3 files changed, 2 insertions, 6 deletions
diff --git a/actionpack/lib/action_controller/metal/conditional_get.rb b/actionpack/lib/action_controller/metal/conditional_get.rb
index d6911ee2b5..29d1919ec5 100644
--- a/actionpack/lib/action_controller/metal/conditional_get.rb
+++ b/actionpack/lib/action_controller/metal/conditional_get.rb
@@ -1,7 +1,5 @@
 # frozen_string_literal: true
 
-require "active_support/core_ext/hash/keys"
-
 module ActionController
   module ConditionalGet
     extend ActiveSupport::Concern
diff --git a/actionpack/lib/action_controller/renderer.rb b/actionpack/lib/action_controller/renderer.rb
index 2b4559c760..cf8c0159e2 100644
--- a/actionpack/lib/action_controller/renderer.rb
+++ b/actionpack/lib/action_controller/renderer.rb
@@ -1,7 +1,5 @@
 # frozen_string_literal: true
 
-require "active_support/core_ext/hash/keys"
-
 module ActionController
   # ActionController::Renderer allows you to render arbitrary templates
   # without requirement of being in controller actions.
diff --git a/actionpack/lib/action_controller/test_case.rb b/actionpack/lib/action_controller/test_case.rb
index 5d784ceb31..a643484d96 100644
--- a/actionpack/lib/action_controller/test_case.rb
+++ b/actionpack/lib/action_controller/test_case.rb
@@ -457,7 +457,7 @@ module ActionController
       # respectively which will make tests more expressive.
       #
       # Note that the request method is not verified.
-      def process(action, method: "GET", params: {}, session: nil, body: nil, flash: {}, format: nil, xhr: false, as: nil)
+      def process(action, method: "GET", params: nil, session: nil, body: nil, flash: {}, format: nil, xhr: false, as: nil)
         check_required_ivars
 
         http_method = method.to_s.upcase
@@ -485,7 +485,7 @@ module ActionController
           format ||= as
         end
 
-        parameters = params.symbolize_keys
+        parameters = (params || {}).symbolize_keys
 
         if format
           parameters[:format] = format