1//
 2//  KWBeNilMatcher.m
 3//  iOSFalconCore
 4//
 5//  Created by Luke Redpath on 14/01/2011.
 6//  Copyright 2011 LJR Software Limited. All rights reserved.
 7//
 8
 9#import "KWBeNilMatcher.h"
10#import "KWFormatter.h"
11
12@implementation KWBeNilMatcher
13
14#pragma mark -
15#pragma mark Getting Matcher Strings
16
17+ (NSArray *)matcherStrings {
18  return @[@"beNil"];
19}
20
21#pragma mark -
22#pragma mark Matching
23
24- (BOOL)evaluate {
25  return (BOOL)(self.subject == nil);
26}
27
28#pragma mark -
29#pragma mark Getting Failure Messages
30
31- (NSString *)failureMessageForShould {
32  return [NSString stringWithFormat:@"expected subject to be nil, got %@",
33          [KWFormatter formatObject:self.subject]];
34}
35
36- (NSString *)failureMessageForShouldNot {
37  return [NSString stringWithFormat:@"expected %@ not to be nil",
38          [KWFormatter formatObject:self.subject]];
39}
40
41- (void)beNil {}
42
43- (NSString *)description
44{
45  return @"be nil";
46}
47
48@end