[TASK] Add unit test to cover stdWrap_override

Resolves: #76741
Releases: master
Change-Id: I700820454f7972386f6831f379cf03ae697f7041
Reviewed-on: https://review.typo3.org/48643


Tested-by: Bamboo TYPO3com <info@typo3.com>
Reviewed-by: Daniel Goerz <ervaude@gmail.com>
Tested-by: Daniel Goerz <ervaude@gmail.com>
Reviewed-by: Michael Oehlhof <typo3@oehlhof.de>
Tested-by: Michael Oehlhof <typo3@oehlhof.de>
Reviewed-by: Susanne Moog <typo3@susannemoog.de>
Tested-by: Susanne Moog <typo3@susannemoog.de>