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// Licensed under the terms in License.txt
// Copyright 2010 Allen Ding. All rights reserved.
#import "KWBeZeroMatcher.h"
#import "KWFormatter.h"
#import "KWValue.h"
@implementation KWBeZeroMatcher
#pragma mark -
#pragma mark Getting Matcher Strings
+ (NSArray *)matcherStrings {
return [NSArray arrayWithObject:@"beZero"];
#pragma mark -
#pragma mark Matching
- (BOOL)evaluate {
if (![self.subject respondsToSelector:@selector(boolValue)])
[NSException raise:@"KWMatcherException" format:@"subject does not respond to -numberValue"];
return [[self.subject numberValue] isEqualToNumber:[NSNumber numberWithInt:0]];
#pragma mark -
#pragma mark Getting Failure Messages
- (NSString *)failureMessageForShould {
return [NSString stringWithFormat:@"expected subject to be zero, got %@",
[KWFormatter formatObject:self.subject]];
- (NSString *)failureMessageForShouldNot {
return [NSString stringWithFormat:@"expected subject not to be zero"];
#pragma mark -
#pragma mark Configuring Matchers
- (void)beZero {
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