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|
require 'metaclass'
module Mocha
class ClassMethod
PrependedModule = Class.new(Module)
attr_reader :stubbee, :method
def initialize(stubbee, method)
@stubbee = stubbee
@original_method, @original_visibility = nil, nil
@method = RUBY_VERSION < '1.9' ? method.to_s : method.to_sym
end
def stub
hide_original_method
define_new_method
end
def unstub
remove_new_method
restore_original_method
mock.unstub(method.to_sym)
unless mock.any_expectations?
reset_mocha
end
end
def mock
stubbee.mocha
end
def reset_mocha
stubbee.reset_mocha
end
def hide_original_method
if method_exists?(method)
begin
@original_method = stubbee._method(method)
@original_visibility = :public
if stubbee.__metaclass__.protected_instance_methods.include?(method)
@original_visibility = :protected
elsif stubbee.__metaclass__.private_instance_methods.include?(method)
@original_visibility = :private
end
if @original_method && @original_method.owner == stubbee.__metaclass__
stubbee.__metaclass__.send(:remove_method, method)
end
include_prepended_module if RUBY_VERSION >= '2.0'
rescue NameError
# deal with nasties like ActiveRecord::Associations::AssociationProxy
end
end
end
def define_new_method
definition_target.class_eval(<<-CODE, __FILE__, __LINE__ + 1)
def #{method}(*args, &block)
mocha.method_missing(:#{method}, *args, &block)
end
CODE
if @original_visibility
Module.instance_method(@original_visibility).bind(definition_target).call(method)
end
end
def remove_new_method
definition_target.send(:remove_method, method)
end
def restore_original_method
if @original_method && @original_method.owner == stubbee.__metaclass__
if RUBY_VERSION < '1.9'
original_method = @original_method
stubbee.__metaclass__.send(:define_method, method) do |*args, &block|
original_method.call(*args, &block)
end
else
stubbee.__metaclass__.send(:define_method, method, @original_method)
end
end
if @original_visibility
Module.instance_method(@original_visibility).bind(stubbee.__metaclass__).call(method)
end
end
def matches?(other)
return false unless (other.class == self.class)
(stubbee.object_id == other.stubbee.object_id) and (method == other.method)
end
alias_method :==, :eql?
def to_s
"#{stubbee}.#{method}"
end
def method_exists?(method)
symbol = method.to_sym
__metaclass__ = stubbee.__metaclass__
__metaclass__.public_method_defined?(symbol) || __metaclass__.protected_method_defined?(symbol) || __metaclass__.private_method_defined?(symbol)
end
private
def include_prepended_module
possible_prepended_modules = stubbee.__metaclass__.ancestors.take_while do |mod|
!(Class === mod)
end
if possible_prepended_modules.any?
@definition_target = PrependedModule.new
stubbee.__metaclass__.__send__ :prepend, @definition_target
end
end
def definition_target
@definition_target ||= stubbee.__metaclass__
end
end
end
|
