Fix loading for visual app

Author: tancnle

config.ru

@@ -1,8 +1,5 @@
 # frozen_string_literal: true
 
-require 'pathname'
-
-here = Pathname.new(__FILE__).dirname
-load here.join('spec/visual/app.rb')
+require_relative 'spec/visual/app'
 
 run VisualTestApp

spec/visual/app.rb

@@ -8,19 +8,15 @@
 # stdlib
 require 'pathname'
 
+require 'rouge'
+
 class VisualTestApp < Sinatra::Application
   BASE = Pathname.new(__FILE__).dirname
   SAMPLES = BASE.join('samples')
   ROOT = BASE.parent.parent
 
-  ROUGE_LIB = ROOT.join('lib/rouge.rb')
-
   DEMOS = ROOT.join('lib/rouge/demos')
 
-  def reload_source!
-    Rouge.reload!
-  end
-
   def query_string
     env['rack.request.query_string']
   end
@@ -66,8 +62,6 @@ def as_boolean(value)
   end
 
   before do
-    reload_source!
-
     Rouge::Lexer.enable_debug!
     Rouge::Formatter.enable_escape! if params[:escape]
 
@@ -92,7 +86,6 @@ def as_boolean(value)
     erb template
   end
 
-
   get '/' do
     @samples = DEMOS.entries.sort.reject { |s| s.basename.to_s =~ /^\.|~$/ }
     @samples.map!(&Rouge::Lexer.method(:find))