Show permitted flag in the output of AC::Parameters#inspect

- Fixes #23822.

3 files changed, 34 insertions, 8 deletions

diff --git a/actionpack/CHANGELOG.md b/actionpack/CHANGELOG.md
index 4425a90798..cc336c0a02 100644
--- a/actionpack/CHANGELOG.md
+++ b/actionpack/CHANGELOG.md
@@ -1,4 +1,20 @@
-*   Update session to have indifferent access across multiple requests
+*   Show `permitted` flag in the output of ActionController::Parameters#inspect.
+
+    Before:
+      >> a = ActionController::Parameters.new(foo: 'bar')
+      => <ActionController::Parameters {"foo"=>"bar"}>
+
+    After:
+      >> a = ActionController::Parameters.new(foo: 'bar')
+      => <ActionController::Parameters {"foo"=>"bar"} permitted: false>
+      >> a.permit(:foo)
+      => <ActionController::Parameters {"foo"=>"bar"} permitted: true>
+
+    Fixes #23822.
+
+    *Prathamesh Sonpatki*
+
+*   Update session to have indifferent access across multiple requests.
 
         session[:deep][:hash] = "Magic"
 
@@ -46,13 +62,13 @@
       end
     end
     ```
-    
+
     Passing `as: :json` to integration test request helpers will set the format,
     content type and encode the parameters as JSON.
-    
+
     Then on the response side, `parsed_body` will parse the body according to the
     content type the response has.
-    
+
     Currently JSON is the only supported MIME type. Add your own with
     `ActionDispatch::IntegrationTest.register_encoder`.
 
diff --git a/actionpack/lib/action_controller/metal/strong_parameters.rb b/actionpack/lib/action_controller/metal/strong_parameters.rb
index 25ec3cf5b6..a01110d474 100644
--- a/actionpack/lib/action_controller/metal/strong_parameters.rb
+++ b/actionpack/lib/action_controller/metal/strong_parameters.rb
@@ -579,7 +579,7 @@ module ActionController
     end
 
     def inspect
-      "<#{self.class} #{@parameters}>"
+      "<#{self.class} #{@parameters} permitted: #{@permitted}>"
     end
 
     def method_missing(method_sym, *args, &block)
diff --git a/actionpack/test/controller/parameters/accessors_test.rb b/actionpack/test/controller/parameters/accessors_test.rb
index 4ef5bed30d..cea265f9ab 100644
--- a/actionpack/test/controller/parameters/accessors_test.rb
+++ b/actionpack/test/controller/parameters/accessors_test.rb
@@ -4,6 +4,8 @@ require 'active_support/core_ext/hash/transform_values'
 
 class ParametersAccessorsTest < ActiveSupport::TestCase
   setup do
+    ActionController::Parameters.permit_all_parameters = false
+
     @params = ActionController::Parameters.new(
       person: {
         age: '32',
@@ -176,12 +178,20 @@ class ParametersAccessorsTest < ActiveSupport::TestCase
     assert(@params != false)
   end
 
-  test "inspect shows both class name and parameters" do
+  test "inspect shows both class name, parameters and permitted flag" do
     assert_equal(
       '<ActionController::Parameters {"person"=>{"age"=>"32", '\
-      '"name"=>{"first"=>"David", "last"=>"Heinemeier Hansson"}, ' \
-      '"addresses"=>[{"city"=>"Chicago", "state"=>"Illinois"}]}}>',
+        '"name"=>{"first"=>"David", "last"=>"Heinemeier Hansson"}, ' \
+        '"addresses"=>[{"city"=>"Chicago", "state"=>"Illinois"}]}} permitted: false>',
       @params.inspect
     )
   end
+
+  test "inspect prints updated permitted flag in the output" do
+    assert_match(/permitted: false/, @params.inspect)
+
+    @params.permit!
+
+    assert_match(/permitted: true/, @params.inspect)
+  end
 end