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KWReceiveMatcher.m
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KWReceiveMatcher.m
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//
// Licensed under the terms in License.txt
//
// Copyright 2010 Allen Ding. All rights reserved.
//
#import "KWReceiveMatcher.h"
#import "KWFormatter.h"
#import "KWInvocationCapturer.h"
#import "KWMessagePattern.h"
#import "KWMessageTracker.h"
#import "KWObjCUtilities.h"
#import "KWStringUtilities.h"
#import "KWWorkarounds.h"
#import "NSObject+KiwiStubAdditions.h"
static NSString * const MatchVerifierKey = @"MatchVerifierKey";
static NSString * const CountTypeKey = @"CountTypeKey";
static NSString * const CountKey = @"CountKey";
static NSString * const StubValueKey = @"StubValueKey";
@interface KWReceiveMatcher()
#pragma mark - Properties
@property (nonatomic, readwrite, retain) KWMessageTracker *messageTracker;
@end
@implementation KWReceiveMatcher
#pragma mark - Initializing
- (id)initWithSubject:(id)anObject {
if ((self = [super initWithSubject:anObject])) {
self.willEvaluateMultipleTimes = NO;
}
return self;
}
- (void)dealloc {
[messageTracker release];
[super dealloc];
}
#pragma mark - Properties
@synthesize messageTracker;
@synthesize willEvaluateMultipleTimes;
#pragma mark - Getting Matcher Strings
+ (NSArray *)matcherStrings {
return @[@"receive:",
@"receive:withCount:",
@"receive:withCountAtLeast:",
@"receive:withCountAtMost:",
@"receive:andReturn:",
@"receive:andReturn:withCount:",
@"receive:andReturn:withCountAtLeast:",
@"receive:andReturn:withCountAtMost:",
@"receiveMessagePattern:countType:count:",
@"receiveMessagePattern:andReturn:countType:count:"];
}
#pragma mark - Matching
- (BOOL)shouldBeEvaluatedAtEndOfExample {
return YES;
}
- (BOOL)evaluate {
BOOL succeeded = [self.messageTracker succeeded];
if (!self.willEvaluateMultipleTimes) {
[self.messageTracker stopTracking];
}
return succeeded;
}
#pragma mark - Getting Failure Messages
- (NSString *)failureMessageForShould {
return [NSString stringWithFormat:@"expected subject to receive -%@ %@, but received it %@",
[self.messageTracker.messagePattern stringValue],
[self.messageTracker expectedCountPhrase],
[self.messageTracker receivedCountPhrase]];
}
- (NSString *)failureMessageForShouldNot {
return [NSString stringWithFormat:@"expected subject not to receive -%@, but received it %@",
[self.messageTracker.messagePattern stringValue],
[self.messageTracker receivedCountPhrase]];
}
#pragma mark - Configuring Matchers
- (void)receive:(SEL)aSelector {
KWMessagePattern *messagePattern = [KWMessagePattern messagePatternWithSelector:aSelector];
[self receiveMessagePattern:messagePattern countType:KWCountTypeExact count:1];
}
- (void)receive:(SEL)aSelector withCount:(NSUInteger)aCount {
KWMessagePattern *messagePattern = [KWMessagePattern messagePatternWithSelector:aSelector];
return [self receiveMessagePattern:messagePattern countType:KWCountTypeExact count:aCount];
}
- (void)receive:(SEL)aSelector withCountAtLeast:(NSUInteger)aCount {
KWMessagePattern *messagePattern = [KWMessagePattern messagePatternWithSelector:aSelector];
return [self receiveMessagePattern:messagePattern countType:KWCountTypeAtLeast count:aCount];
}
- (void)receive:(SEL)aSelector withCountAtMost:(NSUInteger)aCount {
KWMessagePattern *messagePattern = [KWMessagePattern messagePatternWithSelector:aSelector];
return [self receiveMessagePattern:messagePattern countType:KWCountTypeAtMost count:aCount];
}
- (void)receive:(SEL)aSelector andReturn:(id)aValue {
KWMessagePattern *messagePattern = [KWMessagePattern messagePatternWithSelector:aSelector];
[self receiveMessagePattern:messagePattern andReturn:aValue countType:KWCountTypeExact count:1];
}
- (void)receive:(SEL)aSelector andReturn:(id)aValue withCount:(NSUInteger)aCount {
KWMessagePattern *messagePattern = [KWMessagePattern messagePatternWithSelector:aSelector];
[self receiveMessagePattern:messagePattern andReturn:aValue countType:KWCountTypeExact count:aCount];
}
- (void)receive:(SEL)aSelector andReturn:(id)aValue withCountAtLeast:(NSUInteger)aCount {
KWMessagePattern *messagePattern = [KWMessagePattern messagePatternWithSelector:aSelector];
[self receiveMessagePattern:messagePattern andReturn:aValue countType:KWCountTypeAtLeast count:aCount];
}
- (void)receive:(SEL)aSelector andReturn:(id)aValue withCountAtMost:(NSUInteger)aCount {
KWMessagePattern *messagePattern = [KWMessagePattern messagePatternWithSelector:aSelector];
[self receiveMessagePattern:messagePattern andReturn:aValue countType:KWCountTypeAtMost count:aCount];
}
- (void)receiveMessagePattern:(KWMessagePattern *)aMessagePattern countType:(KWCountType)aCountType count:(NSUInteger)aCount {
#if KW_TARGET_HAS_INVOCATION_EXCEPTION_BUG
@try {
#endif // #if KW_TARGET_HAS_INVOCATION_EXCEPTION_BUG
[self.subject stubMessagePattern:aMessagePattern andReturn:nil overrideExisting:NO];
self.messageTracker = [KWMessageTracker messageTrackerWithSubject:self.subject messagePattern:aMessagePattern countType:aCountType count:aCount];
#if KW_TARGET_HAS_INVOCATION_EXCEPTION_BUG
} @catch(NSException *exception) {
KWSetExceptionFromAcrossInvocationBoundary(exception);
}
#endif // #if KW_TARGET_HAS_INVOCATION_EXCEPTION_BUG
}
- (void)receiveMessagePattern:(KWMessagePattern *)aMessagePattern andReturn:(id)aValue countType:(KWCountType)aCountType count:(NSUInteger)aCount {
#if KW_TARGET_HAS_INVOCATION_EXCEPTION_BUG
@try {
#endif // #if KW_TARGET_HAS_INVOCATION_EXCEPTION_BUG
[self.subject stubMessagePattern:aMessagePattern andReturn:aValue];
self.messageTracker = [KWMessageTracker messageTrackerWithSubject:self.subject messagePattern:aMessagePattern countType:aCountType count:aCount];
#if KW_TARGET_HAS_INVOCATION_EXCEPTION_BUG
} @catch(NSException *exception) {
KWSetExceptionFromAcrossInvocationBoundary(exception);
}
#endif // #if KW_TARGET_HAS_INVOCATION_EXCEPTION_BUG
}
#pragma mark - Capturing Invocations
+ (NSMethodSignature *)invocationCapturer:(KWInvocationCapturer *)anInvocationCapturer methodSignatureForSelector:(SEL)aSelector {
KWMatchVerifier *verifier = (anInvocationCapturer.userInfo)[MatchVerifierKey];
if ([verifier.subject respondsToSelector:aSelector])
return [verifier.subject methodSignatureForSelector:aSelector];
NSString *encoding = KWEncodingForVoidMethod();
return [NSMethodSignature signatureWithObjCTypes:[encoding UTF8String]];
}
+ (void)invocationCapturer:(KWInvocationCapturer *)anInvocationCapturer didCaptureInvocation:(NSInvocation *)anInvocation {
NSDictionary *userInfo = anInvocationCapturer.userInfo;
id verifier = userInfo[MatchVerifierKey];
KWCountType countType = [userInfo[CountTypeKey] unsignedIntegerValue];
NSUInteger count = [userInfo[CountKey] unsignedIntegerValue];
NSValue *stubValue = userInfo[StubValueKey];
KWMessagePattern *messagePattern = [KWMessagePattern messagePatternFromInvocation:anInvocation];
if (stubValue != nil)
[verifier receiveMessagePattern:messagePattern andReturn:[stubValue nonretainedObjectValue] countType:countType count:count];
else
[verifier receiveMessagePattern:messagePattern countType:countType count:count];
}
@end
@implementation KWMatchVerifier(KWReceiveMatcherAdditions)
#pragma mark - Verifying
- (void)receive:(SEL)aSelector withArguments:(id)firstArgument, ... {
va_list argumentList;
va_start(argumentList, firstArgument);
KWMessagePattern *messagePattern = [KWMessagePattern messagePatternWithSelector:aSelector firstArgumentFilter:firstArgument argumentList:argumentList];
[(id)self receiveMessagePattern:messagePattern countType:KWCountTypeExact count:1];
}
- (void)receive:(SEL)aSelector withCount:(NSUInteger)aCount arguments:(id)firstArgument, ... {
va_list argumentList;
va_start(argumentList, firstArgument);
KWMessagePattern *messagePattern = [KWMessagePattern messagePatternWithSelector:aSelector firstArgumentFilter:firstArgument argumentList:argumentList];
[(id)self receiveMessagePattern:messagePattern countType:KWCountTypeExact count:aCount];
}
- (void)receive:(SEL)aSelector withCountAtLeast:(NSUInteger)aCount arguments:(id)firstArgument, ... {
va_list argumentList;
va_start(argumentList, firstArgument);
KWMessagePattern *messagePattern = [KWMessagePattern messagePatternWithSelector:aSelector firstArgumentFilter:firstArgument argumentList:argumentList];
[(id)self receiveMessagePattern:messagePattern countType:KWCountTypeAtLeast count:aCount];
}
- (void)receive:(SEL)aSelector withCountAtMost:(NSUInteger)aCount arguments:(id)firstArgument, ... {
va_list argumentList;
va_start(argumentList, firstArgument);
KWMessagePattern *messagePattern = [KWMessagePattern messagePatternWithSelector:aSelector firstArgumentFilter:firstArgument argumentList:argumentList];
[(id)self receiveMessagePattern:messagePattern countType:KWCountTypeAtMost count:aCount];
}
- (void)receive:(SEL)aSelector andReturn:(id)aValue withArguments:(id)firstArgument, ... {
va_list argumentList;
va_start(argumentList, firstArgument);
KWMessagePattern *messagePattern = [KWMessagePattern messagePatternWithSelector:aSelector firstArgumentFilter:firstArgument argumentList:argumentList];
[(id)self receiveMessagePattern:messagePattern andReturn:aValue countType:KWCountTypeExact count:1];
}
- (void)receive:(SEL)aSelector andReturn:(id)aValue withCount:(NSUInteger)aCount arguments:(id)firstArgument, ... {
va_list argumentList;
va_start(argumentList, firstArgument);
KWMessagePattern *messagePattern = [KWMessagePattern messagePatternWithSelector:aSelector firstArgumentFilter:firstArgument argumentList:argumentList];
[(id)self receiveMessagePattern:messagePattern andReturn:aValue countType:KWCountTypeExact count:aCount];
}
- (void)receive:(SEL)aSelector andReturn:(id)aValue withCountAtLeast:(NSUInteger)aCount arguments:(id)firstArgument, ... {
va_list argumentList;
va_start(argumentList, firstArgument);
KWMessagePattern *messagePattern = [KWMessagePattern messagePatternWithSelector:aSelector firstArgumentFilter:firstArgument argumentList:argumentList];
[(id)self receiveMessagePattern:messagePattern andReturn:aValue countType:KWCountTypeAtLeast count:aCount];
}
- (void)receive:(SEL)aSelector andReturn:(id)aValue withCountAtMost:(NSUInteger)aCount arguments:(id)firstArgument, ... {
va_list argumentList;
va_start(argumentList, firstArgument);
KWMessagePattern *messagePattern = [KWMessagePattern messagePatternWithSelector:aSelector firstArgumentFilter:firstArgument argumentList:argumentList];
[(id)self receiveMessagePattern:messagePattern andReturn:aValue countType:KWCountTypeAtMost count:aCount];
}
#pragma mark Invocation Capturing Methods
- (NSDictionary *)userInfoForReceiveMatcherWithCountType:(KWCountType)aCountType count:(NSUInteger)aCount {
return @{MatchVerifierKey: self,
CountTypeKey: @(aCountType),
CountKey: @(aCount)};
}
- (NSDictionary *)userInfoForReceiveMatcherWithCountType:(KWCountType)aCountType count:(NSUInteger)aCount value:(id)aValue {
return @{MatchVerifierKey: self,
CountTypeKey: @(aCountType),
CountKey: @(aCount),
StubValueKey: [NSValue valueWithNonretainedObject:aValue]};
}
- (id)receive {
NSDictionary *userInfo = [self userInfoForReceiveMatcherWithCountType:KWCountTypeExact count:1];
return [KWInvocationCapturer invocationCapturerWithDelegate:[KWReceiveMatcher class] userInfo:userInfo];
}
- (id)receiveWithCount:(NSUInteger)aCount {
NSDictionary *userInfo = [self userInfoForReceiveMatcherWithCountType:KWCountTypeExact count:aCount];
return [KWInvocationCapturer invocationCapturerWithDelegate:[KWReceiveMatcher class] userInfo:userInfo];
}
- (id)receiveWithCountAtLeast:(NSUInteger)aCount {
NSDictionary *userInfo = [self userInfoForReceiveMatcherWithCountType:KWCountTypeAtLeast count:aCount];
return [KWInvocationCapturer invocationCapturerWithDelegate:[KWReceiveMatcher class] userInfo:userInfo];
}
- (id)receiveWithCountAtMost:(NSUInteger)aCount {
NSDictionary *userInfo = [self userInfoForReceiveMatcherWithCountType:KWCountTypeAtMost count:aCount];
return [KWInvocationCapturer invocationCapturerWithDelegate:[KWReceiveMatcher class] userInfo:userInfo];
}
- (id)receiveAndReturn:(id)aValue {
NSDictionary *userInfo = [self userInfoForReceiveMatcherWithCountType:KWCountTypeExact count:1 value:aValue];
return [KWInvocationCapturer invocationCapturerWithDelegate:[KWReceiveMatcher class] userInfo:userInfo];
}
- (id)receiveAndReturn:(id)aValue withCount:(NSUInteger)aCount {
NSDictionary *userInfo = [self userInfoForReceiveMatcherWithCountType:KWCountTypeExact count:aCount value:aValue];
return [KWInvocationCapturer invocationCapturerWithDelegate:[KWReceiveMatcher class] userInfo:userInfo];
}
- (id)receiveAndReturn:(id)aValue withCountAtLeast:(NSUInteger)aCount {
NSDictionary *userInfo = [self userInfoForReceiveMatcherWithCountType:KWCountTypeAtLeast count:aCount value:aValue];
return [KWInvocationCapturer invocationCapturerWithDelegate:[KWReceiveMatcher class] userInfo:userInfo];
}
- (id)receiveAndReturn:(id)aValue withCountAtMost:(NSUInteger)aCount {
NSDictionary *userInfo = [self userInfoForReceiveMatcherWithCountType:KWCountTypeAtMost count:aCount value:aValue];
return [KWInvocationCapturer invocationCapturerWithDelegate:[KWReceiveMatcher class] userInfo:userInfo];
}
@end