Test coverage on PHPUnit 6.5.5 and PHP 7.2

Question

the problem is that lines with the switch case are not covered, the switch cases themselves are being executed.

Tested on windows

Answer 1

The output is technically correct, as PHP 7.2 is now clever and no longer needs to run the case statements. I wrote about these optimisations at https://derickrethans.nl/php7.2-switch.html

Nevertheless, this is unwanted behaviour, and hence Xdebug has this "bug" fixed with https://github.com/xdebug/xdebug/commit/0690bf83109228a67dfe14a9a312045435b7b774 — this is part of Xdebug's code on GitHub, but has not made it yet into a release. It will make it into Xdebug 2.6.0beta2.