failure to parse params should trigger a 400 Bad Request

1 files changed, 6 insertions, 0 deletions

diff --git a/actionpack/test/dispatch/show_exceptions_test.rb b/actionpack/test/dispatch/show_exceptions_test.rb
index 45f8fc11b3..900f45ee5e 100644
--- a/actionpack/test/dispatch/show_exceptions_test.rb
+++ b/actionpack/test/dispatch/show_exceptions_test.rb
@@ -8,6 +8,8 @@ class ShowExceptionsTest < ActionDispatch::IntegrationTest
       case req.path
       when "/not_found"
         raise AbstractController::ActionNotFound
+      when "/bad_params"
+        raise ActionDispatch::ParamsParser::ParseError.new("", StandardError.new)
       when "/method_not_allowed"
         raise ActionController::MethodNotAllowed
       when "/not_found_original_exception"
@@ -33,6 +35,10 @@ class ShowExceptionsTest < ActionDispatch::IntegrationTest
     get "/", {}, {'action_dispatch.show_exceptions' => true}
     assert_response 500
     assert_equal "500 error fixture\n", body
+    
+    get "/bad_params", {}, {'action_dispatch.show_exceptions' => true}
+    assert_response 400
+    assert_equal "400 error fixture\n", body
 
     get "/not_found", {}, {'action_dispatch.show_exceptions' => true}
     assert_response 404