Final classes & testing

[neblabs]

Sorry if this is not the place to post.

All (or most AFAIK) WordPress classes WP_* are declared final.

This is an issue when unit testing since final classes can't be mocked so unit testing a class that relies on a WP_Post instance is hard.

If I may ask, is there a reason why these classes are final? Have there been any talks to make them non-final, at least in the official testing environment that uses phpunit?

[costdev]

Hi @neblabs, welcome to Trac!

Can you provide some detail on what you're trying to do?

• Are you writing tests for Core, or for a plugin/theme?
• What are you testing?
• Why is mocking required for this test?

[johnjamesjacoby]

Duplicate of #24672.