blob: 9dd4ad34df154fbc6205032ac6835c51d2f66cab (
plain)
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
|
/*
* Copyright (C) 2008 Google Inc.
*
* 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 junit.framework.TestCase;
import java.util.logging.Level;
import java.util.logging.LogRecord;
import java.util.logging.Logger;
/**
* Unit test for {@link TestLogHandler}.
*
* @author kevinb
*/
public class TestLogHandlerTest extends TestCase {
private TestLogHandler handler;
private TearDownStack stack = new TearDownStack();
@Override protected void setUp() throws Exception {
super.setUp();
handler = new TestLogHandler();
// You could also apply it higher up the Logger hierarchy than this
ExampleClassUnderTest.logger.addHandler(handler);
ExampleClassUnderTest.logger.setUseParentHandlers(false); // optional
stack.addTearDown(new TearDown() {
@Override
public void tearDown() throws Exception {
ExampleClassUnderTest.logger.setUseParentHandlers(true);
ExampleClassUnderTest.logger.removeHandler(handler);
}
});
}
public void test() throws Exception {
assertTrue(handler.getStoredLogRecords().isEmpty());
ExampleClassUnderTest.foo();
LogRecord record = handler.getStoredLogRecords().iterator().next();
assertEquals(Level.INFO, record.getLevel());
assertEquals("message", record.getMessage());
assertSame(EXCEPTION, record.getThrown());
}
public void testConcurrentModification() throws Exception {
// Tests for the absence of a bug where logging while iterating over the
// stored log records causes a ConcurrentModificationException
assertTrue(handler.getStoredLogRecords().isEmpty());
ExampleClassUnderTest.foo();
ExampleClassUnderTest.foo();
for (LogRecord record : handler.getStoredLogRecords()) {
ExampleClassUnderTest.foo();
}
}
@Override public final void runBare() throws Throwable {
try {
setUp();
runTest();
} finally {
tearDown();
}
}
@Override protected void tearDown() {
stack.runTearDown();
}
static final Exception EXCEPTION = new Exception();
static class ExampleClassUnderTest {
static final Logger logger
= Logger.getLogger(ExampleClassUnderTest.class.getName());
static void foo() {
logger.log(Level.INFO, "message", EXCEPTION);
}
}
}
|
