TYPO3 Testing Skill

A Report Becomes a Failing Test Before It Becomes a Fix

A bug report is a test that does not exist yet. Write it from the report's own input and expected output, run it, and see it fail for the reason the report gives. A test written after the fix proves only that the code does what it does.

Output produced through a template is not covered by a unit suite. The unit suite loads PHP classes and never renders a Fluid template, so an edit to a template leaves the suite green while the page is broken. Prove such a change by rendering it: a functional test that calls the rendering path and asserts the rendered string.