[TASK] Add unit test to cover stdWrap_typolink

Releases: master
Resolves: #76833
Change-Id: I0a6203f67a847a07af5834697f24783459a09e2c
Reviewed-on: https://review.typo3.org/48748


Tested-by: Bamboo TYPO3com <info@typo3.com>
Reviewed-by: Joerg Boesche <typo3@joergboesche.de>
Tested-by: Joerg Boesche <typo3@joergboesche.de>
Reviewed-by: Susanne Moog <typo3@susannemoog.de>
Tested-by: Susanne Moog <typo3@susannemoog.de>