| /* |
| * Copyright (C) 2008 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.SUPPORTS_ADD; |
| |
| import com.google.common.annotations.GwtCompatible; |
| import com.google.common.collect.testing.features.CollectionFeature; |
| import org.junit.Ignore; |
| |
| /** |
| * A generic JUnit test which tests offer operations on a queue. Can't be invoked directly; please |
| * see {@link com.google.common.collect.testing.CollectionTestSuiteBuilder}. |
| * |
| * @author Jared Levy |
| */ |
| @SuppressWarnings("unchecked") // too many "unchecked generic array creations" |
| @GwtCompatible |
| @Ignore // Affects only Android test runner, which respects JUnit 4 annotations on JUnit 3 tests. |
| public class QueueOfferTester<E> extends AbstractQueueTester<E> { |
| @CollectionFeature.Require(SUPPORTS_ADD) |
| public void testOffer_supportedNotPresent() { |
| assertTrue("offer(notPresent) should return true", getQueue().offer(e3())); |
| expectAdded(e3()); |
| } |
| |
| @CollectionFeature.Require({SUPPORTS_ADD, ALLOWS_NULL_VALUES}) |
| public void testOffer_nullSupported() { |
| assertTrue("offer(null) should return true", getQueue().offer(null)); |
| expectAdded((E) null); |
| } |
| |
| @CollectionFeature.Require(value = SUPPORTS_ADD, absent = ALLOWS_NULL_VALUES) |
| public void testOffer_nullUnsupported() { |
| try { |
| getQueue().offer(null); |
| fail("offer(null) should throw"); |
| } catch (NullPointerException expected) { |
| } |
| expectUnchanged(); |
| expectNullMissingWhenNullUnsupported("Should not contain null after unsupported offer(null)"); |
| } |
| } |