Fatal error: Call to a member function getOption() on a non-object in /www/dev.translatewiki.net/docroot/w/extensions/BetaFeatures/BetaFeaturesHooks.php on line 123

Unfortunately it backtraces are useless when running phpunit:
[06-Feb-2015 08:35:51 UTC] PHP Fatal error: Call to a member function getOption() on a non-object in /www/dev.translatewiki.net/docroot/w/extensions/BetaFeatures/BetaFeaturesHooks.php on line 123
2015-02-06 08:35:51 translatewiki.net dev_translatewiki_net-unittest_: [4fc389b2] [no req] ErrorException from line 257 of /www/dev.translatewiki.net/docroot/w/includes/exception/MWExceptionHandler.php: Fatal Error: Call to a member function getOption() on a non-object
#0 [internal function]: MWExceptionHandler::handleFatalError()
#1 {main}