Sprockets uses debug. not self. now

railties/test/application/asset_debugging_test.rb

@@ -54,7 +54,7 @@ class ::PostsController < ActionController::Base ; end
       assert_no_match(/<script src="\/assets\/xmlhr-([0-z]+)\.js"><\/script>/, last_response.body)
     end
 
-    test "assets aren't concatenated when compile is true is on and debug_assets params is true" do
+    test "assets are debug when compile is true is on and debug_assets params is true" do
       add_to_env_config "production", "config.assets.compile = true"
 
       # Load app env
@@ -63,8 +63,7 @@ class ::PostsController < ActionController::Base ; end
       class ::PostsController < ActionController::Base ; end
 
       get "/posts?debug_assets=true"
-      assert_match(/<script src="\/assets\/application(\.self)?-([0-z]+)\.js\?body=1"><\/script>/, last_response.body)
-      assert_match(/<script src="\/assets\/xmlhr(\.self)?-([0-z]+)\.js\?body=1"><\/script>/, last_response.body)
+      assert_match(/<script src="\/assets\/application(\.debug|\.self)?-([0-z]+)\.js(\?body=1)?"><\/script>/, last_response.body)
     end
 
     test "public path and tag methods are not over-written by the asset pipeline" do

railties/test/application/assets_test.rb

@@ -489,9 +489,9 @@ class ::PostsController < ActionController::Base ; end
       class ::PostsController < ActionController::Base; end
 
       get "/posts", {}, { "HTTPS" => "off" }
-      assert_match('src="http://example.com/assets/application.self.js', last_response.body)
+      assert_match('src="http://example.com/assets/application.debug.js', last_response.body)
       get "/posts", {}, { "HTTPS" => "on" }
-      assert_match('src="https://example.com/assets/application.self.js', last_response.body)
+      assert_match('src="https://example.com/assets/application.debug.js', last_response.body)
     end
 
     test "asset urls should be protocol-relative if no request is in scope" do