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On custom named url managers, the `class` element is required. You will get a `Invalid Configuration` exception without it!

Issue #457 is about placing 'php' within the docker command
and issue #458 is about inverting commands

Moved _bootstrap out of settings - it's use in Settings has been Deprecated

This template does not use PHPUnit directly,
It uses Codeception and it is responsibility of Codeception to manage compatibility with PHPUnit.
Also there is no such restriction in basic app.

As a someone new to Yii, PHP and automated testing,  the purpose of some of these steps was not obvious. Hopefully this will help other new users without adding too much noise for more experienced users.
Co-authored-by: Alexander Makarov <sam@rmcreative.ru>

And use stringContainsString() instead of contains(), because assertContains with string haystacks is deprecated in PHPUnit 8