Exit code with no tests changed in bugfix release 8.5.7 (probably also 9.x)

[dominikzogg]

Q	A
PHPUnit version	8.5.7
PHP version	7.2.15, 7.3.19 , 7.4.7
Installation Method	Composer

Summary

Since PHPUnit 8.5.7 its a problem it there are no tests and the exit code is 1. Before that the return value was 0.
All my newer libraries have a testsuite for unit tests and one for integration test. Not every library has integration tests. Until 8.5.6 this wasn't an issue.

Current behavior

No tests => exit code: 1

How to reproduce

setup any project with a testsuite without tests

https://travis-ci.org/github/chubbyphp/chubbyphp-container/builds/700689350

https://travis-ci.org/github/chubbyphp/chubbyphp-container/jobs/700689357
https://travis-ci.org/github/chubbyphp/chubbyphp-container/jobs/700689360
https://travis-ci.org/github/chubbyphp/chubbyphp-container/jobs/700689363

Expected behavior

No tests => exit code: 0

[sebastianbergmann]

It was a bug that PHPUnit exited with 0 when it should have exited with 1.

[sebastianbergmann]

See #4299 (comment)

[dominikzogg]

@sebastianbergmann thanks

[dominikzogg]

@sebastianbergmann thank you