2 files changed, 6 insertions, 1 deletions
diff --git a/actionpack/test/controller/parameters/accessors_test.rb b/actionpack/test/controller/parameters/accessors_test.rb
index 7725c25e22..87407a4272 100644
--- a/actionpack/test/controller/parameters/accessors_test.rb
+++ b/actionpack/test/controller/parameters/accessors_test.rb
@@ -35,6 +35,11 @@ class ParametersAccessorsTest < ActiveSupport::TestCase
     assert @params.as_json.key? "person"
   end
 
+  test "to_s returns the string representation of the parameters hash" do
+    assert_equal '{"person"=>{"age"=>"32", "name"=>{"first"=>"David", "last"=>"Heinemeier Hansson"}, ' \
+      '"addresses"=>[{"city"=>"Chicago", "state"=>"Illinois"}]}}', @params.to_s
+  end
+
   test "each carries permitted status" do
     @params.permit!
     @params.each { |key, value| assert(value.permitted?) if key == "person" }
diff --git a/actionpack/test/controller/parameters/mutators_test.rb b/actionpack/test/controller/parameters/mutators_test.rb
index 2c36f488c6..3fe7340782 100644
--- a/actionpack/test/controller/parameters/mutators_test.rb
+++ b/actionpack/test/controller/parameters/mutators_test.rb
@@ -35,7 +35,7 @@ class ParametersMutatorsTest < ActiveSupport::TestCase
   end
 
   test "delete returns nil when the key is not present" do
-    assert_equal nil, @params[:person].delete(:first_name)
+    assert_nil @params[:person].delete(:first_name)
   end
 
   test "delete returns the value of the given block when the key is not present" do