[BUGFIX] Fix warnings
[BUGFIX] Fix warnings

- Warning about an undefined variable in the unit tests
- PHPCS warnings about opening braces not being on the next line

Seldaek/emogrifier,Synchro/emogrifier,jjriv/emogrifier,sanderkruger/emogrifier,ricardofiorani/emogrifier,OzzyCzech/emogrifier,MyIntervals/emogrifier,ernsto/emogrifier