Do not include application.js if it doesn't exists

Rails were including 'application.js' to the pack when using
`javascript_include_tag :all` even there's no application.js in the
public directory.

1 files changed, 9 insertions, 0 deletions

diff --git a/actionpack/test/template/asset_tag_helper_test.rb b/actionpack/test/template/asset_tag_helper_test.rb
index bcc55189b9..6a44197525 100644
--- a/actionpack/test/template/asset_tag_helper_test.rb
+++ b/actionpack/test/template/asset_tag_helper_test.rb
@@ -417,6 +417,15 @@ class AssetTagHelperTest < ActionView::TestCase
     assert_raise(ArgumentError) { javascript_include_tag(:defaults) }
   end
 
+  def test_all_javascript_expansion_not_include_application_js_if_not_exists
+    FileUtils.mv(File.join(ActionView::Helpers::AssetTagHelper::JAVASCRIPTS_DIR, 'application.js'),
+      File.join(ActionView::Helpers::AssetTagHelper::JAVASCRIPTS_DIR, 'application.bak'))
+    assert_no_match(/application\.js/, javascript_include_tag(:all))
+  ensure
+    FileUtils.mv(File.join(ActionView::Helpers::AssetTagHelper::JAVASCRIPTS_DIR, 'application.bak'),
+      File.join(ActionView::Helpers::AssetTagHelper::JAVASCRIPTS_DIR, 'application.js'))
+  end
+
   def test_stylesheet_path
     ENV["RAILS_ASSET_ID"] = ""
     StylePathToTag.each { |method, tag| assert_dom_equal(tag, eval(method)) }