Coverage Summary for Class: QueuePollTester (com.google.common.collect.testing.testers)

1 /*
2  * Copyright (C) 2008 The Guava Authors
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package com.google.common.collect.testing.testers;
18 
19 import static com.google.common.collect.testing.features.CollectionFeature.KNOWN_ORDER;
20 import static com.google.common.collect.testing.features.CollectionFeature.SUPPORTS_REMOVE;
21 import static com.google.common.collect.testing.features.CollectionSize.ONE;
22 import static com.google.common.collect.testing.features.CollectionSize.SEVERAL;
23 import static com.google.common.collect.testing.features.CollectionSize.ZERO;
24 
25 import com.google.common.annotations.GwtCompatible;
26 import com.google.common.collect.testing.features.CollectionFeature;
27 import com.google.common.collect.testing.features.CollectionSize;
28 import org.junit.Ignore;
29 
30 /**
31  * A generic JUnit test which tests {@code poll()} operations on a queue. Can't be invoked directly;
32  * please see {@link com.google.common.collect.testing.CollectionTestSuiteBuilder}.
33  *
34  * @author Jared Levy
35  */
36 @SuppressWarnings("unchecked") // too many "unchecked generic array creations"
37 @GwtCompatible
38 @Ignore // Affects only Android test runner, which respects JUnit 4 annotations on JUnit 3 tests.
39 public class QueuePollTester<E> extends AbstractQueueTester<E> {
40   @CollectionFeature.Require(SUPPORTS_REMOVE)
41   @CollectionSize.Require(ZERO)
42   public void testPoll_empty() {
43     assertNull("emptyQueue.poll() should return null", getQueue().poll());
44     expectUnchanged();
45   }
46 
47   @CollectionFeature.Require(SUPPORTS_REMOVE)
48   @CollectionSize.Require(ONE)
49   public void testPoll_size1() {
50     assertEquals("size1Queue.poll() should return first element", e0(), getQueue().poll());
51     expectMissing(e0());
52   }
53 
54   @CollectionFeature.Require({KNOWN_ORDER, SUPPORTS_REMOVE})
55   @CollectionSize.Require(SEVERAL)
56   public void testPoll_sizeMany() {
57     assertEquals("sizeManyQueue.poll() should return first element", e0(), getQueue().poll());
58     expectMissing(e0());
59   }
60 }