Test with Rails master

Also test that Autoprefixer is applied

Author: glebm

.travis.yml

@@ -4,6 +4,7 @@ rvm:
   - 2.2
 gemfile:
   - test/gemfiles/rails_4_2.gemfile
+  - test/gemfiles/rails_head.gemfile
 cache: bundler
 bundler_args: --path ../../vendor/bundle --without debug
 notifications:

Rakefile

@@ -8,16 +8,49 @@ Rake::TestTask.new do |t|
   t.verbose = true
 end
 
+desc 'Test all Gemfiles from test/*.gemfile'
+task :test_all_gemfiles do
+  require 'term/ansicolor'
+  require 'pty'
+  require 'shellwords'
+  cmd      = 'bundle install --quiet && bundle exec rake --trace'
+  statuses = Dir.glob('./test/gemfiles/*{[!.lock]}').map do |gemfile|
+    env = {'BUNDLE_GEMFILE' => gemfile}
+    cmd_with_env = "  (#{env.map { |k, v| "export #{k}=#{Shellwords.escape v}" } * ' '}; #{cmd})"
+    $stderr.puts Term::ANSIColor.cyan("Testing\n#{cmd_with_env}")
+    PTY.spawn(env, cmd) do |r, _w, pid|
+      begin
+        r.each_line { |l| puts l }
+      rescue Errno::EIO
+        # Errno:EIO error means that the process has finished giving output.
+      ensure
+        ::Process.wait pid
+      end
+    end
+    [$? && $?.exitstatus == 0, cmd_with_env]
+  end
+  failed_cmds = statuses.reject(&:first).map { |(_status, cmd_with_env)| cmd_with_env }
+  if failed_cmds.empty?
+    $stderr.puts Term::ANSIColor.green('Tests pass with all gemfiles')
+  else
+    $stderr.puts Term::ANSIColor.red("Failing (#{failed_cmds.size} / #{statuses.size})\n#{failed_cmds * "\n"}")
+    exit 1
+  end
+end
+
 desc 'Dumps output to a CSS file for testing'
 task :debug do
   require 'sass'
   require './lib/bootstrap'
   require 'term/ansicolor'
+  require 'autoprefixer-rails'
   path = Bootstrap.stylesheets_path
   %w(_bootstrap _bootstrap-flex _bootstrap-reboot _bootstrap-grid).each do |file|
     engine = Sass::Engine.for_file("#{path}/#{file}.scss", syntax: :scss, load_paths: [path])
     out = File.join('tmp', "#{file[1..-1]}.css")
-    File.write(out, engine.render)
+    css = engine.render
+    css = AutoprefixerRails.process(css)
+    File.write(out, css)
     $stderr.puts Term::ANSIColor.green "Compiled #{out}"
   end
 end

bootstrap.gemspec

@@ -12,12 +12,13 @@ Gem::Specification.new do |s|
   s.license  = 'MIT'
 
   s.add_runtime_dependency 'sass', '>= 3.4.18'
-  s.add_runtime_dependency 'autoprefixer-rails', '>= 5.2.1.3'
+  s.add_runtime_dependency 'autoprefixer-rails', '>= 6.0.3'
 
   # Testing dependencies
   s.add_development_dependency 'minitest', '~> 5.8.0'
   s.add_development_dependency 'minitest-reporters', '~> 1.0.5'
   s.add_development_dependency 'compass', '~> 1.0.3'
+  s.add_development_dependency 'term-ansicolor'
   # Integration testing
   s.add_development_dependency 'capybara'
   s.add_development_dependency 'poltergeist'

test/dummy_rails/config/application.rb

@@ -22,6 +22,7 @@
 module Dummy
   class Application < Rails::Application
     config.assets.enabled = true if config.assets.respond_to?(:enabled)
+    config.assets.precompile += %w( application.css application.js )
     config.to_prepare do
       if ENV['VERBOSE']
         STDERR.puts "Loaded Rails #{Rails::VERSION::STRING}, Sprockets #{Sprockets::VERSION}",

test/gemfiles/rails_head.gemfile

@@ -0,0 +1,19 @@
+source "https://rubygems.org"
+
+gem 'actionpack', github: 'rails/rails'
+gem 'activesupport', github: 'rails/rails'
+
+# Required git dependencies as per https://github.com/rails/rails/blob/51211a94bd7a34d80f2412a7f94fefe7366647a5/Gemfile:
+gem 'rack', github: 'rack/rack'
+gem 'sprockets', github: 'rails/sprockets'
+gem 'sprockets-rails', github: 'rails/sprockets-rails'
+gem 'sass-rails', github: 'rails/sass-rails', branch: 'master'
+
+gem 'autoprefixer-rails', github: 'glebm/autoprefixer-rails', branch: 'rails5-compat'
+
+source 'https://rails-assets.org' do
+  gem 'rails-assets-tether', '>= 1.1.0'
+end
+
+gemspec path: '../../'
+

test/gemfiles/sass_3_3.gemfile

@@ -0,0 +1,19 @@
+require 'test_helper_rails'
+
+class RailsTest < ActionDispatch::IntegrationTest
+  include ::DummyRailsIntegration
+
+  def test_visit_root
+    visit root_path
+    # ^ will raise on JS errors
+
+    assert_equal 200, page.status_code
+
+    screenshot!
+  end
+
+  def test_autoprefixer
+    get ActionController::Base.helpers.stylesheet_path('application.css')
+    assert_match /-webkit-(?:transition|transform)/, response.body
+  end
+end

test/pages_test.rb

@@ -14,4 +14,14 @@ def silence_stream_if(cond, stream, &run)
       run.call
     end
   end
+
+  def silence_stream(stream)
+    old_stream = stream.dup
+    stream.reopen(File::NULL)
+    stream.sync = true
+    yield
+  ensure
+    stream.reopen(old_stream)
+    old_stream.close
+  end unless method_defined?(:silence_stream)
 end