gistfile1.m

@implementation MyClass : CPObject
{
}

- (CPNumber)reverse
{
  return 5;
}

@end

[Test for: MyClass
      beforeEach: function() {
        this.instance = [[MyClass alloc] init]
      }
      checking: function() {
        [MyClass should: "return 5 for reversing"
                 by: function() {
                   [[this.instance reverse] shouldEqual: 5];
                 }];
        [MyClass should: "return 4 for reversing"
                 by: function() {
                   [[this.instance reverse] shouldEqual: 4]
                 }];
        [MyClass should: "fail with an exception baby"
                 by: function() {
                   [[this.instance reverse] shouldNotEqual: "nothing"]
                 }];
      }]