diff --git a/actionpack/test/dispatch/request/url_encoded_params_parsing_test.rb b/actionpack/test/dispatch/request/url_encoded_params_parsing_test.rb
index 04a0fb6..7c864ab 100644
--- a/actionpack/test/dispatch/request/url_encoded_params_parsing_test.rb
+++ b/actionpack/test/dispatch/request/url_encoded_params_parsing_test.rb
@@ -24,6 +24,7 @@ class UrlEncodedParamsParsingTest < ActionDispatch::IntegrationTest
   end
 
   test "parses nested hash" do
+    require 'ruby-debug'
     query = [
       "note[viewers][viewer][][type]=User",
       "note[viewers][viewer][][id]=1",
@@ -35,6 +36,40 @@ class UrlEncodedParamsParsingTest < ActionDispatch::IntegrationTest
     assert_parses(expected, query)
   end
 
+  test "parses nested hash in case first level element follows second level element" do
+    query = ["first[][second][e]=value1",
+      "first[][a]=111",
+      "first[][second][e]=value2",
+      "first[][a]=222",
+      "first[][second][e]=value3",
+      "first[][a]=333"
+    ].join("&")
+
+    expected = {"first"=>
+      [{"a"=>"111", "second"=>{"e"=>"value1"}},
+       {"a"=>"222", "second"=>{"e"=>"value2"}},
+       {"a"=>"333", "second"=>{"e"=>"value3"}}]}
+
+    assert_parses(expected, query)
+  end
+
+  test "parses nested hash in case first level element preceeds second level element" do
+    query = ["first[][a]=111",
+      "first[][second][e]=value1",
+      "first[][a]=222",
+      "first[][second][e]=value2",
+      "first[][a]=333",
+      "first[][second][e]=value3"
+    ].join("&")
+
+    expected = {"first"=>
+      [{"a"=>"111", "second"=>{"e"=>"value1"}},
+       {"a"=>"222", "second"=>{"e"=>"value2"}},
+       {"a"=>"333", "second"=>{"e"=>"value3"}}]}
+
+    assert_parses(expected, query)
+  end
+
   test "parses more complex nesting" do
     query = [
       "customers[boston][first][name]=David",