CI phpunit is broken for PHP 7.2 and newer

[frank9999]

Run vendor/bin/phpunit
PHPUnit 4.8.36 by Sebastian Bergmann and contributors.

............................................................... 63 / 208 ( 30%)
..........................................................EEEEE 126 / 208 ( 60%)
EEE............................................................ 189 / 208 ( 90%)
...................

Time: 108 ms, Memory: 8.00MB

There were 8 errors:

1. Ratchet\Session\SessionProviderTest::testToClassCase with data set #0 ('php', 'Php')
   ini_set(): Headers already sent. You cannot change the session module's ini settings at this time

/home/runner/work/Ratchet/Ratchet/src/Ratchet/Session/SessionProvider.php:53
/home/runner/work/Ratchet/Ratchet/tests/unit/Session/SessionComponentTest.php:19

2. Ratchet\Session\SessionProviderTest::testToClassCase with data set Back up #1 ('php_binary', 'PhpBinary')
   ini_set(): Headers already sent. You cannot change the session module's ini settings at this time

/home/runner/work/Ratchet/Ratchet/src/Ratchet/Session/SessionProvider.php:53
/home/runner/work/Ratchet/Ratchet/tests/unit/Session/SessionComponentTest.php:19

3. Ratchet\Session\SessionProviderTest::testConnectionValueFromPdo
   ini_set(): Headers already sent. You cannot change the session module's ini settings at this time

/home/runner/work/Ratchet/Ratchet/src/Ratchet/Session/SessionProvider.php:53
/home/runner/work/Ratchet/Ratchet/tests/unit/Session/SessionComponentTest.php:19

4. Ratchet\Session\SessionProviderTest::testOnMessageDecorator
   ini_set(): Headers already sent. You cannot change the session module's ini settings at this time

/home/runner/work/Ratchet/Ratchet/src/Ratchet/Session/SessionProvider.php:53
/home/runner/work/Ratchet/Ratchet/tests/unit/Session/SessionComponentTest.php:19

5. Ratchet\Session\SessionProviderTest::testRejectInvalidSeralizers
   ini_set(): Headers already sent. You cannot change the session module's ini settings at this time

/home/runner/work/Ratchet/Ratchet/src/Ratchet/Session/SessionProvider.php:53
/home/runner/work/Ratchet/Ratchet/tests/unit/Session/SessionComponentTest.php:19

6. Ratchet\Session\SessionProviderTest::testOpen
   ini_set(): Headers already sent. You cannot change the session module's ini settings at this time

/home/runner/work/Ratchet/Ratchet/src/Ratchet/Session/SessionProvider.php:53
/home/runner/work/Ratchet/Ratchet/tests/unit/Session/SessionComponentTest.php:19

7. Ratchet\Session\SessionProviderTest::testOnClose
   ini_set(): Headers already sent. You cannot change the session module's ini settings at this time

/home/runner/work/Ratchet/Ratchet/src/Ratchet/Session/SessionProvider.php:53
/home/runner/work/Ratchet/Ratchet/tests/unit/Session/SessionComponentTest.php:19

8. Ratchet\Session\SessionProviderTest::testOnError
   ini_set(): Headers already sent. You cannot change the session module's ini settings at this time

/home/runner/work/Ratchet/Ratchet/src/Ratchet/Session/SessionProvider.php:53
/home/runner/work/Ratchet/Ratchet/tests/unit/Session/SessionComponentTest.php:19

FAILURES!
Tests: 208, Assertions: 246, Errors: 8.
Error: Process completed with exit code 2.

[PaolaRuby]

almost without support

[cboden]

almost without support

@PaolaRuby Very helpful comment, thank you for your contribution.

---

@frank9999 I'm not sure what the problem is. I've marked the Session tests skipped for now. I haven't looked into it yet, but I don't know why PHP is concerned about setting INI values when in the CLI...there's no CGI, no concept of HTTP, I don't know why PHP think headers are being sent.

Would love some help with this.