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.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.
34public class CollectionIsEmptyTester<E> extends AbstractCollectionTester<E> {
35@CollectionSize.Require(ZERO)
36public void testIsEmpty_yes() {
37assertTrue("isEmpty() should return true", collection.isEmpty());
38}
39
40@CollectionSize.Require(absent = ZERO)
41public void testIsEmpty_no() {
42assertFalse("isEmpty() should return false", collection.isEmpty());
43}
44}
45