/
CollectionIsEmptyTester.java
44 lines (39 loc) · 1.62 KB
/
CollectionIsEmptyTester.java
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
/*
* Copyright (C) 2007 The Guava Authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.common.collect.testing.testers;
import static com.google.common.collect.testing.features.CollectionSize.ZERO;
import com.google.common.annotations.GwtCompatible;
import com.google.common.collect.testing.AbstractCollectionTester;
import com.google.common.collect.testing.features.CollectionSize;
import org.junit.Ignore;
/**
* A generic JUnit test which tests {@code isEmpty()} operations on a collection. Can't be invoked
* directly; please see {@link com.google.common.collect.testing.CollectionTestSuiteBuilder}.
*
* @author Kevin Bourrillion
*/
@GwtCompatible
@Ignore // Affects only Android test runner, which respects JUnit 4 annotations on JUnit 3 tests.
public class CollectionIsEmptyTester<E> extends AbstractCollectionTester<E> {
@CollectionSize.Require(ZERO)
public void testIsEmpty_yes() {
assertTrue("isEmpty() should return true", collection.isEmpty());
}
@CollectionSize.Require(absent = ZERO)
public void testIsEmpty_no() {
assertFalse("isEmpty() should return false", collection.isEmpty());
}
}