Cakephp: PHP Fatal error: Class 'PHPUnit\Framework\BaseTestListener' not found

[dereuromark]

This is a (multiple allowed):

• [x] bug

• [x] enhancement

• CakePHP Version: latest master

What you did

plugin development, travis is now red for newer PHP versions

PHP Fatal error:  Class 'PHPUnit\Framework\BaseTestListener' not found in 
/home/travis/build/dereuromark/cakephp-ide-helper/vendor/cakephp/cakephp/src/TestSuite/Fixture/FixtureInjector.php ...

See e.g. https://travis-ci.org/dereuromark/cakephp-ide-helper/jobs/343435569

This can happen if the constraint isnt locked down to PHPUnit 5|6 but also allows for 7 to be pulled.
Mainly because cakephp/cakephp only has a require-dev dependency here to PHPUnit, of course.

What you expected to happen

Can we class alias or fix it somehow - as we did for some classes in the past?
So PHPUnit 7 is also supported?

[markstory]

This can happen if the constraint isnt locked down to PHPUnit 5|6 but also allows for 7 to be pulled.

So don't do that. PHPUnit 7 has a number of backwards incompatible changes that make it hard to be compatible with both PHPUnit 6 and PHPUnit 7.

[dereuromark]

OK, so we dont plan to support it anytime soon using some shims or alike? Then we can disregard.

[markstory]

OK, so we dont plan to support it anytime soon using some shims or alike? Then we can disregard.

I think in 4.0 we can move to PHPUnit 7+.