1 files changed, 231 insertions, 222 deletions

diff --git a/actionpack/test/controller/test_case_test.rb b/actionpack/test/controller/test_case_test.rb
index e288b51716..696794a3eb 100644
--- a/actionpack/test/controller/test_case_test.rb
+++ b/actionpack/test/controller/test_case_test.rb
@@ -1,40 +1,40 @@
-require 'abstract_unit'
-require 'controller/fake_controllers'
-require 'active_support/json/decoding'
-require 'rails/engine'
+require "abstract_unit"
+require "controller/fake_controllers"
+require "active_support/json/decoding"
+require "rails/engine"
 
 class TestCaseTest < ActionController::TestCase
   def self.fixture_path; end;
 
   class TestController < ActionController::Base
     def no_op
-      render plain: 'dummy'
+      render plain: "dummy"
     end
 
     def set_flash
       flash["test"] = ">#{flash["test"]}<"
-      render plain: 'ignore me'
+      render plain: "ignore me"
     end
 
     def delete_flash
       flash.delete("test")
-      render plain: 'ignore me'
+      render plain: "ignore me"
     end
 
     def set_flash_now
       flash.now["test_now"] = ">#{flash["test_now"]}<"
-      render plain: 'ignore me'
+      render plain: "ignore me"
     end
 
     def set_session
-      session['string'] = 'A wonder'
-      session[:symbol] = 'it works'
-      render plain: 'Success'
+      session["string"] = "A wonder"
+      session[:symbol] = "it works"
+      render plain: "Success"
     end
 
     def reset_the_session
       reset_session
-      render plain: 'ignore me'
+      render plain: "ignore me"
     end
 
     def render_raw_post
@@ -126,15 +126,15 @@ XML
     end
 
     def redirect_to_same_controller
-      redirect_to controller: 'test', action: 'test_uri', id: 5
+      redirect_to controller: "test", action: "test_uri", id: 5
     end
 
     def redirect_to_different_controller
-      redirect_to controller: 'fail', id: 5
+      redirect_to controller: "fail", id: 5
     end
 
     def create
-      head :created, location: 'created resource'
+      head :created, location: "created resource"
     end
 
     def render_cookie
@@ -143,7 +143,7 @@ XML
 
     def delete_cookie
       cookies.delete("foo")
-      render plain: 'ok'
+      render plain: "ok"
     end
 
     def test_without_body
@@ -155,7 +155,7 @@ XML
     end
 
     def boom
-      raise 'boom!'
+      raise "boom!"
     end
 
     private
@@ -168,18 +168,18 @@ XML
   def setup
     super
     @controller = TestController.new
-    @request.delete_header 'PATH_INFO'
+    @request.delete_header "PATH_INFO"
     @routes = ActionDispatch::Routing::RouteSet.new.tap do |r|
       r.draw do
         ActiveSupport::Deprecation.silence do
-          get ':controller(/:action(/:id))'
+          get ":controller(/:action(/:id))"
         end
       end
     end
   end
 
   class DefaultUrlOptionsCachingController < ActionController::Base
-    before_action { @dynamic_opt = 'opt' }
+    before_action { @dynamic_opt = "opt" }
 
     def test_url_options_reset
       render plain: url_for
@@ -197,32 +197,32 @@ XML
   def test_assert_select_without_body
     get :test_without_body
 
-    assert_select 'body', 0
-    assert_select 'div.foo'
+    assert_select "body", 0
+    assert_select "div.foo"
   end
 
   def test_assert_select_with_body
     get :test_with_body
 
-    assert_select 'body.foo'
+    assert_select "body.foo"
   end
 
   def test_url_options_reset
     @controller = DefaultUrlOptionsCachingController.new
     get :test_url_options_reset
-    assert_nil @request.params['dynamic_opt']
+    assert_nil @request.params["dynamic_opt"]
     assert_match(/dynamic_opt=opt/, @response.body)
   end
 
   def test_raw_post_handling
-    params = Hash[:page, { name: 'page name' }, 'some key', 123]
+    params = Hash[:page, { name: "page name" }, "some key", 123]
     post :render_raw_post, params: params.dup
 
     assert_equal params.to_query, @response.body
   end
 
   def test_body_stream
-    params = Hash[:page, { name: 'page name' }, 'some key', 123]
+    params = Hash[:page, { name: "page name" }, "some key", 123]
 
     post :render_body, params: params.dup
 
@@ -230,7 +230,7 @@ XML
   end
 
   def test_deprecated_body_stream
-    params = Hash[:page, { name: 'page name' }, 'some key', 123]
+    params = Hash[:page, { name: "page name" }, "some key", 123]
 
     assert_deprecated { post :render_body, params.dup }
 
@@ -239,7 +239,7 @@ XML
 
   def test_document_body_and_params_with_post
     post :test_params, params: { id: 1 }
-    assert_equal({"id"=>"1", "controller"=>"test_case_test/test", "action"=>"test_params"}, ::JSON.parse(@response.body))
+    assert_equal({ "id"=>"1", "controller"=>"test_case_test/test", "action"=>"test_params" }, ::JSON.parse(@response.body))
   end
 
   def test_document_body_with_post
@@ -269,31 +269,31 @@ XML
 
   def test_process_without_flash
     process :set_flash
-    assert_equal '><', flash['test']
+    assert_equal "><", flash["test"]
   end
 
   def test_deprecated_process_with_flash
-    assert_deprecated { process :set_flash, "GET", nil, nil, { "test" => "value" } }
-    assert_equal '>value<', flash['test']
+    assert_deprecated { process :set_flash, "GET", nil, nil, "test" => "value" }
+    assert_equal ">value<", flash["test"]
   end
 
   def test_process_with_flash
     process :set_flash,
       method: "GET",
       flash: { "test" => "value" }
-    assert_equal '>value<', flash['test']
+    assert_equal ">value<", flash["test"]
   end
 
   def test_deprecated_process_with_flash_now
-    assert_deprecated { process :set_flash_now, "GET", nil, nil, { "test_now" => "value_now" } }
-    assert_equal '>value_now<', flash['test_now']
+    assert_deprecated { process :set_flash_now, "GET", nil, nil, "test_now" => "value_now" }
+    assert_equal ">value_now<", flash["test_now"]
   end
 
   def test_process_with_flash_now
     process :set_flash_now,
       method: "GET",
       flash: { "test_now" => "value_now" }
-    assert_equal '>value_now<', flash['test_now']
+    assert_equal ">value_now<", flash["test_now"]
   end
 
   def test_process_delete_flash
@@ -305,64 +305,64 @@ XML
 
   def test_process_with_session
     process :set_session
-    assert_equal 'A wonder', session['string'], "A value stored in the session should be available by string key"
-    assert_equal 'A wonder', session[:string], "Test session hash should allow indifferent access"
-    assert_equal 'it works', session['symbol'], "Test session hash should allow indifferent access"
-    assert_equal 'it works', session[:symbol], "Test session hash should allow indifferent access"
+    assert_equal "A wonder", session["string"], "A value stored in the session should be available by string key"
+    assert_equal "A wonder", session[:string], "Test session hash should allow indifferent access"
+    assert_equal "it works", session["symbol"], "Test session hash should allow indifferent access"
+    assert_equal "it works", session[:symbol], "Test session hash should allow indifferent access"
   end
 
   def test_process_with_session_arg
-    assert_deprecated { process :no_op, "GET", nil, { 'string' => 'value1', symbol: 'value2' } }
-    assert_equal 'value1', session['string']
-    assert_equal 'value1', session[:string]
-    assert_equal 'value2', session['symbol']
-    assert_equal 'value2', session[:symbol]
+    assert_deprecated { process :no_op, "GET", nil, "string" => "value1", symbol: "value2" }
+    assert_equal "value1", session["string"]
+    assert_equal "value1", session[:string]
+    assert_equal "value2", session["symbol"]
+    assert_equal "value2", session[:symbol]
   end
 
   def test_process_with_session_kwarg
-    process :no_op, method: "GET", session: { 'string' => 'value1', symbol: 'value2' }
-    assert_equal 'value1', session['string']
-    assert_equal 'value1', session[:string]
-    assert_equal 'value2', session['symbol']
-    assert_equal 'value2', session[:symbol]
+    process :no_op, method: "GET", session: { "string" => "value1", symbol: "value2" }
+    assert_equal "value1", session["string"]
+    assert_equal "value1", session[:string]
+    assert_equal "value2", session["symbol"]
+    assert_equal "value2", session[:symbol]
   end
 
   def test_deprecated_process_merges_session_arg
-    session[:foo] = 'bar'
+    session[:foo] = "bar"
     assert_deprecated {
-      get :no_op, nil, { bar: 'baz' }
+      get :no_op, nil, bar: "baz"
     }
-    assert_equal 'bar', session[:foo]
-    assert_equal 'baz', session[:bar]
+    assert_equal "bar", session[:foo]
+    assert_equal "baz", session[:bar]
   end
 
   def test_process_merges_session_arg
-    session[:foo] = 'bar'
-    get :no_op, session: { bar: 'baz' }
-    assert_equal 'bar', session[:foo]
-    assert_equal 'baz', session[:bar]
+    session[:foo] = "bar"
+    get :no_op, session: { bar: "baz" }
+    assert_equal "bar", session[:foo]
+    assert_equal "baz", session[:bar]
   end
 
   def test_deprecated_merged_session_arg_is_retained_across_requests
     assert_deprecated {
-      get :no_op, nil, { foo: 'bar' }
+      get :no_op, nil, foo: "bar"
     }
-    assert_equal 'bar', session[:foo]
+    assert_equal "bar", session[:foo]
     get :no_op
-    assert_equal 'bar', session[:foo]
+    assert_equal "bar", session[:foo]
   end
 
   def test_merged_session_arg_is_retained_across_requests
-    get :no_op, session: { foo: 'bar' }
-    assert_equal 'bar', session[:foo]
+    get :no_op, session: { foo: "bar" }
+    assert_equal "bar", session[:foo]
     get :no_op
-    assert_equal 'bar', session[:foo]
+    assert_equal "bar", session[:foo]
   end
 
   def test_process_overwrites_existing_session_arg
-    session[:foo] = 'bar'
-    get :no_op, session: { foo: 'baz' }
-    assert_equal 'baz', session[:foo]
+    session[:foo] = "bar"
+    get :no_op, session: { foo: "baz" }
+    assert_equal "baz", session[:foo]
   end
 
   def test_session_is_cleared_from_controller_after_reset_session
@@ -407,13 +407,13 @@ XML
   end
 
   def test_deprecated_process_with_request_uri_with_params_with_explicit_uri
-    @request.env['PATH_INFO'] = "/explicit/uri"
+    @request.env["PATH_INFO"] = "/explicit/uri"
     assert_deprecated { process :test_uri, "GET", id: 7 }
     assert_equal "/explicit/uri", @response.body
   end
 
   def test_process_with_request_uri_with_params_with_explicit_uri
-    @request.env['PATH_INFO'] = "/explicit/uri"
+    @request.env["PATH_INFO"] = "/explicit/uri"
     process :test_uri, method: "GET", params: { id: 7 }
     assert_equal "/explicit/uri", @response.body
   end
@@ -421,13 +421,13 @@ XML
   def test_process_with_query_string
     process :test_query_string,
       method: "GET",
-      params: { q: 'test' }
+      params: { q: "test" }
     assert_equal "q=test", @response.body
   end
 
   def test_process_with_query_string_with_explicit_uri
-    @request.env['PATH_INFO'] = '/explicit/uri'
-    @request.env['QUERY_STRING'] = 'q=test?extra=question'
+    @request.env["PATH_INFO"] = "/explicit/uri"
+    @request.env["QUERY_STRING"] = "q=test?extra=question"
     process :test_query_string
     assert_equal "q=test?extra=question", @response.body
   end
@@ -444,7 +444,7 @@ XML
 
     begin
       $stderr = StringIO.new
-      assert_select 'area' #This will cause a warning if content is processed as HTML
+      assert_select "area" #This will cause a warning if content is processed as HTML
       $stderr.rewind && err = $stderr.read
     ensure
       $stderr = STDERR
@@ -454,21 +454,21 @@ XML
   end
 
   def test_assert_generates
-    assert_generates 'controller/action/5', controller: 'controller', action: 'action', id: '5'
-    assert_generates 'controller/action/7', { id: "7" }, { controller: "controller", action: "action" }
-    assert_generates 'controller/action/5', { controller: "controller", action: "action", id: "5", name: "bob" }, {}, { name: "bob" }
-    assert_generates 'controller/action/7', { id: "7", name: "bob" }, { controller: "controller", action: "action" }, { name: "bob" }
-    assert_generates 'controller/action/7', { id: "7" }, { controller: "controller", action: "action", name: "bob" }, {}
+    assert_generates "controller/action/5", controller: "controller", action: "action", id: "5"
+    assert_generates "controller/action/7", { id: "7" }, controller: "controller", action: "action"
+    assert_generates "controller/action/5", { controller: "controller", action: "action", id: "5", name: "bob" }, {}, name: "bob"
+    assert_generates "controller/action/7", { id: "7", name: "bob" }, { controller: "controller", action: "action" }, name: "bob"
+    assert_generates "controller/action/7", { id: "7" }, { controller: "controller", action: "action", name: "bob" }, {}
   end
 
   def test_assert_routing
-    assert_routing 'content', controller: 'content', action: 'index'
+    assert_routing "content", controller: "content", action: "index"
   end
 
   def test_assert_routing_with_method
     with_routing do |set|
       set.draw { resources(:content) }
-      assert_routing({ method: 'post', path: 'content' }, { controller: 'content', action: 'create' })
+      assert_routing({ method: "post", path: "content" }, controller: "content", action: "create")
     end
   end
 
@@ -476,30 +476,30 @@ XML
     with_routing do |set|
       set.draw do
         namespace :admin do
-          get 'user' => 'user#index'
+          get "user" => "user#index"
         end
       end
 
-      assert_routing 'admin/user', controller: 'admin/user', action: 'index'
+      assert_routing "admin/user", controller: "admin/user", action: "index"
     end
   end
 
   def test_assert_routing_with_glob
     with_routing do |set|
-      set.draw { get('*path' => "pages#show") }
-      assert_routing('/company/about', { controller: 'pages', action: 'show', path: 'company/about' })
+      set.draw { get("*path" => "pages#show") }
+      assert_routing("/company/about", controller: "pages", action: "show", path: "company/about")
     end
   end
 
   def test_deprecated_params_passing
     assert_deprecated {
-      get :test_params, page: { name: "Page name", month: '4', year: '2004', day: '6' }
+      get :test_params, page: { name: "Page name", month: "4", year: "2004", day: "6" }
     }
     parsed_params = ::JSON.parse(@response.body)
     assert_equal(
       {
-        'controller' => 'test_case_test/test', 'action' => 'test_params',
-        'page' => { 'name' => "Page name", 'month' => '4', 'year' => '2004', 'day' => '6' }
+        "controller" => "test_case_test/test", "action" => "test_params",
+        "page" => { "name" => "Page name", "month" => "4", "year" => "2004", "day" => "6" }
       },
       parsed_params
     )
@@ -509,52 +509,52 @@ XML
     get :test_params, params: {
       page: {
         name: "Page name",
-        month: '4',
-        year: '2004',
-        day: '6'
+        month: "4",
+        year: "2004",
+        day: "6"
       }
     }
     parsed_params = ::JSON.parse(@response.body)
     assert_equal(
       {
-        'controller' => 'test_case_test/test', 'action' => 'test_params',
-        'page' => { 'name' => "Page name", 'month' => '4', 'year' => '2004', 'day' => '6' }
+        "controller" => "test_case_test/test", "action" => "test_params",
+        "page" => { "name" => "Page name", "month" => "4", "year" => "2004", "day" => "6" }
       },
       parsed_params
     )
   end
 
   def test_query_param_named_action
-    get :test_query_parameters, params: {action: 'foobar'}
+    get :test_query_parameters, params: { action: "foobar" }
     parsed_params = JSON.parse(@response.body)
-    assert_equal({'action' => 'foobar'}, parsed_params)
+    assert_equal({ "action" => "foobar" }, parsed_params)
   end
 
   def test_request_param_named_action
-    post :test_request_parameters, params: {action: 'foobar'}
+    post :test_request_parameters, params: { action: "foobar" }
     parsed_params = eval(@response.body)
-    assert_equal({'action' => 'foobar'}, parsed_params)
+    assert_equal({ "action" => "foobar" }, parsed_params)
   end
 
   def test_kwarg_params_passing_with_session_and_flash
     get :test_params, params: {
       page: {
         name: "Page name",
-        month: '4',
-        year: '2004',
-        day: '6'
+        month: "4",
+        year: "2004",
+        day: "6"
       }
-    }, session: { 'foo' => 'bar' }, flash: { notice: 'created' }
+    }, session: { "foo" => "bar" }, flash: { notice: "created" }
 
     parsed_params = ::JSON.parse(@response.body)
     assert_equal(
-      {'controller' => 'test_case_test/test', 'action' => 'test_params',
-       'page' => {'name' => "Page name", 'month' => '4', 'year' => '2004', 'day' => '6'}},
+      { "controller" => "test_case_test/test", "action" => "test_params",
+       "page" => { "name" => "Page name", "month" => "4", "year" => "2004", "day" => "6" } },
       parsed_params
     )
 
-    assert_equal 'bar', session[:foo]
-    assert_equal 'created', flash[:notice]
+    assert_equal "bar", session[:foo]
+    assert_equal "created", flash[:notice]
   end
 
   def test_params_passing_with_integer
@@ -563,38 +563,38 @@ XML
     }
     parsed_params = ::JSON.parse(@response.body)
     assert_equal(
-      {'controller' => 'test_case_test/test', 'action' => 'test_params',
-       'page' => {'name' => "Page name", 'month' => '4', 'year' => '2004', 'day' => '6'}},
+      { "controller" => "test_case_test/test", "action" => "test_params",
+       "page" => { "name" => "Page name", "month" => "4", "year" => "2004", "day" => "6" } },
       parsed_params
     )
   end
 
   def test_params_passing_with_integers_when_not_html_request
-    get :test_params, params: { format: 'json', count: 999 }
+    get :test_params, params: { format: "json", count: 999 }
     parsed_params = ::JSON.parse(@response.body)
     assert_equal(
-      {'controller' => 'test_case_test/test', 'action' => 'test_params',
-       'format' => 'json', 'count' => '999' },
+      { "controller" => "test_case_test/test", "action" => "test_params",
+       "format" => "json", "count" => "999" },
       parsed_params
     )
   end
 
   def test_params_passing_path_parameter_is_string_when_not_html_request
-    get :test_params, params: { format: 'json', id: 1 }
+    get :test_params, params: { format: "json", id: 1 }
     parsed_params = ::JSON.parse(@response.body)
     assert_equal(
-      {'controller' => 'test_case_test/test', 'action' => 'test_params',
-       'format' => 'json', 'id' => '1' },
+      { "controller" => "test_case_test/test", "action" => "test_params",
+       "format" => "json", "id" => "1" },
       parsed_params
     )
   end
 
   def test_deprecated_params_passing_path_parameter_is_string_when_not_html_request
-    assert_deprecated { get :test_params, format: 'json', id: 1 }
+    assert_deprecated { get :test_params, format: "json", id: 1 }
     parsed_params = ::JSON.parse(@response.body)
     assert_equal(
-      {'controller' => 'test_case_test/test', 'action' => 'test_params',
-       'format' => 'json', 'id' => '1' },
+      { "controller" => "test_case_test/test", "action" => "test_params",
+       "format" => "json", "id" => "1" },
       parsed_params
     )
   end
@@ -602,13 +602,13 @@ XML
   def test_params_passing_with_frozen_values
     assert_nothing_raised do
       get :test_params, params: {
-        frozen: 'icy'.freeze, frozens: ['icy'.freeze].freeze, deepfreeze: { frozen: 'icy'.freeze }.freeze
+        frozen: "icy".freeze, frozens: ["icy".freeze].freeze, deepfreeze: { frozen: "icy".freeze }.freeze
       }
     end
     parsed_params = ::JSON.parse(@response.body)
     assert_equal(
-      {'controller' => 'test_case_test/test', 'action' => 'test_params',
-       'frozen' => 'icy', 'frozens' => ['icy'], 'deepfreeze' => { 'frozen' => 'icy' }},
+      { "controller" => "test_case_test/test", "action" => "test_params",
+       "frozen" => "icy", "frozens" => ["icy"], "deepfreeze" => { "frozen" => "icy" } },
       parsed_params
     )
   end
@@ -620,8 +620,8 @@ XML
   end
 
   test "set additional HTTP headers" do
-    @request.headers['Referer'] = "http://nohost.com/home"
-    @request.headers['Content-Type'] = "application/rss+xml"
+    @request.headers["Referer"] = "http://nohost.com/home"
+    @request.headers["Content-Type"] = "application/rss+xml"
     get :test_headers
     parsed_env = ActiveSupport::JSON.decode(@response.body)
     assert_equal "http://nohost.com/home", parsed_env["HTTP_REFERER"]
@@ -629,36 +629,45 @@ XML
   end
 
   test "set additional env variables" do
-    @request.headers['HTTP_REFERER'] = "http://example.com/about"
-    @request.headers['CONTENT_TYPE'] = "application/json"
+    @request.headers["HTTP_REFERER"] = "http://example.com/about"
+    @request.headers["CONTENT_TYPE"] = "application/json"
     get :test_headers
     parsed_env = ActiveSupport::JSON.decode(@response.body)
     assert_equal "http://example.com/about", parsed_env["HTTP_REFERER"]
     assert_equal "application/json", parsed_env["CONTENT_TYPE"]
   end
 
+  def test_using_as_json_sets_request_content_type_to_json
+    post :render_body, params: { bool_value: true, str_value: "string", num_value: 2 }, as: :json
+
+    assert_equal "application/json", @request.headers["CONTENT_TYPE"]
+    assert_equal true, @request.request_parameters[:bool_value]
+    assert_equal "string", @request.request_parameters[:str_value]
+    assert_equal 2, @request.request_parameters[:num_value]
+  end
+
   def test_mutating_content_type_headers_for_plain_text_files_sets_the_header
-    @request.headers['Content-Type'] = 'text/plain'
-    post :render_body, params: { name: 'foo.txt' }
+    @request.headers["Content-Type"] = "text/plain"
+    post :render_body, params: { name: "foo.txt" }
 
-    assert_equal 'text/plain', @request.headers['Content-type']
-    assert_equal 'foo.txt', @request.request_parameters[:name]
-    assert_equal 'render_body', @request.path_parameters[:action]
+    assert_equal "text/plain", @request.headers["Content-type"]
+    assert_equal "foo.txt", @request.request_parameters[:name]
+    assert_equal "render_body", @request.path_parameters[:action]
   end
 
   def test_mutating_content_type_headers_for_html_files_sets_the_header
-    @request.headers['Content-Type'] = 'text/html'
-    post :render_body, params: { name: 'foo.html' }
+    @request.headers["Content-Type"] = "text/html"
+    post :render_body, params: { name: "foo.html" }
 
-    assert_equal 'text/html', @request.headers['Content-type']
-    assert_equal 'foo.html', @request.request_parameters[:name]
-    assert_equal 'render_body', @request.path_parameters[:action]
+    assert_equal "text/html", @request.headers["Content-type"]
+    assert_equal "foo.html", @request.request_parameters[:name]
+    assert_equal "render_body", @request.path_parameters[:action]
   end
 
   def test_mutating_content_type_headers_for_non_registered_mime_type_raises_an_error
     assert_raises(RuntimeError) do
-      @request.headers['Content-Type'] = 'type/fake'
-      post :render_body, params: { name: 'foo.fake' }
+      @request.headers["Content-Type"] = "type/fake"
+      post :render_body, params: { name: "foo.fake" }
     end
   end
 
@@ -670,23 +679,23 @@ XML
   end
 
   def test_deprecared_id_converted_to_string
-    assert_deprecated { get :test_params, id: 20, foo: Object.new}
+    assert_deprecated { get :test_params, id: 20, foo: Object.new }
     assert_kind_of String, @request.path_parameters[:id]
   end
 
   def test_array_path_parameter_handled_properly
     with_routing do |set|
       set.draw do
-        get 'file/*path', to: 'test_case_test/test#test_params'
+        get "file/*path", to: "test_case_test/test#test_params"
 
         ActiveSupport::Deprecation.silence do
-          get ':controller/:action'
+          get ":controller/:action"
         end
       end
 
-      get :test_params, params: { path: ['hello', 'world'] }
-      assert_equal ['hello', 'world'], @request.path_parameters[:path]
-      assert_equal 'hello/world', @request.path_parameters[:path].to_param
+      get :test_params, params: { path: ["hello", "world"] }
+      assert_equal ["hello", "world"], @request.path_parameters[:path]
+      assert_equal "hello/world", @request.path_parameters[:path].to_param
     end
   end
 
@@ -704,8 +713,8 @@ XML
     routes_id = @routes.object_id
 
     begin
-      with_routing { raise 'fail' }
-      fail 'Should not be here.'
+      with_routing { raise "fail" }
+      fail "Should not be here."
     rescue RuntimeError
     end
 
@@ -724,38 +733,38 @@ XML
 
   def test_header_properly_reset_after_remote_http_request
     get :test_params, xhr: true
-    assert_nil @request.env['HTTP_X_REQUESTED_WITH']
-    assert_nil @request.env['HTTP_ACCEPT']
+    assert_nil @request.env["HTTP_X_REQUESTED_WITH"]
+    assert_nil @request.env["HTTP_ACCEPT"]
   end
 
   def test_deprecated_xhr_with_params
     assert_deprecated { xhr :get, :test_params, params: { id: 1 } }
 
-    assert_equal({"id"=>"1", "controller"=>"test_case_test/test", "action"=>"test_params"}, ::JSON.parse(@response.body))
+    assert_equal({ "id"=>"1", "controller"=>"test_case_test/test", "action"=>"test_params" }, ::JSON.parse(@response.body))
   end
 
   def test_xhr_with_params
     get :test_params, params: { id: 1 }, xhr: true
 
-    assert_equal({"id"=>"1", "controller"=>"test_case_test/test", "action"=>"test_params"}, ::JSON.parse(@response.body))
+    assert_equal({ "id"=>"1", "controller"=>"test_case_test/test", "action"=>"test_params" }, ::JSON.parse(@response.body))
   end
 
   def test_xhr_with_session
     get :set_session, xhr: true
 
-    assert_equal 'A wonder', session['string'], "A value stored in the session should be available by string key"
-    assert_equal 'A wonder', session[:string], "Test session hash should allow indifferent access"
-    assert_equal 'it works', session['symbol'], "Test session hash should allow indifferent access"
-    assert_equal 'it works', session[:symbol], "Test session hash should allow indifferent access"
+    assert_equal "A wonder", session["string"], "A value stored in the session should be available by string key"
+    assert_equal "A wonder", session[:string], "Test session hash should allow indifferent access"
+    assert_equal "it works", session["symbol"], "Test session hash should allow indifferent access"
+    assert_equal "it works", session[:symbol], "Test session hash should allow indifferent access"
   end
 
   def test_deprecated_xhr_with_session
     assert_deprecated { xhr :get, :set_session }
 
-    assert_equal 'A wonder', session['string'], "A value stored in the session should be available by string key"
-    assert_equal 'A wonder', session[:string], "Test session hash should allow indifferent access"
-    assert_equal 'it works', session['symbol'], "Test session hash should allow indifferent access"
-    assert_equal 'it works', session[:symbol], "Test session hash should allow indifferent access"
+    assert_equal "A wonder", session["string"], "A value stored in the session should be available by string key"
+    assert_equal "A wonder", session[:string], "Test session hash should allow indifferent access"
+    assert_equal "it works", session["symbol"], "Test session hash should allow indifferent access"
+    assert_equal "it works", session[:symbol], "Test session hash should allow indifferent access"
   end
 
   def test_deprecated_params_reset_between_post_requests
@@ -804,62 +813,62 @@ XML
   end
 
   def test_request_format
-    get :test_format, params: { format: 'html' }
-    assert_equal 'text/html', @response.body
+    get :test_format, params: { format: "html" }
+    assert_equal "text/html", @response.body
 
-    get :test_format, params: { format: 'json' }
-    assert_equal 'application/json', @response.body
+    get :test_format, params: { format: "json" }
+    assert_equal "application/json", @response.body
 
-    get :test_format, params: { format: 'xml' }
-    assert_equal 'application/xml', @response.body
+    get :test_format, params: { format: "xml" }
+    assert_equal "application/xml", @response.body
 
     get :test_format
-    assert_equal 'text/html', @response.body
+    assert_equal "text/html", @response.body
   end
 
   def test_request_format_kwarg
-    get :test_format, format: 'html'
-    assert_equal 'text/html', @response.body
+    get :test_format, format: "html"
+    assert_equal "text/html", @response.body
 
-    get :test_format, format: 'json'
-    assert_equal 'application/json', @response.body
+    get :test_format, format: "json"
+    assert_equal "application/json", @response.body
 
-    get :test_format, format: 'xml'
-    assert_equal 'application/xml', @response.body
+    get :test_format, format: "xml"
+    assert_equal "application/xml", @response.body
 
     get :test_format
-    assert_equal 'text/html', @response.body
+    assert_equal "text/html", @response.body
   end
 
   def test_request_format_kwarg_overrides_params
-    get :test_format, format: 'json', params: { format: 'html' }
-    assert_equal 'application/json', @response.body
+    get :test_format, format: "json", params: { format: "html" }
+    assert_equal "application/json", @response.body
   end
 
   def test_should_have_knowledge_of_client_side_cookie_state_even_if_they_are_not_set
-    cookies['foo'] = 'bar'
+    cookies["foo"] = "bar"
     get :no_op
-    assert_equal 'bar', cookies['foo']
+    assert_equal "bar", cookies["foo"]
   end
 
   def test_cookies_should_be_escaped_properly
-    cookies['foo'] = '+'
+    cookies["foo"] = "+"
     get :render_cookie
-    assert_equal '+', @response.body
+    assert_equal "+", @response.body
   end
 
   def test_should_detect_if_cookie_is_deleted
-    cookies['foo'] = 'bar'
+    cookies["foo"] = "bar"
     get :delete_cookie
-    assert_nil cookies['foo']
+    assert_nil cookies["foo"]
   end
 
   def test_multiple_mixed_method_process_should_scrub_rack_input
-    post :test_params, params: { id: 1, foo: 'an foo' }
-    assert_equal({"id"=>"1", "foo" => "an foo", "controller"=>"test_case_test/test", "action"=>"test_params"}, ::JSON.parse(@response.body))
+    post :test_params, params: { id: 1, foo: "an foo" }
+    assert_equal({ "id"=>"1", "foo" => "an foo", "controller"=>"test_case_test/test", "action"=>"test_params" }, ::JSON.parse(@response.body))
 
-    get :test_params, params: { bar: 'an bar' }
-    assert_equal({"bar"=>"an bar", "controller"=>"test_case_test/test", "action"=>"test_params"}, ::JSON.parse(@response.body))
+    get :test_params, params: { bar: "an bar" }
+    assert_equal({ "bar"=>"an bar", "controller"=>"test_case_test/test", "action"=>"test_params" }, ::JSON.parse(@response.body))
   end
 
   %w(controller response request).each do |variable|
@@ -878,15 +887,15 @@ XML
     end
   end
 
-  FILES_DIR = File.dirname(__FILE__) + '/../fixtures/multipart'
+  FILES_DIR = File.dirname(__FILE__) + "/../fixtures/multipart"
 
-  READ_BINARY = 'rb:binary'
-  READ_PLAIN = 'r:binary'
+  READ_BINARY = "rb:binary"
+  READ_PLAIN = "r:binary"
 
   def test_test_uploaded_file
-    filename = 'mona_lisa.jpg'
+    filename = "mona_lisa.jpg"
     path = "#{FILES_DIR}/#{filename}"
-    content_type = 'image/png'
+    content_type = "image/png"
     expected = File.read(path)
     expected.force_encoding(Encoding::BINARY)
 
@@ -904,15 +913,15 @@ XML
 
   def test_fixture_path_is_accessed_from_self_instead_of_active_support_test_case
     TestCaseTest.stub :fixture_path, FILES_DIR do
-      uploaded_file = fixture_file_upload('/mona_lisa.jpg', 'image/png')
+      uploaded_file = fixture_file_upload("/mona_lisa.jpg", "image/png")
       assert_equal File.open("#{FILES_DIR}/mona_lisa.jpg", READ_PLAIN).read, uploaded_file.read
     end
   end
 
   def test_test_uploaded_file_with_binary
-    filename = 'mona_lisa.jpg'
+    filename = "mona_lisa.jpg"
     path = "#{FILES_DIR}/#{filename}"
-    content_type = 'image/png'
+    content_type = "image/png"
 
     binary_uploaded_file = Rack::Test::UploadedFile.new(path, content_type, :binary)
     assert_equal File.open(path, READ_BINARY).read, binary_uploaded_file.read
@@ -922,9 +931,9 @@ XML
   end
 
   def test_fixture_file_upload_with_binary
-    filename = 'mona_lisa.jpg'
+    filename = "mona_lisa.jpg"
     path = "#{FILES_DIR}/#{filename}"
-    content_type = 'image/jpg'
+    content_type = "image/jpg"
 
     binary_file_upload = fixture_file_upload(path, content_type, :binary)
     assert_equal File.open(path, READ_BINARY).read, binary_file_upload.read
@@ -943,7 +952,7 @@ XML
       params: {
         file: fixture_file_upload(FILES_DIR + "/mona_lisa.jpg", "image/jpg")
       }
-    assert_equal '159528', @response.body
+    assert_equal "159528", @response.body
   end
 
   def test_fixture_file_upload_relative_to_fixture_path
@@ -959,25 +968,25 @@ XML
   end
 
   def test_deprecated_action_dispatch_uploaded_file_upload
-    filename = 'mona_lisa.jpg'
+    filename = "mona_lisa.jpg"
     path = "#{FILES_DIR}/#{filename}"
     assert_deprecated {
       post :test_file_upload, file: Rack::Test::UploadedFile.new(path, "image/jpg", true)
     }
-    assert_equal '159528', @response.body
+    assert_equal "159528", @response.body
   end
 
   def test_action_dispatch_uploaded_file_upload
-    filename = 'mona_lisa.jpg'
+    filename = "mona_lisa.jpg"
     path = "#{FILES_DIR}/#{filename}"
     post :test_file_upload, params: {
       file: Rack::Test::UploadedFile.new(path, "image/jpg", true)
     }
-    assert_equal '159528', @response.body
+    assert_equal "159528", @response.body
   end
 
   def test_test_uploaded_file_exception_when_file_doesnt_exist
-    assert_raise(RuntimeError) { Rack::Test::UploadedFile.new('non_existent_file') }
+    assert_raise(RuntimeError) { Rack::Test::UploadedFile.new("non_existent_file") }
   end
 
   def test_redirect_url_only_cares_about_location_header
@@ -985,12 +994,12 @@ XML
     assert_response :created
 
     # Redirect url doesn't care that it wasn't a :redirect response.
-    assert_equal 'created resource', @response.redirect_url
+    assert_equal "created resource", @response.redirect_url
     assert_equal @response.redirect_url, redirect_to_url
 
     # Must be a :redirect response.
     assert_raise(ActiveSupport::TestCase::Assertion) do
-      assert_redirected_to 'created resource'
+      assert_redirected_to "created resource"
     end
   end
 
@@ -1004,12 +1013,12 @@ XML
     assert_raise(RuntimeError) do
       process :boom,
         method: "GET",
-        params: { q: 'test1' }
+        params: { q: "test1" }
     end
 
     process :test_query_string,
       method: "GET",
-      params: { q: 'test2' }
+      params: { q: "test2" }
 
     assert_equal "q=test2", @response.body
   end
@@ -1019,7 +1028,7 @@ class ResponseDefaultHeadersTest < ActionController::TestCase
   class TestController < ActionController::Base
     def remove_header
       headers.delete params[:header]
-      head :ok, 'C' => '3'
+      head :ok, "C" => "3"
     end
 
     # Render a head response, but don't touch default headers
@@ -1030,7 +1039,7 @@ class ResponseDefaultHeadersTest < ActionController::TestCase
 
   def before_setup
     @original = ActionDispatch::Response.default_headers
-    @defaults = { 'A' => '1', 'B' => '2' }
+    @defaults = { "A" => "1", "B" => "2" }
     ActionDispatch::Response.default_headers = @defaults
     super
   end
@@ -1042,11 +1051,11 @@ class ResponseDefaultHeadersTest < ActionController::TestCase
   def setup
     super
     @controller = TestController.new
-    @request.env['PATH_INFO'] = nil
+    @request.env["PATH_INFO"] = nil
     @routes = ActionDispatch::Routing::RouteSet.new.tap do |r|
       r.draw do
         ActiveSupport::Deprecation.silence do
-          get ':controller(/:action(/:id))'
+          get ":controller(/:action(/:id))"
         end
       end
     end
@@ -1056,18 +1065,18 @@ class ResponseDefaultHeadersTest < ActionController::TestCase
     get :leave_alone
 
     # Response headers start out with the defaults
-    assert_equal @defaults.merge('Content-Type' => 'text/html'), response.headers
+    assert_equal @defaults.merge("Content-Type" => "text/html"), response.headers
   end
 
   test "response deletes a default header" do
-    get :remove_header, params: { header: 'A' }
+    get :remove_header, params: { header: "A" }
     assert_response :ok
 
     # After a request, the response in the test case doesn't have the
     # defaults merged on top again.
-    assert_not_includes response.headers, 'A'
-    assert_includes response.headers, 'B'
-    assert_includes response.headers, 'C'
+    assert_not_includes response.headers, "A"
+    assert_includes response.headers, "B"
+    assert_includes response.headers, "C"
   end
 end
 
@@ -1076,13 +1085,13 @@ module EngineControllerTests
     isolate_namespace EngineControllerTests
 
     routes.draw do
-      get '/' => 'bar#index'
+      get "/" => "bar#index"
     end
   end
 
   class BarController < ActionController::Base
     def index
-      render plain: 'bar'
+      render plain: "bar"
     end
   end
 
@@ -1091,7 +1100,7 @@ module EngineControllerTests
 
     def test_engine_controller_route
       get :index
-      assert_equal @response.body, 'bar'
+      assert_equal @response.body, "bar"
     end
   end
 
@@ -1104,7 +1113,7 @@ module EngineControllerTests
 
     def test_engine_controller_route
       get :index
-      assert_equal @response.body, 'bar'
+      assert_equal @response.body, "bar"
     end
   end
 end
@@ -1145,7 +1154,7 @@ class CrazySymbolNameTest < ActionController::TestCase
 end
 
 class CrazyStringNameTest < ActionController::TestCase
-  tests 'content'
+  tests "content"
 
   def test_set_controller_class_using_string
     assert_equal ContentController, self.class.controller_class
@@ -1158,8 +1167,8 @@ class NamedRoutesControllerTest < ActionController::TestCase
   def test_should_be_able_to_use_named_routes_before_a_request_is_done
     with_routing do |set|
       set.draw { resources :contents }
-      assert_equal 'http://test.host/contents/new', new_content_url
-      assert_equal 'http://test.host/contents/1', content_url(id: 1)
+      assert_equal "http://test.host/contents/new", new_content_url
+      assert_equal "http://test.host/contents/1", content_url(id: 1)
     end
   end
 end
@@ -1175,7 +1184,7 @@ class AnonymousControllerTest < ActionController::TestCase
     @routes = ActionDispatch::Routing::RouteSet.new.tap do |r|
       r.draw do
         ActiveSupport::Deprecation.silence do
-          get ':controller(/:action(/:id))'
+          get ":controller(/:action(/:id))"
         end
       end
     end
@@ -1183,7 +1192,7 @@ class AnonymousControllerTest < ActionController::TestCase
 
   def test_controller_name
     get :index
-    assert_equal 'anonymous', @response.body
+    assert_equal "anonymous", @response.body
   end
 end
 
@@ -1201,19 +1210,19 @@ class RoutingDefaultsTest < ActionController::TestCase
 
     @routes = ActionDispatch::Routing::RouteSet.new.tap do |r|
       r.draw do
-        get '/posts/:id', to: 'anonymous#post', bucket_type: 'post'
-        get '/projects/:id', to: 'anonymous#project', defaults: { bucket_type: 'project' }
+        get "/posts/:id", to: "anonymous#post", bucket_type: "post"
+        get "/projects/:id", to: "anonymous#project", defaults: { bucket_type: "project" }
       end
     end
   end
 
   def test_route_option_can_be_passed_via_process
-    get :post, params: { id: 1, bucket_type: 'post'}
-    assert_equal '/posts/1', @response.body
+    get :post, params: { id: 1, bucket_type: "post" }
+    assert_equal "/posts/1", @response.body
   end
 
   def test_route_default_is_not_required_for_building_request_uri
     get :project, params: { id: 2 }
-    assert_equal '/projects/2', @response.body
+    assert_equal "/projects/2", @response.body
   end
 end