Merge pull request #33093 from rails/use-rack-to-dump-query

Use Rack to generate query information under test

2 files changed, 11 insertions, 3 deletions

diff --git a/actionpack/lib/action_controller/test_case.rb b/actionpack/lib/action_controller/test_case.rb
index 5d784ceb31..33b0bcbefe 100644
--- a/actionpack/lib/action_controller/test_case.rb
+++ b/actionpack/lib/action_controller/test_case.rb
@@ -109,7 +109,7 @@ module ActionController
           when :xml
             data = non_path_parameters.to_xml
           when :url_encoded_form
-            data = non_path_parameters.to_query
+            data = Rack::Utils.build_nested_query(non_path_parameters)
           else
             @custom_param_parsers[content_mime_type.symbol] = ->(_) { non_path_parameters }
             data = non_path_parameters.to_query
diff --git a/actionpack/test/controller/test_case_test.rb b/actionpack/test/controller/test_case_test.rb
index 734da3de9c..d4620d085a 100644
--- a/actionpack/test/controller/test_case_test.rb
+++ b/actionpack/test/controller/test_case_test.rb
@@ -220,7 +220,15 @@ XML
     params = Hash[:page, { name: "page name" }, "some key", 123]
     post :render_raw_post, params: params.dup
 
-    assert_equal params.to_query, @response.body
+    assert_equal Rack::Utils.build_nested_query(params), @response.body
+  end
+
+  def test_params_round_trip
+    params = {"foo"=>{"contents"=>[{"name"=>"gorby", "id"=>"123"}, {"name"=>"puff", "d"=>"true"}]}}
+    post :test_params, params: params.dup
+
+    controller_info = { "controller" => "test_case_test/test", "action" => "test_params" }
+    assert_equal params.merge(controller_info), JSON.parse(@response.body)
   end
 
   def test_body_stream
@@ -228,7 +236,7 @@ XML
 
     post :render_body, params: params.dup
 
-    assert_equal params.to_query, @response.body
+    assert_equal Rack::Utils.build_nested_query(params), @response.body
   end
 
   def test_document_body_and_params_with_post