Mocha + Cucumber to mock the Net response

问题

The following is the app/models/websites.rb

class Masterpiece < ActiveRecord::Base
    validates_presence_of :title, :link
    validates_uri_existence_of :link, :allow_redirect => false
end

The second validation is from the plugin Validates Existence of URI plugin

The following is the features/support/mocha.rb file

require 'mocha'
World(Mocha::API)

Before do
  mocha_setup
  @http_mock = mock('Net::HTTPResponse')
  @http_mock.stubs(:code => '200', :message => "OK", :content_type => "text/html", :body => '<title>Test</title><body>Body of the page</body>')
  Net::HTTP.expects(:get_response).returns(@http_mock)
  #Website.expects(:validates_uri_existence_of).returns(true)
end

After do
  begin
    mocha_verify
  ensure
    mocha_teardown
  end
end

But when I try to run a cucumber feature, it will try to create the record and before saving the above plugin will try to check over the Net to get the response. Its fine.
But when I want to get it Mocked on test environment, I'm trying to use mocha.

How shall I write the code to mock the Net response or the class method validates_uri_existence_of to run the test smoothly??

回答1:

The mock needs to be of the right class. Try:

Net::HTTP.expects(:get_response).returns(Net::HTTPSuccess.allocate)

(Class#allocate instantiates a class without calling initialize)

回答2:

I'd recommend using Fakeweb for this, as it is perfect for it.

来源：https://stackoverflow.com/questions/1510719/mocha-cucumber-to-mock-the-net-response

标签

ruby-on-rails

unit-testing

cucumber

mocha