**Current Version**
MinervaNeue: master(57a959c483)
**Situation**
While I run phpunit test, show some Warning messages:
```
PHP Warning: A non-numeric value encountered in /mediawiki/skins/MinervaNeue/tests/phpunit/skins/SkinMinervaTest.php on line 335
PHP Warning: A non-numeric value encountered in /mediawiki/skins/MinervaNeue/tests/phpunit/skins/SkinMinervaTest.php on line 335
PHP Warning: A non-numeric value encountered in /mediawiki/skins/MinervaNeue/tests/phpunit/skins/SkinMinervaTest.php on line 336
PHP Warning: A non-numeric value encountered in /mediawiki/skins/MinervaNeue/tests/phpunit/skins/SkinMinervaTest.php on line 351
PHP Warning: A non-numeric value encountered in /mediawiki/skins/MinervaNeue/tests/phpunit/skins/SkinMinervaTest.php on line 351
PHP Warning: A non-numeric value encountered in /mediawiki/skins/MinervaNeue/tests/phpunit/skins/SkinMinervaTest.php on line 352
PHP Warning: A non-numeric value encountered in /mediawiki/w/skins/MinervaNeue/tests/phpunit/skins/SkinMinervaTest.php on line 367
PHP Warning: A non-numeric value encountered in /mediawiki/w/skins/MinervaNeue/tests/phpunit/skins/SkinMinervaTest.php on line 367
PHP Warning: A non-numeric value encountered in /mediawiki/w/skins/MinervaNeue/tests/phpunit/skins/SkinMinervaTest.php on line 368
PHP Warning: A non-numeric value encountered in /mediawiki/w/skins/MinervaNeue/tests/phpunit/skins/SkinMinervaTest.php on line 383
PHP Warning: A non-numeric value encountered in /mediawiki/w/skins/MinervaNeue/tests/phpunit/skins/SkinMinervaTest.php on line 383
PHP Warning: A non-numeric value encountered in /mediawiki/w/skins/MinervaNeue/tests/phpunit/skins/SkinMinervaTest.php on line 384
PHP Warning: A non-numeric value encountered in /mediawiki/skins/MinervaNeue/tests/phpunit/skins/SkinMinervaTest.php on line 399
PHP Warning: A non-numeric value encountered in /mediawiki/skins/MinervaNeue/tests/phpunit/skins/SkinMinervaTest.php on line 399
```