gistfile1.md

Expectations: Count changes

• [[theBlock(^{ ... }) should] change:^{ return (NSInteger)count; }]
• [[theBlock(^{ ... }) should] change:^{ return (NSInteger)count; } by:+1]
• [[theBlock(^{ ... }) should] change:^{ return (NSInteger)count; } by:-1]

Example:

	[[theBlock(^{
	    [array addObject:@"foo"];
	}) should] change:^{ return (NSInteger)[array count]; } by:+1];
  
	[[theBlock(^{
	    [array addObject:@"bar"];
	    [array removeObject:@"foo"];
	}) shouldNot] change:^{ return (NSInteger)[array count]; }];

	[[theBlock(^{
	    [array removeObject:@"bar"];
	}) should] change:^{ return (NSInteger)[array count]; } by:-1];