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
170
171
172
|
// Copyright 2015 The Bazel Authors. All rights reserved.
//
// 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.devtools.build.lib.shell;
import static com.google.common.truth.Truth.assertThat;
import static org.junit.Assert.assertSame;
import static org.junit.Assert.fail;
import com.google.devtools.build.lib.shell.Consumers.OutErrConsumers;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.logging.Level;
import java.util.logging.Logger;
@RunWith(JUnit4.class)
public class ConsumersTest {
@Before
public void setUp() throws Exception {
// enable all log statements to ensure there are no problems with
// logging code
Logger.getLogger("com.google.devtools.build.lib.shell.Command").setLevel(Level.FINEST);
}
private static final String SECRET_MESSAGE = "This is a secret message.";
/**
* Tests that if an IOException occurs in an output stream, the exception
* will be recorded and thrown when we call waitForCompletion.
*/
@Test
public void testAsynchronousIOExceptionInConsumerOutputStream() {
OutputStream out = new OutputStream() {
@Override
public void write(int b) throws IOException {
throw new IOException(SECRET_MESSAGE);
}
};
OutErrConsumers outErr = Consumers.createStreamingConsumers(out, out);
ByteArrayInputStream outInput = new ByteArrayInputStream(new byte[]{'a'});
ByteArrayInputStream errInput = new ByteArrayInputStream(new byte[0]);
outErr.registerInputs(outInput, errInput, false);
try {
outErr.waitForCompletion();
fail();
} catch (IOException e) {
assertThat(e).hasMessage(SECRET_MESSAGE);
}
}
/**
* Tests that if an OutOfMemeoryError occurs in an output stream, it
* will be recorded and thrown when we call waitForCompletion.
*/
@Test
public void testAsynchronousOutOfMemoryErrorInConsumerOutputStream() {
final OutOfMemoryError error = new OutOfMemoryError(SECRET_MESSAGE);
OutputStream out = new OutputStream() {
@Override
public void write(int b) throws IOException {
throw error;
}
};
OutErrConsumers outErr = Consumers.createStreamingConsumers(out, out);
ByteArrayInputStream outInput = new ByteArrayInputStream(new byte[]{'a'});
ByteArrayInputStream errInput = new ByteArrayInputStream(new byte[0]);
outErr.registerInputs(outInput, errInput, false);
try {
outErr.waitForCompletion();
fail();
} catch (IOException e) {
fail();
} catch (OutOfMemoryError e) {
assertSame("OutOfMemoryError is not masked", error, e);
}
}
/**
* Tests that if an Error occurs in an output stream, the error
* will be recorded and thrown when we call waitForCompletion.
*/
@Test
public void testAsynchronousErrorInConsumerOutputStream() {
OutputStream out = new OutputStream() {
@Override
public void write(int b) throws IOException {
throw new OutOfMemoryError(SECRET_MESSAGE);
}
};
OutErrConsumers outErr = Consumers.createStreamingConsumers(out, out);
ByteArrayInputStream outInput = new ByteArrayInputStream(new byte[]{'a'});
ByteArrayInputStream errInput = new ByteArrayInputStream(new byte[0]);
outErr.registerInputs(outInput, errInput, false);
try {
outErr.waitForCompletion();
fail();
} catch (IOException e) {
fail();
} catch (Error e) {
assertThat(e).hasMessage(SECRET_MESSAGE);
}
}
/**
* Tests that if an RuntimeException occurs in an output stream, the exception
* will be recorded and thrown when we call waitForCompletion.
*/
@Test
public void testAsynchronousRuntimeExceptionInConsumerOutputStream()
throws Exception {
OutputStream out = new OutputStream() {
@Override
public void write(int b) {
throw new RuntimeException(SECRET_MESSAGE);
}
};
OutErrConsumers outErr = Consumers.createStreamingConsumers(out, out);
ByteArrayInputStream outInput = new ByteArrayInputStream(new byte[]{'a'});
ByteArrayInputStream errInput = new ByteArrayInputStream(new byte[0]);
outErr.registerInputs(outInput, errInput, false);
try {
outErr.waitForCompletion();
fail();
} catch (RuntimeException e) {
assertThat(e).hasMessage(SECRET_MESSAGE);
}
}
/**
* Basically tests that Consumers#silentClose(InputStream) works properly.
*/
@Test
public void testSilentlyDropIOExceptionWhenClosingInputStream() {
InputStream in = new ByteArrayInputStream(new byte[]{'a'}){
@Override
public void close() throws IOException {
throw new IOException("Please ignore me!");
}
};
OutErrConsumers outErr = Consumers.createDiscardingConsumers();
outErr.registerInputs(in, in, false);
try {
outErr.waitForCompletion();
// yeah!
} catch (IOException e) {
fail(); // this should not throw an exception, since we're silently
// closing the output!
}
}
}
|
