diff options
Diffstat (limited to 'activesupport/test/evented_file_update_checker_test.rb')
-rw-r--r-- | activesupport/test/evented_file_update_checker_test.rb | 44 |
1 files changed, 43 insertions, 1 deletions
diff --git a/activesupport/test/evented_file_update_checker_test.rb b/activesupport/test/evented_file_update_checker_test.rb index bc3f77bd54..2cb2d8167f 100644 --- a/activesupport/test/evented_file_update_checker_test.rb +++ b/activesupport/test/evented_file_update_checker_test.rb @@ -11,7 +11,7 @@ class EventedFileUpdateCheckerTest < ActiveSupport::TestCase end def new_checker(files = [], dirs = {}, &block) - ActiveSupport::EventedFileUpdateChecker.new(files, dirs, &block).tap do + ActiveSupport::EventedFileUpdateChecker.new(files, dirs, &block).tap do |c| wait end end @@ -34,6 +34,48 @@ class EventedFileUpdateCheckerTest < ActiveSupport::TestCase super wait end + + test 'notifies forked processes' do + FileUtils.touch(tmpfiles) + + checker = new_checker(tmpfiles) { } + assert !checker.updated? + + # Pipes used for flow controll across fork. + boot_reader, boot_writer = IO.pipe + touch_reader, touch_writer = IO.pipe + + pid = fork do + assert checker.updated? + + # Clear previous check value. + checker.execute + assert !checker.updated? + + # Fork is booted, ready for file to be touched + # notify parent process. + boot_writer.write("booted") + + # Wait for parent process to signal that file + # has been touched. + IO.select([touch_reader]) + + assert checker.updated? + end + + assert pid + + # Wait for fork to be booted before touching files. + IO.select([boot_reader]) + touch(tmpfiles) + + # Notify fork that files have been touched. + touch_writer.write("touched") + + assert checker.updated? + + Process.wait(pid) + end end class EventedFileUpdateCheckerPathHelperTest < ActiveSupport::TestCase |