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More about adding a collaboratorstubbing with matchers
As a test author
I want to be able to stub an invocation based on matchers' evaluations of the arguments
so that I don't need to redundantly stub things I don't care about
- Scenarios
-
- stubbing
-
- Given
- a new Dog test double
- When
- I stub method to return gives
- Then
- invoking invocation returns returns
Scenarios: the anything matcher with a one-argument method method gives invocation returns introduce_to(anything) 'Why Hello!' introduce_to(Cat.new) 'Why Hello!' introduce_to(anything) 'Why Hello!' introduce_to(Dog.new) 'Why Hello!' introduce_to(anything) 'Why Hello!' introduce_to(nil) 'Why Hello!' Scenarios: the anything matcher with a two-argument method method gives invocation returns walk_to(anything,5) 'Park' walk_to(5,5) 'Park' walk_to(anything,5) 'Park' walk_to('pants',5) 'Park' walk_to(anything,5) 'Park' walk_to(nil,5) 'Park' walk_to(anything,5) 'Park' walk_to(3,5.1) nil walk_to(3.123,anything) 'Park' walk_to(3.123,nil) 'Park' walk_to(anything,anything) 'Park' walk_to(3,5.1) 'Park' Scenarios: the anything matcher with a variable-argument method (argument size must match; but I don't know if I like some of these…) method gives invocation returns eat(anything,:fish,anything) :yum eat(:cat,:fish,:mouse) :yum eat(anything,:fish,anything) :yum eat(:cat,:pants,:mouse) nil eat(anything) :yum eat(:cat,:pants) nil eat(:cat,anything) :yum eat(:cat) nil eat(:cat,anything) :yum eat(:cat,nil) :yum Scenarios: the is_a matcher method gives invocation returns introduce_to(is_a(Animal)) :howdy introduce_to(Animal.new) :howdy introduce_to(is_a(Animal)) :howdy introduce_to(Cat.new) :howdy introduce_to(is_a(Animal)) :howdy introduce_to(Object.new) nil introduce_to(is_a(Animal)) :howdy introduce_to(nil) nil Scenarios: the any matcher (like is_a but also matches nil) method gives invocation returns introduce_to(any(Animal)) :howdy introduce_to(Animal.new) :howdy introduce_to(any(Animal)) :howdy introduce_to(Cat.new) :howdy introduce_to(any(Animal)) :howdy introduce_to(Object.new) nil introduce_to(any(Animal)) :howdy introduce_to(nil) :howdy Scenarios: the numeric matcher method gives invocation returns walk_to(numeric,numeric) :hydrant walk_to(1.498,8) :hydrant walk_to(numeric,numeric) :hydrant walk_to(1.498,'string') nil walk_to(numeric,numeric) :hydrant walk_to(1.498,nil) nil Scenarios: the boolean matcher method gives invocation returns holler_at(boolean) :ruff holler_at(true) :ruff holler_at(boolean) :ruff holler_at(false) :ruff holler_at(boolean) :ruff holler_at('woof') nil holler_at(boolean) :ruff holler_at(nil) nil
Last published over 7 years ago by searls.