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

1 /*
2  * Copyright (C) 2007 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.ALLOWS_NULL_VALUES;
20 import static com.google.common.collect.testing.features.CollectionSize.ZERO;
21 
22 import com.google.common.annotations.GwtCompatible;
23 import com.google.common.collect.testing.WrongType;
24 import com.google.common.collect.testing.features.CollectionFeature;
25 import com.google.common.collect.testing.features.CollectionSize;
26 import org.junit.Ignore;
27 
28 /**
29  * Common parent class for {@link ListIndexOfTester} and {@link ListLastIndexOfTester}.
30  *
31  * @author Chris Povirk
32  */
33 @GwtCompatible
34 @Ignore // Affects only Android test runner, which respects JUnit 4 annotations on JUnit 3 tests.
35 public abstract class AbstractListIndexOfTester<E> extends AbstractListTester<E> {
36   /** Override to call {@code indexOf()} or {@code lastIndexOf()}. */
37   protected abstract int find(Object o);
38 
39   /** Override to return "indexOf" or "lastIndexOf()" for use in failure messages. */
40   protected abstract String getMethodName();
41 
42   @CollectionSize.Require(absent = ZERO)
43   public void testFind_yes() {
44     assertEquals(
45         getMethodName() + "(firstElement) should return 0", 0, find(getOrderedElements().get(0)));
46   }
47 
48   public void testFind_no() {
49     assertEquals(getMethodName() + "(notPresent) should return -1", -1, find(e3()));
50   }
51 
52   @CollectionFeature.Require(ALLOWS_NULL_VALUES)
53   public void testFind_nullNotContainedButSupported() {
54     assertEquals(getMethodName() + "(nullNotPresent) should return -1", -1, find(null));
55   }
56 
57   @CollectionFeature.Require(absent = ALLOWS_NULL_VALUES)
58   public void testFind_nullNotContainedAndUnsupported() {
59     try {
60       assertEquals(getMethodName() + "(nullNotPresent) should return -1 or throw", -1, find(null));
61     } catch (NullPointerException tolerated) {
62     }
63   }
64 
65   @CollectionFeature.Require(ALLOWS_NULL_VALUES)
66   @CollectionSize.Require(absent = ZERO)
67   public void testFind_nonNullWhenNullContained() {
68     initCollectionWithNullElement();
69     assertEquals(getMethodName() + "(notPresent) should return -1", -1, find(e3()));
70   }
71 
72   @CollectionFeature.Require(ALLOWS_NULL_VALUES)
73   @CollectionSize.Require(absent = ZERO)
74   public void testFind_nullContained() {
75     initCollectionWithNullElement();
76     assertEquals(
77         getMethodName() + "(null) should return " + getNullLocation(),
78         getNullLocation(),
79         find(null));
80   }
81 
82   public void testFind_wrongType() {
83     try {
84       assertEquals(
85           getMethodName() + "(wrongType) should return -1 or throw", -1, find(WrongType.VALUE));
86     } catch (ClassCastException tolerated) {
87     }
88   }
89 }