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/*
* Copyright (C) 2012 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;
import junit.framework.TestCase;
import java.util.IdentityHashMap;
import java.util.Iterator;
import java.util.Map.Entry;
/**
* Tests for {@code AbstractBiMap}.
*
* @author Mike Bostock
*/
public class AbstractBiMapTest extends TestCase {
// The next two tests verify that map entries are not accessed after they're
// removed, since IdentityHashMap throws an exception when that occurs.
public void testIdentityKeySetIteratorRemove() {
BiMap<Integer, String> bimap = new AbstractBiMap<Integer, String>(
new IdentityHashMap<Integer, String>(),
new IdentityHashMap<String, Integer>()) {};
bimap.put(1, "one");
bimap.put(2, "two");
bimap.put(3, "three");
Iterator<Integer> iterator = bimap.keySet().iterator();
iterator.next();
iterator.next();
iterator.remove();
iterator.next();
iterator.remove();
assertEquals(1, bimap.size());
assertEquals(1, bimap.inverse().size());
}
public void testIdentityEntrySetIteratorRemove() {
BiMap<Integer, String> bimap = new AbstractBiMap<Integer, String>(
new IdentityHashMap<Integer, String>(),
new IdentityHashMap<String, Integer>()) {};
bimap.put(1, "one");
bimap.put(2, "two");
bimap.put(3, "three");
Iterator<Entry<Integer, String>> iterator = bimap.entrySet().iterator();
iterator.next();
iterator.next();
iterator.remove();
iterator.next();
iterator.remove();
assertEquals(1, bimap.size());
assertEquals(1, bimap.inverse().size());
}
}
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