1 files changed, 5 insertions, 8 deletions
diff --git a/railties/test/application/middleware/sendfile_test.rb b/railties/test/application/middleware/sendfile_test.rb
index be86f1a3b8..9def3a0ce7 100644
--- a/railties/test/application/middleware/sendfile_test.rb
+++ b/railties/test/application/middleware/sendfile_test.rb
@@ -1,4 +1,6 @@
-require 'isolation/abstract_unit'
+# frozen_string_literal: true
+
+require "isolation/abstract_unit"
 
 module ApplicationTests
   class SendfileTest < ActiveSupport::TestCase
@@ -6,7 +8,6 @@ module ApplicationTests
 
     def setup
       build_app
-      boot_rails
       FileUtils.rm_rf "#{app_path}/config/environments"
     end
 
@@ -14,10 +15,6 @@ module ApplicationTests
       teardown_app
     end
 
-    def app
-      @app ||= Rails.application
-    end
-
     define_method :simple_controller do
       class ::OmgController < ActionController::Base
         def index
@@ -49,7 +46,7 @@ module ApplicationTests
 
     test "config.action_dispatch.x_sendfile_header is sent to Rack::Sendfile" do
       make_basic_app do |app|
-        app.config.action_dispatch.x_sendfile_header = 'X-Lighttpd-Send-File'
+        app.config.action_dispatch.x_sendfile_header = "X-Lighttpd-Send-File"
       end
 
       simple_controller
@@ -60,7 +57,7 @@ module ApplicationTests
 
     test "files handled by ActionDispatch::Static are handled by Rack::Sendfile" do
       make_basic_app do |app|
-        app.config.action_dispatch.x_sendfile_header = 'X-Sendfile'
+        app.config.action_dispatch.x_sendfile_header = "X-Sendfile"
         app.config.public_file_server.enabled = true
         app.paths["public"] = File.join(rails_root, "public")
       end