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//
// GTMNSObject+KeyValueObservingTest.m
//
// Copyright 2009 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.
//
//
// Tester.m
// MAKVONotificationCenter
//
// Created by Michael Ash on 10/15/08.
//
// This code is based on code by Michael Ash.
// See comment in header.
#import "GTMSenTestCase.h"
#import "GTMNSObject+KeyValueObserving.h"
#import "GTMDefines.h"
#import "GTMUnitTestDevLog.h"
@interface GTMNSObject_KeyValueObservingTest : GTMTestCase {
int32_t count_;
NSMutableDictionary *dict_;
__weak NSString *expectedValue_;
}
- (void)observeValueChange:(GTMKeyValueChangeNotification *)notification;
@end
@implementation GTMNSObject_KeyValueObservingTest
- (void)setUp {
dict_ = [[NSMutableDictionary alloc] initWithObjectsAndKeys:
@"foo", @"key",
nil];
}
- (void)tearDown {
[dict_ release];
}
- (void)testSingleChange {
count_ = 0;
[dict_ gtm_addObserver:self
forKeyPath:@"key"
selector:@selector(observeValueChange:)
userInfo:@"userInfo"
options:NSKeyValueObservingOptionNew];
expectedValue_ = @"bar";
[dict_ setObject:expectedValue_ forKey:@"key"];
STAssertEquals(count_, (int32_t)1, nil);
[dict_ gtm_removeObserver:self
forKeyPath:@"key"
selector:@selector(observeValueChange:)];
[dict_ setObject:@"foo" forKey:@"key"];
STAssertEquals(count_, (int32_t)1, nil);
}
- (void)testStopObservingAllKeyPaths {
count_ = 0;
[dict_ gtm_addObserver:self
forKeyPath:@"key"
selector:@selector(observeValueChange:)
userInfo:@"userInfo"
options:NSKeyValueObservingOptionNew];
expectedValue_ = @"bar";
[dict_ setObject:expectedValue_ forKey:@"key"];
STAssertEquals(count_, (int32_t)1, nil);
[self gtm_stopObservingAllKeyPaths];
[dict_ setObject:@"foo" forKey:@"key"];
STAssertEquals(count_, (int32_t)1, nil);
}
- (void)testRemoving {
[GTMUnitTestDevLogDebug expectPattern:@"-\\[GTMNSObject_KeyValueObservingTest"
@" testRemoving\\] was not observing.*"];
[dict_ gtm_removeObserver:self
forKeyPath:@"key"
selector:@selector(observeValueChange:)];
}
- (void)testAdding {
[dict_ gtm_addObserver:self
forKeyPath:@"key"
selector:@selector(observeValueChange:)
userInfo:@"userInfo"
options:NSKeyValueObservingOptionNew];
[GTMUnitTestDevLog expectPattern:@"-\\[GTMNSObject_KeyValueObservingTest"
@" testAdding\\] already observing.*"];
[dict_ gtm_addObserver:self
forKeyPath:@"key"
selector:@selector(observeValueChange:)
userInfo:@"userInfo"
options:NSKeyValueObservingOptionNew];
[dict_ gtm_removeObserver:self
forKeyPath:@"key"
selector:@selector(observeValueChange:)];
}
- (void)observeValueChange:(GTMKeyValueChangeNotification *)notification {
STAssertEqualObjects([notification userInfo], @"userInfo", nil);
STAssertEqualObjects([notification keyPath], @"key", nil);
STAssertEqualObjects([notification object], dict_, nil);
NSDictionary *change = [notification change];
NSString *value = [change objectForKey:NSKeyValueChangeNewKey];
STAssertEqualObjects(value, expectedValue_, nil);
++count_;
GTMKeyValueChangeNotification *copy = [[notification copy] autorelease];
STAssertEqualObjects(notification, copy, nil);
STAssertEquals([notification hash], [copy hash], nil);
}
@end
#if GTM_PERFORM_KVO_CHECKS
@interface GTMNSObject_KeyValueObservingChecksTest: GTMTestCase {
@private
id value_;
id _value2;
__weak NSArray *value3_;
__weak NSString *value4;
}
- (NSString *)value4;
@end
@implementation GTMNSObject_KeyValueObservingChecksTest
- (void)testAddingObserver {
[GTMUnitTestDevLogDebug expectPattern:@"warning:.*"];
[self addObserver:self forKeyPath:@"value_" options:0 context:NULL];
[GTMUnitTestDevLogDebug expectPattern:@"warning:.*"];
[self addObserver:self forKeyPath:@"_value2" options:0 context:NULL];
value3_ = [NSArray arrayWithObject:@"foo"];
NSIndexSet *set = [NSIndexSet indexSetWithIndex:0];
[GTMUnitTestDevLogDebug expectPattern:@"warning:.*"];
[value3_ addObserver:self toObjectsAtIndexes:set forKeyPath:@"_fronttest"
options:0 context:NULL];
[GTMUnitTestDevLogDebug expectPattern:@"warning:.*"];
[value3_ addObserver:self toObjectsAtIndexes:set forKeyPath:@"backtest_"
options:0 context:NULL];
#if DEBUG
// Should only throw in debug
STAssertThrows([self valueForKey:@"value_"], nil);
#else
STAssertNoThrow([self valueForKey:@"value_"], nil);
#endif
value4 = @"Hello";
STAssertEqualObjects([self valueForKey:@"value4"], @"Hello", nil);
[self removeObserver:self forKeyPath:@"value_"];
[self removeObserver:self forKeyPath:@"_value2"];
[value3_ removeObserver:self fromObjectsAtIndexes:set forKeyPath:@"_fronttest"];
[value3_ removeObserver:self fromObjectsAtIndexes:set forKeyPath:@"backtest_"];
}
- (NSString *)value4 {
return value4;
}
@end
#endif // GTM_PERFORM_KVO_CHECKS
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