如何存根或模拟 Rails 中的 request.subdomains 方法？

Question

I am trying to write some functional tests in my rails app, and in the application_controller.rb I have this:

before_filter :current_account
def current_account
  @current_account ||= Account.find_by_subdomain!(request.subdomians.first)
end

When running tests, request.subdomains doesn't contain the valid subdomains I'm looking for and makes it impossible to run any functional tests.

Is it possible to stub the current_account method or mock the request.subdomains object?

Answer 1

In your functional test you should be able to do (using mocha):

@request.expects(:subdomains).returns(['www'])

Answer 2

To me (and with Rails 2.3.4), the correct statement is

@controller.request.expects(:subdomains).returns(['www'])

since I cannot access to @request directly.

Answer 3

@controller.instance_variable_set(:@request, OpenStruct.new({:subdomains => 'www'}))

you can access anything in ruby:)