require 'rack/session/abstract/id' require 'active_support/core_ext/object/to_query' require 'active_support/core_ext/module/anonymous' require 'active_support/core_ext/hash/keys' require 'action_controller/template_assertions' require 'rails-dom-testing' module ActionController class TestRequest < ActionDispatch::TestRequest #:nodoc: DEFAULT_ENV = ActionDispatch::TestRequest::DEFAULT_ENV.dup DEFAULT_ENV.delete 'PATH_INFO' def initialize(env = {}) super self.session = TestSession.new self.session_options = TestSession::DEFAULT_OPTIONS end def assign_parameters(routes, controller_path, action, parameters = {}) parameters = parameters.symbolize_keys.merge(:controller => controller_path, :action => action) extra_keys = routes.extra_keys(parameters) non_path_parameters = get? ? query_parameters : request_parameters parameters.each do |key, value| if value.is_a?(Array) && (value.frozen? || value.any?(&:frozen?)) value = value.map{ |v| v.duplicable? ? v.dup : v } elsif value.is_a?(Hash) && (value.frozen? || value.any?{ |k,v| v.frozen? }) value = Hash[value.map{ |k,v| [k, v.duplicable? ? v.dup : v] }] elsif value.frozen? && value.duplicable? value = value.dup end if extra_keys.include?(key) non_path_parameters[key] = value else if value.is_a?(Array) value = value.map(&:to_param) else value = value.to_param end path_parameters[key] = value end end # Clear the combined params hash in case it was already referenced. @env.delete("action_dispatch.request.parameters") # Clear the filter cache variables so they're not stale @filtered_parameters = @filtered_env = @filtered_path = nil params = self.request_parameters.dup %w(controller action only_path).each do |k| params.delete(k) params.delete(k.to_sym) end data = params.to_query @env['CONTENT_LENGTH'] = data.length.to_s @env['rack.input'] = StringIO.new(data) end def recycle! @formats = nil @env.delete_if { |k, v| k =~ /^(action_dispatch|rack)\.request/ } @env.delete_if { |k, v| k =~ /^action_dispatch\.rescue/ } @method = @request_method = nil @fullpath = @ip = @remote_ip = @protocol = nil @env['action_dispatch.request.query_parameters'] = {} @set_cookies ||= {} @set_cookies.update(Hash[cookie_jar.instance_variable_get("@set_cookies").map{ |k,o| [k,o[:value]] }]) deleted_cookies = cookie_jar.instance_variable_get("@delete_cookies") @set_cookies.reject!{ |k,v| deleted_cookies.include?(k) } cookie_jar.update(rack_cookies) cookie_jar.update(cookies) cookie_jar.update(@set_cookies) cookie_jar.recycle! end private def default_env DEFAULT_ENV end end class TestResponse < ActionDispatch::TestResponse def recycle! initialize end end class LiveTestResponse < Live::Response def recycle! @body = nil initialize end def body @body ||= super end # Was the response successful? alias_method :success?, :successful? # Was the URL not found? alias_method :missing?, :not_found? # Were we redirected? alias_method :redirect?, :redirection? # Was there a server-side error? alias_method :error?, :server_error? end # Methods #destroy and #load! are overridden to avoid calling methods on the # @store object, which does not exist for the TestSession class. class TestSession < Rack::Session::Abstract::SessionHash #:nodoc: DEFAULT_OPTIONS = Rack::Session::Abstract::ID::DEFAULT_OPTIONS def initialize(session = {}) super(nil, nil) @id = SecureRandom.hex(16) @data = stringify_keys(session) @loaded = true end def exists? true end def keys @data.keys end def values @data.values end def destroy clear end private def load! @id end end # Superclass for ActionController functional tests. Functional tests allow you to # test a single controller action per test method. This should not be confused with # integration tests (see ActionDispatch::IntegrationTest), which are more like # "stories" that can involve multiple controllers and multiple actions (i.e. multiple # different HTTP requests). # # == Basic example # # Functional tests are written as follows: # 1. First, one uses the +get+, +post+, +patch+, +put+, +delete+ or +head+ method to simulate # an HTTP request. # 2. Then, one asserts whether the current state is as expected. "State" can be anything: # the controller's HTTP response, the database contents, etc. # # For example: # # class BooksControllerTest < ActionController::TestCase # def test_create # # Simulate a POST response with the given HTTP parameters. # post(:create, book: { title: "Love Hina" }) # # # Assert that the controller tried to redirect us to # # the created book's URI. # assert_response :found # # # Assert that the controller really put the book in the database. # assert_not_nil Book.find_by(title: "Love Hina") # end # end # # You can also send a real document in the simulated HTTP request. # # def test_create # json = {book: { title: "Love Hina" }}.to_json # post :create, json # end # # == Special instance variables # # ActionController::TestCase will also automatically provide the following instance # variables for use in the tests: # # @controller:: # The controller instance that will be tested. # @request:: # An ActionController::TestRequest, representing the current HTTP # request. You can modify this object before sending the HTTP request. For example, # you might want to set some session properties before sending a GET request. # @response:: # An ActionController::TestResponse object, representing the response # of the last HTTP response. In the above example, @response becomes valid # after calling +post+. If the various assert methods are not sufficient, then you # may use this object to inspect the HTTP response in detail. # # (Earlier versions of \Rails required each functional test to subclass # Test::Unit::TestCase and define @controller, @request, @response in +setup+.) # # == Controller is automatically inferred # # ActionController::TestCase will automatically infer the controller under test # from the test class name. If the controller cannot be inferred from the test # class name, you can explicitly set it with +tests+. # # class SpecialEdgeCaseWidgetsControllerTest < ActionController::TestCase # tests WidgetController # end # # == \Testing controller internals # # In addition to these specific assertions, you also have easy access to various collections that the regular test/unit assertions # can be used against. These collections are: # # * assigns: Instance variables assigned in the action that are available for the view. # * session: Objects being saved in the session. # * flash: The flash objects currently in the session. # * cookies: \Cookies being sent to the user on this request. # # These collections can be used just like any other hash: # # assert_not_nil assigns(:person) # makes sure that a @person instance variable was set # assert_equal "Dave", cookies[:name] # makes sure that a cookie called :name was set as "Dave" # assert flash.empty? # makes sure that there's nothing in the flash # # For historic reasons, the assigns hash uses string-based keys. So assigns[:person] won't work, but assigns["person"] will. To # appease our yearning for symbols, though, an alternative accessor has been devised using a method call instead of index referencing. # So assigns(:person) will work just like assigns["person"], but again, assigns[:person] will not work. # # On top of the collections, you have the complete url that a given action redirected to available in redirect_to_url. # # For redirects within the same controller, you can even call follow_redirect and the redirect will be followed, triggering another # action call which can then be asserted against. # # == Manipulating session and cookie variables # # Sometimes you need to set up the session and cookie variables for a test. # To do this just assign a value to the session or cookie collection: # # session[:key] = "value" # cookies[:key] = "value" # # To clear the cookies for a test just clear the cookie collection: # # cookies.clear # # == \Testing named routes # # If you're using named routes, they can be easily tested using the original named routes' methods straight in the test case. # # assert_redirected_to page_url(title: 'foo') class TestCase < ActiveSupport::TestCase module Behavior extend ActiveSupport::Concern include ActionDispatch::TestProcess include ActiveSupport::Testing::ConstantLookup include Rails::Dom::Testing::Assertions attr_reader :response, :request module ClassMethods # Sets the controller class name. Useful if the name can't be inferred from test class. # Normalizes +controller_class+ before using. # # tests WidgetController # tests :widget # tests 'widget' def tests(controller_class) case controller_class when String, Symbol self.controller_class = "#{controller_class.to_s.camelize}Controller".constantize when Class self.controller_class = controller_class else raise ArgumentError, "controller class must be a String, Symbol, or Class" end end def controller_class=(new_class) self._controller_class = new_class end def controller_class if current_controller_class = self._controller_class current_controller_class else self.controller_class = determine_default_controller_class(name) end end def determine_default_controller_class(name) determine_constant_from_test_name(name) do |constant| Class === constant && constant < ActionController::Metal end end end # Simulate a GET request with the given parameters. # # - +action+: The controller action to call. # - +params+: The hash with HTTP parameters that you want to pass. This may be +nil+. # - +body+: The request body with a string that is appropriately encoded # (application/x-www-form-urlencoded or multipart/form-data). # - +session+: A hash of parameters to store in the session. This may be +nil+. # - +flash+: A hash of parameters to store in the flash. This may be +nil+. # # You can also simulate POST, PATCH, PUT, DELETE, and HEAD requests with # +post+, +patch+, +put+, +delete+, and +head+. # Example sending parameters, session and setting a flash message: # # get :show, # params: { id: 7 }, # session: { user_id: 1 }, # flash: { notice: 'This is flash message' } # # Note that the request method is not verified. The different methods are # available to make the tests more expressive. def get(action, *args) process_with_kwargs("GET", action, *args) end # Simulate a POST request with the given parameters and set/volley the response. # See +get+ for more details. def post(action, *args) process_with_kwargs("POST", action, *args) end # Simulate a PATCH request with the given parameters and set/volley the response. # See +get+ for more details. def patch(action, *args) process_with_kwargs("PATCH", action, *args) end # Simulate a PUT request with the given parameters and set/volley the response. # See +get+ for more details. def put(action, *args) process_with_kwargs("PUT", action, *args) end # Simulate a DELETE request with the given parameters and set/volley the response. # See +get+ for more details. def delete(action, *args) process_with_kwargs("DELETE", action, *args) end # Simulate a HEAD request with the given parameters and set/volley the response. # See +get+ for more details. def head(action, *args) process_with_kwargs("HEAD", action, *args) end def xml_http_request(*args) ActiveSupport::Deprecation.warn(<<-MSG.strip_heredoc) xhr and xml_http_request methods are deprecated in favor of `get :index, xhr: true` and `post :create, xhr: true` MSG @request.env['HTTP_X_REQUESTED_WITH'] = 'XMLHttpRequest' @request.env['HTTP_ACCEPT'] ||= [Mime::JS, Mime::HTML, Mime::XML, 'text/xml', Mime::ALL].join(', ') __send__(*args).tap do @request.env.delete 'HTTP_X_REQUESTED_WITH' @request.env.delete 'HTTP_ACCEPT' end end alias xhr :xml_http_request def paramify_values(hash_or_array_or_value) case hash_or_array_or_value when Hash Hash[hash_or_array_or_value.map{|key, value| [key, paramify_values(value)] }] when Array hash_or_array_or_value.map {|i| paramify_values(i)} when Rack::Test::UploadedFile, ActionDispatch::Http::UploadedFile hash_or_array_or_value else hash_or_array_or_value.to_param end end # Simulate a HTTP request to +action+ by specifying request method, # parameters and set/volley the response. # # - +action+: The controller action to call. # - +method+: Request method used to send the HTTP request. Possible values # are +GET+, +POST+, +PATCH+, +PUT+, +DELETE+, +HEAD+. Defaults to +GET+. Can be a symbol. # - +params+: The hash with HTTP parameters that you want to pass. This may be +nil+. # - +body+: The request body with a string that is appropriately encoded # (application/x-www-form-urlencoded or multipart/form-data). # - +session+: A hash of parameters to store in the session. This may be +nil+. # - +flash+: A hash of parameters to store in the flash. This may be +nil+. # - +format+: Request format. Defaults to +nil+. Can be string or symbol. # # Example calling +create+ action and sending two params: # # process :create, # method: 'POST', # params: { # user: { name: 'Gaurish Sharma', email: 'user@example.com' } # }, # session: { user_id: 1 }, # flash: { notice: 'This is flash message' } # # To simulate +GET+, +POST+, +PATCH+, +PUT+, +DELETE+ and +HEAD+ requests # prefer using #get, #post, #patch, #put, #delete and #head methods # respectively which will make tests more expressive. # # Note that the request method is not verified. def process(action, *args) check_required_ivars if kwarg_request?(args) parameters, session, body, flash, http_method, format, xhr = args[0].values_at(:params, :session, :body, :flash, :method, :format, :xhr) else http_method, parameters, session, flash = args format = nil if parameters.is_a?(String) && http_method != 'HEAD' body = parameters parameters = nil end if parameters.present? || session.present? || flash.present? non_kwarg_request_warning end end if body.present? @request.env['RAW_POST_DATA'] = body end if http_method.present? http_method = http_method.to_s.upcase else http_method = "GET" end parameters ||= {} # Ensure that numbers and symbols passed as params are converted to # proper params, as is the case when engaging rack. parameters = paramify_values(parameters) if html_format?(parameters) if format.present? parameters[:format] = format end @html_document = nil unless @controller.respond_to?(:recycle!) @controller.extend(Testing::Functional) end @request.recycle! @response.recycle! @controller.recycle! @request.env['REQUEST_METHOD'] = http_method controller_class_name = @controller.class.anonymous? ? "anonymous" : @controller.class.controller_path @request.assign_parameters(@routes, controller_class_name, action.to_s, parameters) @request.session.update(session) if session @request.flash.update(flash || {}) if xhr @request.env['HTTP_X_REQUESTED_WITH'] = 'XMLHttpRequest' @request.env['HTTP_ACCEPT'] ||= [Mime::JS, Mime::HTML, Mime::XML, 'text/xml', Mime::ALL].join(', ') end @controller.request = @request @controller.response = @response build_request_uri(action, parameters) name = @request.parameters[:action] @controller.recycle! @controller.process(name) if cookies = @request.env['action_dispatch.cookies'] unless @response.committed? cookies.write(@response) end end @response.prepare! @assigns = @controller.respond_to?(:view_assigns) ? @controller.view_assigns : {} if flash_value = @request.flash.to_session_value @request.session['flash'] = flash_value else @request.session.delete('flash') end if xhr @request.env.delete 'HTTP_X_REQUESTED_WITH' @request.env.delete 'HTTP_ACCEPT' end @response end def setup_controller_request_and_response @controller = nil unless defined? @controller response_klass = TestResponse if klass = self.class.controller_class if klass < ActionController::Live response_klass = LiveTestResponse end unless @controller begin @controller = klass.new rescue warn "could not construct controller #{klass}" if $VERBOSE end end end @request = build_request @response = build_response response_klass @response.request = @request if @controller @controller.request = @request @controller.params = {} end end def build_request TestRequest.new end def build_response(klass) klass.new end included do include ActionController::TemplateAssertions include ActionDispatch::Assertions class_attribute :_controller_class setup :setup_controller_request_and_response end private def process_with_kwargs(http_method, action, *args) if kwarg_request?(args) args.first.merge!(method: http_method) process(action, *args) else non_kwarg_request_warning if args.present? args = args.unshift(http_method) process(action, *args) end end REQUEST_KWARGS = %i(params session flash method body xhr) def kwarg_request?(args) args[0].respond_to?(:keys) && ( (args[0].key?(:format) && args[0].keys.size == 1) || args[0].keys.any? { |k| REQUEST_KWARGS.include?(k) } ) end def non_kwarg_request_warning ActiveSupport::Deprecation.warn(<<-MSG.strip_heredoc) ActionController::TestCase HTTP request methods will accept only keyword arguments in future Rails versions. Examples: get :show, params: { id: 1 }, session: { user_id: 1 } process :update, method: :post, params: { id: 1 } MSG end def document_root_element html_document.root end def check_required_ivars # Sanity check for required instance variables so we can give an # understandable error message. [:@routes, :@controller, :@request, :@response].each do |iv_name| if !instance_variable_defined?(iv_name) || instance_variable_get(iv_name).nil? raise "#{iv_name} is nil: make sure you set it in your test's setup method." end end end def build_request_uri(action, parameters) unless @request.env["PATH_INFO"] options = @controller.respond_to?(:url_options) ? @controller.__send__(:url_options).merge(parameters) : parameters options.update( :action => action, :relative_url_root => nil, :_recall => @request.path_parameters) url, query_string = @routes.path_for(options).split("?", 2) @request.env["SCRIPT_NAME"] = @controller.config.relative_url_root @request.env["PATH_INFO"] = url @request.env["QUERY_STRING"] = query_string || "" end end def html_format?(parameters) return true unless parameters.key?(:format) Mime.fetch(parameters[:format]) { Mime['html'] }.html? end end include Behavior end end