guava
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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
17package com.google.common.collect.testing.testers;
18
19import static com.google.common.collect.testing.features.CollectionFeature.ALLOWS_NULL_VALUES;
20import static com.google.common.collect.testing.features.CollectionFeature.SUPPORTS_ADD;
21import static com.google.common.collect.testing.features.CollectionSize.ZERO;
22
23import com.google.common.annotations.GwtCompatible;
24import com.google.common.annotations.GwtIncompatible;
25import com.google.common.annotations.J2ktIncompatible;
26import com.google.common.collect.testing.Helpers;
27import com.google.common.collect.testing.features.CollectionFeature;
28import com.google.common.collect.testing.features.CollectionSize;
29import java.lang.reflect.Method;
30import org.junit.Ignore;
31
32/**
33* A generic JUnit test which tests add operations on a set. Can't be invoked directly; please see
34* {@link com.google.common.collect.testing.SetTestSuiteBuilder}.
35*
36* @author Kevin Bourrillion
37*/
38@GwtCompatible(emulated = true)
39@Ignore // Affects only Android test runner, which respects JUnit 4 annotations on JUnit 3 tests.
40public class SetAddTester<E> extends AbstractSetTester<E> {
41@CollectionFeature.Require(SUPPORTS_ADD)
42@CollectionSize.Require(absent = ZERO)
43public void testAdd_supportedPresent() {
44assertFalse("add(present) should return false", getSet().add(e0()));
45expectUnchanged();
46}
47
48@CollectionFeature.Require(value = {SUPPORTS_ADD, ALLOWS_NULL_VALUES})
49@CollectionSize.Require(absent = ZERO)
50public void testAdd_supportedNullPresent() {
51E[] array = createArrayWithNullElement();
52collection = getSubjectGenerator().create(array);
53assertFalse("add(nullPresent) should return false", getSet().add(null));
54expectContents(array);
55}
56
57/**
58* Returns the {@link Method} instance for {@link #testAdd_supportedNullPresent()} so that tests
59* can suppress it. See {@link CollectionAddTester#getAddNullSupportedMethod()} for details.
60*/
61@J2ktIncompatible
62@GwtIncompatible // reflection
63public static Method getAddSupportedNullPresentMethod() {
64return Helpers.getMethod(SetAddTester.class, "testAdd_supportedNullPresent");
65}
66}
67