstractMultimapAsMapImplementsMapTest(
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boolean modifiable, boolean allowsNulls, boolean supportsIteratorRemove) {
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super(allowsNulls, allowsNulls, false, modifiable, modifiable, supportsIteratorRemove);
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}
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protected void populate(Multimap<String, Integer> multimap) {
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multimap.put("one", 1);
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multimap.put("two", 2);
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multimap.put("two", 22);
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multimap.put("three", 3);
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multimap.put("three", 33);
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multimap.put("three", 333);
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}
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@Override
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protected String getKeyNotInPopulatedMap() throws UnsupportedOperationException {
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return "zero";
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}
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@Override
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protected Collection<Integer> getValueNotInPopulatedMap() throws UnsupportedOperationException {
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return Lists.newArrayList(0);
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}
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/**
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* The version of this test supplied by {@link MapInterfaceTest} fails for this particular Map
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* implementation, because {@code map.get()} returns a view collection that changes in the course
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* of a call to {@code remove()}. Thus, the expectation doesn't hold that {@code map.remove(x)}
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* returns the same value which {@code map.get(x)} did immediately beforehand.
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*/
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@Override
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public void testRemove() {
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final Map<String, Collection<Integer>> map;
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final String keyToRemove;
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try {
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map = makePopulatedMap();
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} catch (UnsupportedOperationException e) {
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return;
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}
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keyToRemove = map.keySet().iterator().next();
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if (supportsRemove) {
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int initialSize = map.size();
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map.get(keyToRemove);
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map.remove(keyToRemove);
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// This line doesn't hold - see the Javadoc comments above.
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// assertEquals(expectedValue, oldValue);
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assertFalse(map.containsKey(keyToRemove));
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assertEquals(initialSize - 1, map.size());
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} else {
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try {
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map.remove(keyToRemove);
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fail("Expected UnsupportedOperationException.");
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} catch (UnsupportedOperationException expected) {
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}
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}
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assertInvariants(map);
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}
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}
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