cockscomb 

No content

͸ͯͳϒϩά 

No content

No content

CXC 

CXCKeyValueObserver 

Key Value Observation 

Key Value Observation • Key Value CodingͰΦϒδΣΫτͷঢ়ଶΛ؂ࢹ • @property͸KVCͷنଇʹै͏ͨΊ؂ࢹͰ͖Δ • Modelͷঢ়ଶΛ؂ࢹͯ͠ViewΛߋ৽ͳͲͰศར 

- (void)viewDidLoad { [super viewDidLoad]; [self.someObject addObserver:self forKeyPath:@"example" options:NSKeyValueObservingOptionNew context:NULL]; } ! - (void)dealloc { [self.someObject removeObserver:self forKeyPath:@"example"]; } ! - (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context { if (object == self.someObject) { if ([keyPath isEqualToString:@"example"]) { // do something } } } 

- (void)viewDidLoad { [super viewDidLoad]; [self.someObject addObserver:self forKeyPath:@"example" options:NSKeyValueObservingOptionNew context:NULL]; } ! - (void)dealloc { [self.someObject removeObserver:self forKeyPath:@"example"]; } ! - (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context { if (object == self.someObject) { if ([keyPath isEqualToString:@"example"]) { // do something } } } 1 

- (void)viewDidLoad { [super viewDidLoad]; [self.someObject addObserver:self forKeyPath:@"example" options:NSKeyValueObservingOptionNew context:NULL]; } ! - (void)dealloc { [self.someObject removeObserver:self forKeyPath:@"example"]; } ! - (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context { if (object == self.someObject) { if ([keyPath isEqualToString:@"example"]) { // do something } } } 1 2 

- (void)viewDidLoad { [super viewDidLoad]; [self.someObject addObserver:self forKeyPath:@"example" options:NSKeyValueObservingOptionNew context:NULL]; } ! - (void)dealloc { [self.someObject removeObserver:self forKeyPath:@"example"]; } ! - (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context { if (object == self.someObject) { if ([keyPath isEqualToString:@"example"]) { // do something } } } 1 3 2 

- (void)viewDidLoad { [super viewDidLoad]; [self.someObject addObserver:self forKeyPath:@"example" options:NSKeyValueObservingOptionNew context:NULL]; } ! - (void)dealloc { [self.someObject removeObserver:self forKeyPath:@"example"]; } ! - (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context { if (object == self.someObject) { if ([keyPath isEqualToString:@"example"]) { // do something } } } 

• observeValueForKeyPath:ofObject:change:context:
 ͱ͍͏ϝιουʹશͯهड़͠ͳ͚Ε͹ͳΒͳ͍ • removeObserver:forKeyPath:
 Λݺͼ๨Εͯ͸͍͚ͳ͍ • ͩΜͩΜෳࡶʹͳ͍ͬͯ͘ • ෳ਺ਓ։ൃʹ޲͔ͳ͍આ 

CXCKeyValueObserver 

- (void)viewDidLoad { [super viewDidLoad]; _observer = [[CXCKeyValueObserver alloc] initWithObservee:self.someObject forKeyPath:@"example" options:NSKeyValueObservingOptionNew block:^(id observee, NSString *keyPath, NSDictionary *change) { // do something }]; } 

• BlockΛ༻͍ͯએݴతʹهड़ • observer΁ͷڧࢀর͕ͳ͘ͳΔͱ͖ࣗಈతʹ
 removeObserver:forKeyPath: • ϦʔζφϒϧͳΠϯλʔϑΣʔε 

https://github.com/cockscomb/CXCKeyValueObserver 

CXCKeyValueObserver • MIT License • CocoaPodsରԠ • ୯ମςετ 

˒14 

Unit Test 

The Unit Testing of Objective-C • https://speakerdeck.com/cockscomb/the- unit-testing-of-objective-c • Kiwi • Nocilla 

Unit Testing Tools • XCTest • (BDDϥΠϒϥϦ) • ඇಉظςετϥΠϒϥϦ • ΧελϜϚονϟ • Mock/StubϥΠϒϥϦ • ωοτϫʔΫstubϥΠϒϥϦ 

XCTest 

BDD • ϥΠϒϥϦ • Kiwi • Specta • Behavior Driven Development 

ඇಉظςετ • ϥΠϒϥϦ • Kiwi • Specta • TRVSMonitor • TKRGuard • ಉظతʹॲཧ͞Εͳ͍ͱ͖ͷςετ 

ΧελϜϚονϟ • ϥΠϒϥϦ • Kiwi • OCHamcrest • Expecta • ศརͳAssert 

Mock/Stub • ϥΠϒϥϦ • Kiwi • OCMock • ςετ͍ͨ͠ΦϒδΣΫτͷؔ࿈ΦϒδΣΫτ Λٖࣅతʹ࡞Γग़ͯ͠ςετΛ؆ུԽ 

ωοτϫʔΫStub • ϥΠϒϥϦ • Nocilla • OHHTTPStubs • ωοτϫʔΫͷঢ়ଶ΍ϨεϙϯεΛٖࣅతʹ࡞ Γग़ͯ͠ωοτϫʔΫपΓͷςετΛ؆ུԽ 

• BDD • Kiwi • Specta • ඇಉظςετ • Kiwi • Specta • TRVSMonitor • TKRGuard ! • ΧελϜϚονϟ • Kiwi • OCHamcrest • Expecta • Mock/Stub • Kiwi • OCMock • ωοτϫʔΫstub • Nocilla • OHHTTPStubs 

CXCKeyValueObserver • Specta • Expecta • OCMock 

@interface CXCKeyValueObserverTestsObject : NSObject @property (nonatomic, strong) id exampleProperty; @end @implementation CXCKeyValueObserverTestsObject @end ! SpecBegin(CXCKeyValueObserver) describe(@"KeyValueObserver", ^{ ! __block CXCKeyValueObservingBlock block; __block id gotObservee; __block NSString *gotKeyPath; __block NSDictionary *gotChange; __block CXCKeyValueObserverTestsObject *observee; __block NSString *keyPath; ! beforeEach(^{ block = ^(id _observee, NSString *_keyPath, NSDictionary *_change) { gotObservee = _observee; gotKeyPath = _keyPath; gotChange = _change; }; gotObservee = nil; gotKeyPath = nil; gotChange = nil; observee = [[CXCKeyValueObserverTestsObject alloc] init]; keyPath = NSStringFromSelector(@selector(exampleProperty)); }); ! ... }); SpecEnd 

it(@"should call its block when the observing property changed", ^{ __unused CXCKeyValueObserver *observer = [[CXCKeyValueObserver alloc] initWithObservee:observee forKeyPath:keyPath options:0 block:block]; ! observee.exampleProperty = @"exampleNewValue"; ! expect(gotObservee).to.equal(observee); expect(gotKeyPath).to.beIdenticalTo(keyPath); expect(gotChange).notTo.beNil(); }); 

it(@"should call removeObserver:forKayPath:context: when deallocated", ^{ id mock = [OCMockObject niceMockForClass: [CXCKeyValueObserverTestsObject class]]; [[mock expect] removeObserver:[OCMArg any] forKeyPath:keyPath context:[OCMArg anyPointer]]; ! @autoreleasepool { CXCKeyValueObserver *observer = [[CXCKeyValueObserver alloc] initWithObservee:mock forKeyPath:keyPath options:0 block:block]; ! observer = nil; } ! [mock verify]; }); 

CXCKeyValueObserver • Specta • Expecta • OCMock 

ࡶஊίʔφʔ 

description • descriptionॻ͍͓͖͍ͯͨ • ඞཁʹԠͯ͡debugDescription • AppCodeศར 

description - (NSString *)description { NSMutableString *description = [NSMutableString stringWithFormat:@"<%@: ", NSStringFromClass([self class])]; [description appendFormat:@"self.observee=%@", self.observee]; [description appendFormat:@", self.keyPath=%@", self.keyPath]; [description appendFormat:@", self.options=%lu", (unsigned long)self.options]; [description appendFormat:@", self.block=%p", self.block]; [description appendString:@">"]; return description; } 

AppCode 

AppCode • JetBrains IDE • ௒ߴػೳ 

No content

No content

No content

AppCode • ݡ͍ΦʔτίϯϓϦʔτ • ϦϑΥʔϚοτ • ίʔυͷੜ੒ • ϦϑΝΫλϦϯά • ίʔυͷղੳ 

github.com/cockscomb/CXCKeyValueObserver 

DPDLTDPNCIBUFOBCMPHDPN