1 files changed, 10 insertions, 6 deletions
diff --git a/actionpack/test/dispatch/request_test.rb b/actionpack/test/dispatch/request_test.rb
index dfedc8ae25..e9896a71f4 100644
--- a/actionpack/test/dispatch/request_test.rb
+++ b/actionpack/test/dispatch/request_test.rb
@@ -977,13 +977,17 @@ class RequestParameters < BaseRequestTest
 
   test "parameters not accessible after rack parse error of invalid UTF8 character" do
     request = stub_request("QUERY_STRING" => "foo%81E=1")
+    assert_raises(ActionController::BadRequest) { request.parameters }
+  end
 
-    2.times do
-      assert_raises(ActionController::BadRequest) do
-        # rack will raise a Rack::Utils::InvalidParameterError when parsing this query string
-        request.parameters
-      end
-    end
+  test "parameters containing an invalid UTF8 character" do
+    request = stub_request("QUERY_STRING" => "foo=%81E")
+    assert_raises(ActionController::BadRequest) { request.parameters }
+  end
+
+  test "parameters containing a deeply nested invalid UTF8 character" do
+    request = stub_request("QUERY_STRING" => "foo[bar]=%81E")
+    assert_raises(ActionController::BadRequest) { request.parameters }
   end
 
   test "parameters not accessible after rack parse error 1" do