Because @coversDefaultClass doesn't indicate any coverage (it's
just an alias to avoid having to write the class name in @covers),
this commit fixes all the files that were using that annotation
and missing any @covers.
Basically, replacing one by the other and done.
The current ->setMethods() has been silently (won't emit any
warning) in PHPUnit 9. And will stop working (current plans)
in PHPUnit 10.
Basically the now deprecated method has been split into:
- onlyMethods(): To point to existing methods in the mocked artifact.
- addMethods(): To point to non existing (yet) methods in the mocked
artifact.
In practice that means that all our current setMethods() calls can be
converted to onlyMethods() (existing) and done. The addMethods() is
mostly useful on development phases, not final testing.
Finally note that <null> isn't accepted anymore as parameter to
double all the methods. Instead empty array [] must be used.
Link: https://github.com/sebastianbergmann/phpunit/issues/3770
