| /* |
| * Copyright (C) 2007 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.testers; |
| |
| import static com.google.common.collect.testing.features.CollectionFeature.ALLOWS_NULL_VALUES; |
| import static com.google.common.collect.testing.features.CollectionFeature.FAILS_FAST_ON_CONCURRENT_MODIFICATION; |
| import static com.google.common.collect.testing.features.CollectionFeature.RESTRICTS_ELEMENTS; |
| import static com.google.common.collect.testing.features.CollectionFeature.SUPPORTS_ADD; |
| import static com.google.common.collect.testing.features.CollectionSize.ZERO; |
| import static java.util.Collections.singletonList; |
| |
| import com.google.common.annotations.GwtCompatible; |
| import com.google.common.annotations.GwtIncompatible; |
| import com.google.common.collect.testing.AbstractCollectionTester; |
| import com.google.common.collect.testing.Helpers; |
| import com.google.common.collect.testing.MinimalCollection; |
| import com.google.common.collect.testing.features.CollectionFeature; |
| import com.google.common.collect.testing.features.CollectionSize; |
| import java.lang.reflect.Method; |
| import java.util.ConcurrentModificationException; |
| import java.util.Iterator; |
| import java.util.List; |
| import org.junit.Ignore; |
| |
| /** |
| * A generic JUnit test which tests addAll operations on a collection. Can't be invoked directly; |
| * please see {@link com.google.common.collect.testing.CollectionTestSuiteBuilder}. |
| * |
| * @author Chris Povirk |
| * @author Kevin Bourrillion |
| */ |
| @SuppressWarnings("unchecked") // too many "unchecked generic array creations" |
| @GwtCompatible(emulated = true) |
| @Ignore // Affects only Android test runner, which respects JUnit 4 annotations on JUnit 3 tests. |
| public class CollectionAddAllTester<E> extends AbstractCollectionTester<E> { |
| @CollectionFeature.Require(SUPPORTS_ADD) |
| public void testAddAll_supportedNothing() { |
| assertFalse("addAll(nothing) should return false", collection.addAll(emptyCollection())); |
| expectUnchanged(); |
| } |
| |
| @CollectionFeature.Require(absent = SUPPORTS_ADD) |
| public void testAddAll_unsupportedNothing() { |
| try { |
| assertFalse( |
| "addAll(nothing) should return false or throw", collection.addAll(emptyCollection())); |
| } catch (UnsupportedOperationException tolerated) { |
| } |
| expectUnchanged(); |
| } |
| |
| @CollectionFeature.Require(SUPPORTS_ADD) |
| public void testAddAll_supportedNonePresent() { |
| assertTrue( |
| "addAll(nonePresent) should return true", collection.addAll(createDisjointCollection())); |
| expectAdded(e3(), e4()); |
| } |
| |
| @CollectionFeature.Require(absent = SUPPORTS_ADD) |
| public void testAddAll_unsupportedNonePresent() { |
| try { |
| collection.addAll(createDisjointCollection()); |
| fail("addAll(nonePresent) should throw"); |
| } catch (UnsupportedOperationException expected) { |
| } |
| expectUnchanged(); |
| expectMissing(e3(), e4()); |
| } |
| |
| @CollectionFeature.Require(SUPPORTS_ADD) |
| @CollectionSize.Require(absent = ZERO) |
| public void testAddAll_supportedSomePresent() { |
| assertTrue( |
| "addAll(somePresent) should return true", |
| collection.addAll(MinimalCollection.of(e3(), e0()))); |
| assertTrue("should contain " + e3(), collection.contains(e3())); |
| assertTrue("should contain " + e0(), collection.contains(e0())); |
| } |
| |
| @CollectionFeature.Require(absent = SUPPORTS_ADD) |
| @CollectionSize.Require(absent = ZERO) |
| public void testAddAll_unsupportedSomePresent() { |
| try { |
| collection.addAll(MinimalCollection.of(e3(), e0())); |
| fail("addAll(somePresent) should throw"); |
| } catch (UnsupportedOperationException expected) { |
| } |
| expectUnchanged(); |
| } |
| |
| @CollectionFeature.Require({SUPPORTS_ADD, FAILS_FAST_ON_CONCURRENT_MODIFICATION}) |
| @CollectionSize.Require(absent = ZERO) |
| public void testAddAllConcurrentWithIteration() { |
| try { |
| Iterator<E> iterator = collection.iterator(); |
| assertTrue(collection.addAll(MinimalCollection.of(e3(), e0()))); |
| iterator.next(); |
| fail("Expected ConcurrentModificationException"); |
| } catch (ConcurrentModificationException expected) { |
| // success |
| } |
| } |
| |
| @CollectionFeature.Require(absent = SUPPORTS_ADD) |
| @CollectionSize.Require(absent = ZERO) |
| public void testAddAll_unsupportedAllPresent() { |
| try { |
| assertFalse( |
| "addAll(allPresent) should return false or throw", |
| collection.addAll(MinimalCollection.of(e0()))); |
| } catch (UnsupportedOperationException tolerated) { |
| } |
| expectUnchanged(); |
| } |
| |
| @CollectionFeature.Require( |
| value = {SUPPORTS_ADD, ALLOWS_NULL_VALUES}, |
| absent = RESTRICTS_ELEMENTS) |
| public void testAddAll_nullSupported() { |
| List<E> containsNull = singletonList(null); |
| assertTrue("addAll(containsNull) should return true", collection.addAll(containsNull)); |
| /* |
| * We need (E) to force interpretation of null as the single element of a |
| * varargs array, not the array itself |
| */ |
| expectAdded((E) null); |
| } |
| |
| @CollectionFeature.Require(value = SUPPORTS_ADD, absent = ALLOWS_NULL_VALUES) |
| public void testAddAll_nullUnsupported() { |
| List<E> containsNull = singletonList(null); |
| try { |
| collection.addAll(containsNull); |
| fail("addAll(containsNull) should throw"); |
| } catch (NullPointerException expected) { |
| } |
| expectUnchanged(); |
| expectNullMissingWhenNullUnsupported( |
| "Should not contain null after unsupported addAll(containsNull)"); |
| } |
| |
| @CollectionFeature.Require(SUPPORTS_ADD) |
| public void testAddAll_nullCollectionReference() { |
| try { |
| collection.addAll(null); |
| fail("addAll(null) should throw NullPointerException"); |
| } catch (NullPointerException expected) { |
| } |
| } |
| |
| /** |
| * Returns the {@link Method} instance for {@link #testAddAll_nullUnsupported()} so that tests can |
| * suppress it with {@code FeatureSpecificTestSuiteBuilder.suppressing()} until <a |
| * href="http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=5045147">Sun bug 5045147</a> is fixed. |
| */ |
| @GwtIncompatible // reflection |
| public static Method getAddAllNullUnsupportedMethod() { |
| return Helpers.getMethod(CollectionAddAllTester.class, "testAddAll_nullUnsupported"); |
| } |
| |
| /** |
| * Returns the {@link Method} instance for {@link #testAddAll_unsupportedNonePresent()} so that |
| * tests can suppress it with {@code FeatureSpecificTestSuiteBuilder.suppressing()} while we |
| * figure out what to do with <a href="http://goo.gl/qJBruX">{@code ConcurrentHashMap} support for |
| * {@code entrySet().add()}</a>. |
| */ |
| @GwtIncompatible // reflection |
| public static Method getAddAllUnsupportedNonePresentMethod() { |
| return Helpers.getMethod(CollectionAddAllTester.class, "testAddAll_unsupportedNonePresent"); |
| } |
| |
| /** |
| * Returns the {@link Method} instance for {@link #testAddAll_unsupportedSomePresent()} so that |
| * tests can suppress it with {@code FeatureSpecificTestSuiteBuilder.suppressing()} while we |
| * figure out what to do with <a href="http://goo.gl/qJBruX">{@code ConcurrentHashMap} support for |
| * {@code entrySet().add()}</a>. |
| */ |
| @GwtIncompatible // reflection |
| public static Method getAddAllUnsupportedSomePresentMethod() { |
| return Helpers.getMethod(CollectionAddAllTester.class, "testAddAll_unsupportedSomePresent"); |
| } |
| } |