创建新的存根方法,检查Rspec中是否存在该方法

时间:2013-01-21 14:17:43

标签: rspec rspec-rails stub stubbing

我想创建一些特殊的存根方法stub_checkstub_chain_check,以确保方法存在。

例如:

#spec/controllers/payments_controller_spec.rb`

describe PaymentsController do
  it "makes a payment" do
    # Ensure method exists, Payment.new.respond_to?(:pay)
    # the API of Payment can change and tests will pass
    raise "Stubbing wrong method Payment#pay method doesn't exists" unless Payment.new.respond_to?(:pay)
    Payment.any_instance.stub(pay: true) # We can stub method now
    # Code...
  end
end

但我想要Payment.stub_check(pay: true)

之类的东西

1 个答案:

答案 0 :(得分:0)

您可以在spec_helper.rb文件上创建帮助程序:

def stub_check(resource, method, value, message)
  raise message unless resource.new.respond_to?(method)
  resource.any_instance.stub(method => value)
end

然后用

来调用它
stub_check(Payment, :pay, true, 'Stubbing wrong method Payment#pay method doesn't exists')

编辑:如果你想让它像stub一样工作,你可能需要修改mocka或你正在使用的匹配器(我猜它是因为“any_instance”方法而被模拟)