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
|
//
// GTMSignalHandlerTest.m
//
// Copyright 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.
//
#import "GTMSenTestCase.h"
#import "GTMSignalHandler.h"
#import "GTMUnitTestDevLog.h"
@interface GTMSignalHandlerTest : GTMTestCase
@end
@interface SignalCounter : NSObject {
@public
int signalCount_;
int lastSeenSignal_;
}
- (int)count;
- (int)lastSeen;
- (void)countSignal:(int)signo;
+ (id)signalCounter;
@end // SignalCounter
@implementation SignalCounter
+ (id)signalCounter {
return [[[[self class] alloc] init] autorelease];
}
- (int)count {
return signalCount_;
}
- (int)lastSeen {
return lastSeenSignal_;
}
// Count the number of times this signal handler has fired.
- (void)countSignal:(int)signo {
signalCount_++;
lastSeenSignal_ = signo;
}
@end
@implementation GTMSignalHandlerTest
// Spin the run loop so that the kqueue event notifications will get delivered.
- (void)giveSomeLove {
NSDate *endTime = [NSDate dateWithTimeIntervalSinceNow:0.5];
[[NSRunLoop currentRunLoop] runUntilDate:endTime];
}
- (void)testNillage {
GTMSignalHandler *handler;
// Just an init should return nil.
[GTMUnitTestDevLog expectString:@"Don't call init, use "
@"initWithSignal:target:action:"];
handler = [[[GTMSignalHandler alloc] init] autorelease];
STAssertNil(handler, nil);
// Zero signal should return nil as well.
handler = [[[GTMSignalHandler alloc]
initWithSignal:0
target:self
action:@selector(nomnomnom:)] autorelease];
STAssertNil(handler, nil);
}
- (void)testSingleHandler {
SignalCounter *counter = [SignalCounter signalCounter];
STAssertNotNil(counter, nil);
GTMSignalHandler *handler = [[GTMSignalHandler alloc]
initWithSignal:SIGWINCH
target:counter
action:@selector(countSignal:)];
STAssertNotNil(handler, nil);
raise(SIGWINCH);
[self giveSomeLove];
STAssertEquals([counter count], 1, nil);
STAssertEquals([counter lastSeen], SIGWINCH, nil);
raise(SIGWINCH);
[self giveSomeLove];
STAssertEquals([counter count], 2, nil);
STAssertEquals([counter lastSeen], SIGWINCH, nil);
// create a second one to make sure we're seding data where we want
SignalCounter *counter2 = [SignalCounter signalCounter];
STAssertNotNil(counter2, nil);
[[[GTMSignalHandler alloc] initWithSignal:SIGUSR1
target:counter2
action:@selector(countSignal:)] autorelease];
raise(SIGUSR1);
[self giveSomeLove];
STAssertEquals([counter count], 2, nil);
STAssertEquals([counter lastSeen], SIGWINCH, nil);
STAssertEquals([counter2 count], 1, nil);
STAssertEquals([counter2 lastSeen], SIGUSR1, nil);
[handler release];
// The signal is still ignored (so we shouldn't die), but the
// the handler method should not get called.
raise(SIGWINCH);
STAssertEquals([counter count], 2, nil);
STAssertEquals([counter lastSeen], SIGWINCH, nil);
STAssertEquals([counter2 count], 1, nil);
STAssertEquals([counter2 lastSeen], SIGUSR1, nil);
}
- (void)testIgnore {
SignalCounter *counter = [SignalCounter signalCounter];
STAssertNotNil(counter, nil);
[[[GTMSignalHandler alloc] initWithSignal:SIGUSR1
target:counter
action:NULL] autorelease];
raise(SIGUSR1);
[self giveSomeLove];
STAssertEquals([counter count], 0, nil);
}
@end
|
