1 files changed, 10 insertions, 0 deletions
diff --git a/actionpack/test/controller/request/test_request_test.rb b/actionpack/test/controller/request/test_request_test.rb
index fa049fbc9f..da6fa1388b 100644
--- a/actionpack/test/controller/request/test_request_test.rb
+++ b/actionpack/test/controller/request/test_request_test.rb
@@ -11,6 +11,16 @@ class ActionController::TestRequestTest < ActionController::TestCase
     assert_equal nil, ActionController::TestSession::DEFAULT_OPTIONS[:myparam]
   end
 
+  def test_content_length_has_bytes_count_value
+    non_ascii_parameters = { data: { content: "Latin + Кириллица" } }
+    @request.set_header "REQUEST_METHOD", "POST"
+    @request.set_header "CONTENT_TYPE", "application/json"
+    @request.assign_parameters(@routes, "test", "create", non_ascii_parameters,
+                               "/test", [:data, :controller, :action])
+    assert_equal(@request.get_header("CONTENT_LENGTH"),
+                 StringIO.new(non_ascii_parameters.to_json).length.to_s)
+  end
+
   ActionDispatch::Session::AbstractStore::DEFAULT_OPTIONS.each_key do |option|
     test "rack default session options #{option} exists in session options and is default" do
       assert_equal(ActionDispatch::Session::AbstractStore::DEFAULT_OPTIONS[option],