1 files changed, 45 insertions, 1 deletions
diff --git a/railties/test/application/assets_test.rb b/railties/test/application/assets_test.rb
index 98a702f134..e1eee71a9e 100644
--- a/railties/test/application/assets_test.rb
+++ b/railties/test/application/assets_test.rb
@@ -1,8 +1,9 @@
 require 'isolation/abstract_unit'
+require 'active_support/core_ext/kernel/reporting'
 require 'rack/test'
 
 module ApplicationTests
-  class RoutingTest < Test::Unit::TestCase
+  class AssetsTest < Test::Unit::TestCase
     include ActiveSupport::Testing::Isolation
     include Rack::Test::Methods
 
@@ -11,6 +12,10 @@ module ApplicationTests
       boot_rails
     end
 
+    def teardown
+      teardown_app
+    end
+
     def app
       @app ||= Rails.application
     end
@@ -30,6 +35,45 @@ module ApplicationTests
       assert_match "alert()", last_response.body
     end
 
+    test "assets do not require compressors until it is used" do
+      app_file "app/assets/javascripts/demo.js.erb", "<%= :alert %>();"
+      ENV["RAILS_ENV"] = "production"
+      require "#{app_path}/config/environment"
+
+      assert !defined?(Uglifier)
+      get "/assets/demo.js"
+      assert_match "alert()", last_response.body
+      assert defined?(Uglifier)
+    end
+
+    test "assets are compiled properly" do
+      app_file "app/assets/javascripts/application.js", "alert();"
+      app_file "app/assets/javascripts/foo/application.js", "alert();"
+
+      capture(:stdout) do
+        Dir.chdir(app_path){ `bundle exec rake assets:precompile` }
+      end
+      files = Dir["#{app_path}/public/assets/application-*.js"]
+      files << Dir["#{app_path}/public/assets/foo/application-*.js"].first
+      files.each do |file|
+        assert_not_nil file, "Expected application.js asset to be generated, but none found"
+        assert_equal "alert();\n", File.read(file)
+      end
+    end
+
+    test "assets are cleaned up properly" do
+      app_file "public/assets/application.js", "alert();"
+      app_file "public/assets/application.css", "a { color: green; }"
+      app_file "public/assets/subdir/broken.png", "not really an image file"
+
+      capture(:stdout) do
+        Dir.chdir(app_path){ `bundle exec rake assets:clean` }
+      end
+
+      files = Dir["#{app_path}/public/assets/**/*"]
+      assert_equal 0, files.length, "Expected no assets, but found #{files.join(', ')}"
+    end
+
     test "does not stream session cookies back" do
       app_file "app/assets/javascripts/demo.js.erb", "<%= :alert %>();"