Merge pull request #21703 from ronakjangir47/redirect_error_messages

Added assertion for error messages for redirection to nil and params

actionpack/test/controller/redirect_test.rb

@@ -266,15 +266,17 @@ def test_redirect_to_record
   end
 
   def test_redirect_to_nil
-    assert_raise(ActionController::ActionControllerError) do
+    error = assert_raise(ActionController::ActionControllerError) do
       get :redirect_to_nil
     end
+    assert_equal "Cannot redirect to nil!", error.message
   end
 
   def test_redirect_to_params
-    assert_raise(ActionController::ActionControllerError) do
+    error = assert_raise(ActionController::ActionControllerError) do
       get :redirect_to_params
     end
+    assert_equal "Cannot redirect to a parameter hash!", error.message
   end
 
   def test_redirect_to_with_block