Java
45 строк · 1.7 Кб
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.CollectionSize.ZERO;20
21import com.google.common.annotations.GwtCompatible;22import com.google.common.collect.testing.AbstractCollectionTester;23import com.google.common.collect.testing.features.CollectionSize;24import org.junit.Ignore;25
26/**
27* A generic JUnit test which tests {@code isEmpty()} operations on a collection. Can't be invoked
28* directly; please see {@link com.google.common.collect.testing.CollectionTestSuiteBuilder}.
29*
30* @author Kevin Bourrillion
31*/
32@GwtCompatible
33@Ignore // Affects only Android test runner, which respects JUnit 4 annotations on JUnit 3 tests.34@SuppressWarnings("JUnit4ClassUsedInJUnit3")35public class CollectionIsEmptyTester<E> extends AbstractCollectionTester<E> {36@CollectionSize.Require(ZERO)37public void testIsEmpty_yes() {38assertTrue("isEmpty() should return true", collection.isEmpty());39}40
41@CollectionSize.Require(absent = ZERO)42public void testIsEmpty_no() {43assertFalse("isEmpty() should return false", collection.isEmpty());44}45}
46