88 lines
2.6 KiB
Java
88 lines
2.6 KiB
Java
/*
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* Copyright (C) 2011 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 static com.google.common.util.concurrent.Uninterruptibles.awaitUninterruptibly;
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import com.google.common.annotations.GwtCompatible;
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import com.google.common.annotations.GwtIncompatible;
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import com.google.common.base.Function;
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import com.google.common.testing.NullPointerTester;
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import java.util.Map;
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import java.util.concurrent.ConcurrentHashMap;
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import java.util.concurrent.CountDownLatch;
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import junit.framework.TestCase;
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/** @author Charles Fry */
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@GwtCompatible(emulated = true)
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public class MapMakerTest extends TestCase {
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@GwtIncompatible // NullPointerTester
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public void testNullParameters() throws Exception {
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NullPointerTester tester = new NullPointerTester();
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tester.testAllPublicInstanceMethods(new MapMaker());
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}
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@GwtIncompatible // threads
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static final class DelayingIdentityLoader<T> implements Function<T, T> {
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private final CountDownLatch delayLatch;
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DelayingIdentityLoader(CountDownLatch delayLatch) {
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this.delayLatch = delayLatch;
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}
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@Override
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public T apply(T key) {
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awaitUninterruptibly(delayLatch);
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return key;
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}
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}
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/*
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* TODO(cpovirk): eliminate duplication between these tests and those in LegacyMapMakerTests and
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* anywhere else
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*/
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/** Tests for the builder. */
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public static class MakerTest extends TestCase {
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public void testInitialCapacity_negative() {
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MapMaker maker = new MapMaker();
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try {
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maker.initialCapacity(-1);
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fail();
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} catch (IllegalArgumentException expected) {
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}
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}
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// TODO(cpovirk): enable when ready
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public void xtestInitialCapacity_setTwice() {
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MapMaker maker = new MapMaker().initialCapacity(16);
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try {
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// even to the same value is not allowed
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maker.initialCapacity(16);
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fail();
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} catch (IllegalArgumentException expected) {
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}
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}
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public void testReturnsPlainConcurrentHashMapWhenPossible() {
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Map<?, ?> map = new MapMaker().initialCapacity(5).makeMap();
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assertTrue(map instanceof ConcurrentHashMap);
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}
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}
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}
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