module SimpleStub

Constants

VERSION

Public Class Methods

for_instance_method(klass, method_name, &impl) click to toggle source

Stubs instance method. This affect to any instance of the target class.

class Dog
  def hello
    'Hello!'
  end
end

dog1 = Dog.new
stub_dog_hello = SimpleStub.for_singleton_method(Dog, :hello) { 'Bow' }
stub_dog_hello.apply!
dog1.hello # => 'Bow'
Dog.new.hello # => 'Bow'
stub_dog_hello.reset!
dog1.hello # => 'Hello!'
Dog.new.hello # => 'Hello!'

@param klass [Class] @param method_name [Symbol]

# File lib/simple_stub.rb, line 29
def for_instance_method(klass, method_name, &impl)
  ForInstanceMethod.new(klass, method_name, &impl)
end

for_singleton_method(receiver, method_name, &impl) click to toggle source

Create a definition for stubbing singleton method. This can be used to stub class method like:

fixed_time = Time.now
stub_time_now = SimpleStub.for_singleton_method(Time, :now) { fixed_time }
stub_time_now.apply!
# Time.now returns fixed_time here.
stub_time_now.reset!

And also can be used for stubbing method of an object instance.

class Dog
  def hello
    'Hello!'
  end
end

dog1 = Dog.new
stub_dog1 = SimpleStub.for_singleton_method(dog1, :hello) { 'Bow' }
stub_dog1.apply!
dog1.hello # => 'Bow'
Dog.new.hello # => 'Hello!'

@param receiver [Class|Object] @param method_name [Symbol]

# File lib/simple_stub.rb, line 58
def for_singleton_method(receiver, method_name, &impl)
  ForInstanceMethod.new(receiver.singleton_class, method_name, &impl)
end

Private Instance Methods