ruby-on-rails - Rspec - stub 模块方法

Question

如何 stub 模块中的方法:

module SomeModule
    def method_one
        # do stuff
        something = method_two(some_arg)
        # so more stuff
    end

    def method_two(arg)
        # do stuff
    end
end

我可以测试 method_two隔离很好。

我想测试 method_one也可以通过 stub method_two 的返回值来隔离。 :

shared_examples_for SomeModule do
    it 'does something exciting' do
        # neither of the below work
        # SomeModule.should_receive(:method_two).and_return('MANUAL')
        # SomeModule.stub(:method_two).and_return('MANUAL')

        # expect(described_class.new.method_one).to eq(some_value)
    end
end

describe SomeController do
    include_examples SomeModule
end

SomeModule 中的规范包含在 SomeController 中的失败是因为 method_two引发异常(它尝试进行尚未播种的数据库查找)。

我如何 stub method_two在 method_one 内调用时?

Answer 1

allow_any_instance_of(M).to receive(:foo).and_return(:bar)

Is there a way to stub a method of an included module with Rspec?

这种方法对我有用