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
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
|
/*
* Copyright (C) 2010 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.testing;
import static com.google.common.truth.Truth.assertThat;
import com.google.common.annotations.GwtCompatible;
import junit.framework.TestCase;
/** @author Luiz-Otavio "Z" Zorzella */
@GwtCompatible
public class TearDownStackTest extends TestCase {
private TearDownStack tearDownStack = new TearDownStack();
public void testSingleTearDown() throws Exception {
final TearDownStack stack = buildTearDownStack();
final SimpleTearDown tearDown = new SimpleTearDown();
stack.addTearDown(tearDown);
assertEquals(false, tearDown.ran);
stack.runTearDown();
assertEquals("tearDown should have run", true, tearDown.ran);
}
public void testMultipleTearDownsHappenInOrder() throws Exception {
final TearDownStack stack = buildTearDownStack();
final SimpleTearDown tearDownOne = new SimpleTearDown();
stack.addTearDown(tearDownOne);
final Callback callback =
new Callback() {
@Override
public void run() {
assertEquals(
"tearDownTwo should have been run before tearDownOne", false, tearDownOne.ran);
}
};
final SimpleTearDown tearDownTwo = new SimpleTearDown(callback);
stack.addTearDown(tearDownTwo);
assertEquals(false, tearDownOne.ran);
assertEquals(false, tearDownTwo.ran);
stack.runTearDown();
assertEquals("tearDownOne should have run", true, tearDownOne.ran);
assertEquals("tearDownTwo should have run", true, tearDownTwo.ran);
}
public void testThrowingTearDown() throws Exception {
final TearDownStack stack = buildTearDownStack();
final ThrowingTearDown tearDownOne = new ThrowingTearDown("one");
stack.addTearDown(tearDownOne);
final ThrowingTearDown tearDownTwo = new ThrowingTearDown("two");
stack.addTearDown(tearDownTwo);
assertEquals(false, tearDownOne.ran);
assertEquals(false, tearDownTwo.ran);
try {
stack.runTearDown();
fail("runTearDown should have thrown an exception");
} catch (ClusterException expected) {
assertThat(expected).hasCauseThat().hasMessageThat().isEqualTo("two");
} catch (RuntimeException e) {
throw new RuntimeException(
"A ClusterException should have been thrown, rather than a " + e.getClass().getName(), e);
}
assertEquals(true, tearDownOne.ran);
assertEquals(true, tearDownTwo.ran);
}
@Override
public final void runBare() throws Throwable {
try {
setUp();
runTest();
} finally {
tearDown();
}
}
@Override
protected void tearDown() {
tearDownStack.runTearDown();
}
/** Builds a {@link TearDownStack} that makes sure it's clear by the end of this test. */
private TearDownStack buildTearDownStack() {
final TearDownStack result = new TearDownStack();
tearDownStack.addTearDown(
new TearDown() {
@Override
public void tearDown() throws Exception {
synchronized (result.stack) {
assertEquals(
"The test should have cleared the stack (say, by virtue of running runTearDown)",
0,
result.stack.size());
}
}
});
return result;
}
private static final class ThrowingTearDown implements TearDown {
private final String id;
boolean ran = false;
ThrowingTearDown(String id) {
this.id = id;
}
@Override
public void tearDown() throws Exception {
ran = true;
throw new RuntimeException(id);
}
}
private static final class SimpleTearDown implements TearDown {
boolean ran = false;
Callback callback = null;
public SimpleTearDown() {}
public SimpleTearDown(Callback callback) {
this.callback = callback;
}
@Override
public void tearDown() throws Exception {
if (callback != null) {
callback.run();
}
ran = true;
}
}
private interface Callback {
void run();
}
}
|
