11d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert/* 21d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * Copyright (C) 2008 The Guava Authors 31d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * 41d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * Licensed under the Apache License, Version 2.0 (the "License"); 51d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * you may not use this file except in compliance with the License. 61d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * You may obtain a copy of the License at 71d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * 81d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * http://www.apache.org/licenses/LICENSE-2.0 91d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * 101d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * Unless required by applicable law or agreed to in writing, software 111d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * distributed under the License is distributed on an "AS IS" BASIS, 121d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 131d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * See the License for the specific language governing permissions and 141d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * limitations under the License. 151d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert */ 161d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 171d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringertpackage com.google.common.collect.testing.testers; 181d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 191d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringertimport static com.google.common.collect.testing.features.CollectionFeature.KNOWN_ORDER; 201d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringertimport static com.google.common.collect.testing.features.CollectionFeature.SUPPORTS_REMOVE; 211d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringertimport static com.google.common.collect.testing.features.CollectionSize.ONE; 221d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringertimport static com.google.common.collect.testing.features.CollectionSize.SEVERAL; 231d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringertimport static com.google.common.collect.testing.features.CollectionSize.ZERO; 241d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 251d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringertimport com.google.common.collect.testing.features.CollectionFeature; 261d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringertimport com.google.common.collect.testing.features.CollectionSize; 271d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 281d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert/** 291d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * A generic JUnit test which tests {@code poll()} operations on a queue. 301d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * Can't be invoked directly; please see 311d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * {@link com.google.common.collect.testing.CollectionTestSuiteBuilder}. 321d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * 331d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * <p>This class is GWT compatible. 341d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * 351d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert * @author Jared Levy 361d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert */ 371d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert@SuppressWarnings("unchecked") // too many "unchecked generic array creations" 381d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringertpublic class QueuePollTester<E> extends AbstractQueueTester<E> { 391d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert @CollectionFeature.Require(SUPPORTS_REMOVE) 401d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert @CollectionSize.Require(ZERO) 411d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert public void testPoll_empty() { 421d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert assertNull("emptyQueue.poll() should return null", getQueue().poll()); 431d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert expectUnchanged(); 441d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 451d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 461d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert @CollectionFeature.Require(SUPPORTS_REMOVE) 471d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert @CollectionSize.Require(ONE) 481d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert public void testPoll_size1() { 491d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert assertEquals("size1Queue.poll() should return first element", 501d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert samples.e0, getQueue().poll()); 511d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert expectMissing(samples.e0); 521d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 531d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert 541d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert @CollectionFeature.Require({KNOWN_ORDER, SUPPORTS_REMOVE}) 551d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert @CollectionSize.Require(SEVERAL) 561d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert public void testPoll_sizeMany() { 571d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert assertEquals("sizeManyQueue.poll() should return first element", 581d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert samples.e0, getQueue().poll()); 591d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert expectMissing(samples.e0); 601d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert } 611d580d0f6ee4f21eb309ba7b509d2c6d671c4044Bjorn Bringert} 62