Add UJS tests

Author: guilleiguaran

actionview/RUNNING_UJS_TESTS.rdoc

@@ -0,0 +1,7 @@
+== Running UJS tests
+
+Ensure that you can build the project and run tests.
+Run rake ujs:server first, and then run the web tests by
+visiting http://localhost:4567 in your browser.
+
+rake test:server

actionview/Rakefile

@@ -46,6 +46,13 @@ namespace :test do
   end
 end
 
+namespace :ujs do
+  desc "Starts the test server"
+  task :server do
+    system 'bundle exec rackup test/ujs/config.ru -p 4567 -s puma'
+  end
+end
+
 task :lines do
   load File.expand_path("..", File.dirname(__FILE__)) + "/tools/line_statistics"
   files = FileList["lib/**/*.rb"]

actionview/test/ujs/.gitignore

@@ -0,0 +1 @@
+/log

actionview/test/ujs/config.ru

@@ -0,0 +1,3 @@
+$LOAD_PATH.unshift File.expand_path('..', __FILE__)
+require 'server'
+run UJS::Server

actionview/test/ujs/public/test/.eslintrc.yml

@@ -0,0 +1,21 @@
+env:
+  browser: true
+extends: eslint:recommended
+rules:
+  no-undef: off
+  no-unused-vars: off
+  indent: off
+  linebreak-style: ['error', 'unix']
+  quotes: ['error', 'single']
+  semi: ['error', 'never']
+  no-shadow: ['error'] # Prevent potential errors
+  no-console: 'off'
+  # styles
+  space-before-function-paren: ['error', 'never']
+  space-before-blocks: 'error'
+  brace-style: ['error', '1tbs', { allowSingleLine: true }]
+  key-spacing: 'error'
+  array-bracket-spacing: 'error'
+  comma-spacing: 'error'
+  comma-dangle: 'off'
+  eol-last: 'error'