barZ example

class BarCovTest extends TestCase
{
    public function testBarCov()
    {
        if (!class_exists(\PhpUnitCoverageTest\FooCov::class)) {
            $this->markTestSkipped('This test is not part of the main Symfony test suite. It\'s here to test the CoverageListener.');
        }

        $foo = new \PhpUnitCoverageTest\FooCov();
        $bar = new \PhpUnitCoverageTest\BarCov($foo);

        $this->assertSame('bar', $bar->barZ());
    }
}