/*
* Copyright (C) 2008 Google Inc.
*
* 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;
import com.google.common.collect.testing.SampleElements;
import com.google.common.collect.testing.SampleElements.Unhashables;
import com.google.common.collect.testing.UnhashableObject;
import junit.framework.TestCase;
/**
* Tests for {@link ImmutableMultimap}.
*
* @author Jared Levy
*/
public class ImmutableMultimapTest extends TestCase {
// TODO: test ImmutableMultimap builder and factory methods
public void testCopyOf() {
ImmutableSetMultimap<String, String> setMultimap
= ImmutableSetMultimap.of("k1", "v1");
ImmutableMultimap<String, String> setMultimapCopy
= ImmutableMultimap.copyOf(setMultimap);
assertSame("copyOf(ImmutableSetMultimap) should not create a new instance",
setMultimap, setMultimapCopy);
ImmutableListMultimap<String, String> listMultimap
= ImmutableListMultimap.of("k1", "v1");
ImmutableMultimap<String, String> listMultimapCopy
= ImmutableMultimap.copyOf(listMultimap);
assertSame("copyOf(ImmutableListMultimap) should not create a new instance",
listMultimap, listMultimapCopy);
}
public void testUnhashableSingletonValue() {
SampleElements<UnhashableObject> unhashables = new Unhashables();
Multimap<Integer, UnhashableObject> multimap = ImmutableMultimap.of(
0, unhashables.e0);
assertEquals(1, multimap.get(0).size());
assertTrue(multimap.get(0).contains(unhashables.e0));
}
public void testUnhashableMixedValues() {
SampleElements<UnhashableObject> unhashables = new Unhashables();
Multimap<Integer, Object> multimap = ImmutableMultimap.<Integer, Object>of(
0, unhashables.e0, 2, "hey you", 0, unhashables.e1);
assertEquals(2, multimap.get(0).size());
assertTrue(multimap.get(0).contains(unhashables.e0));
assertTrue(multimap.get(0).contains(unhashables.e1));
assertTrue(multimap.get(2).contains("hey you"));
}
}