A small suite of assertions that test responses from Rails applications.

Methods
A
Instance Public methods
assert_redirected_to(options = {}, message=nil)

Assert that the redirection options passed in match those of the redirect called in the latest action. This match can be partial, such that assert_redirected_to(:controller => "weblog") will also match the redirection of redirect_to(:controller => "weblog", :action => "show") and so on.

Examples

  # assert that the redirection was to the "index" action on the WeblogController
  assert_redirected_to :controller => "weblog", :action => "index"

  # assert that the redirection was to the named route login_url
  assert_redirected_to login_url

  # assert that the redirection was to the url for @customer
  assert_redirected_to @customer

Source: show | on GitHub 

    # File actionpack/lib/action_dispatch/testing/assertions/response.rb, line 57
57:       def assert_redirected_to(options = {}, message=nil)
58:         assert_response(:redirect, message)
59:         return true if options == @response.location
60: 
61:         redirect_is       = normalize_argument_to_redirection(@response.location)
62:         redirect_expected = normalize_argument_to_redirection(options)
63: 
64:         if redirect_is != redirect_expected
65:           flunk "Expected response to be a redirect to <#{redirect_expected}> but was a redirect to <#{redirect_is}>"
66:         end
67:       end
assert_response(type, message = nil)

Asserts that the response is one of the following types:

  • :success - Status code was 200
  • :redirect - Status code was in the 300-399 range
  • :missing - Status code was 404
  • :error - Status code was in the 500-599 range

You can also pass an explicit status number like assert_response(501) or its symbolic equivalent assert_response(:not_implemented). See Rack::Utils::SYMBOL_TO_STATUS_CODE for a full list.

Examples

  # assert that the response was a redirection
  assert_response :redirect

  # assert that the response code was status code 401 (unauthorized)
  assert_response 401

Source: show | on GitHub 

    # File actionpack/lib/action_dispatch/testing/assertions/response.rb, line 28
28:       def assert_response(type, message = nil)
29:         validate_request!
30: 
31:         if type.in?([:success, :missing, :redirect, :error]) && @response.send("#{type}?")
32:           assert_block("") { true } # to count the assertion
33:         elsif type.is_a?(Fixnum) && @response.response_code == type
34:           assert_block("") { true } # to count the assertion
35:         elsif type.is_a?(Symbol) && @response.response_code == Rack::Utils::SYMBOL_TO_STATUS_CODE[type]
36:           assert_block("") { true } # to count the assertion
37:         else
38:           flunk(build_message(message, "Expected response to be a <?>, but was <?>", type, @response.response_code))
39:         end
40:       end