RSpec故障模拟HTTP请求

Question

我如何为...编写RSpec

Net::HTTP::Proxy(PROXY_HOST, PROXY_PORT).start(url.host) do |http|
  request = Net::HTTP::Post.new(url.path)
  request.form_data = {'param1' => 'blah1', 'param2' => 'blah2'}
  response = http.request(request)
end

据我所知...

@mock_http = mock('http')
@mock_http.should_receive(:start).with(@url.host)
Net::HTTP.should_receive(:Proxy).with(PROXY_HOST, PROXY_PORT).and_return(@mock_http)
Net::HTTP::Post.should_receive(:new).with(@url.path).and_return(@mock_http)

但是当尝试...

Net::HTTP::Post.should_receive(:new).with(@url.path).and_return(@mock_http)

...收到以下回应...

<Net::HTTP::Post (class)> expected :new with ("/some/path") once, but received it 0 times

完整的解决方案将不胜感激！

Answer 1

我不确定您要测试的是什么，但是这是使用webmock存根http请求的方法：

在Gemfile：

group :test do
  gem 'webmock'
end

在spec/spec_helper.rb：

require 'webmock/rspec'
WebMock.disable_net_connect!(:allow_localhost => true)

在您的测试中：

stub_request(:post, url.host).
  with(:body => {'param1' => 'blah1', 'param2' => 'blah2'},
  to_return(:status => 200, :body => '{ insert your response body expectation here }'