/**
* @test
*/
public function flushRemovesOnlyOwnEntries()
{
$thisCache = $this->createMock(FrontendInterface::class);
$thisCache->expects($this->any())->method('getIdentifier')->will($this->returnValue('thisCache'));
$thisBackend = new ApcBackend($this->getEnvironmentConfiguration(), []);
$thisBackend->setCache($thisCache);
$thatCache = $this->createMock(FrontendInterface::class);
$thatCache->expects($this->any())->method('getIdentifier')->will($this->returnValue('thatCache'));
$thatBackend = new ApcBackend($this->getEnvironmentConfiguration(), []);
$thatBackend->setCache($thatCache);
$thisBackend->set('thisEntry', 'Hello');
$thatBackend->set('thatEntry', 'World!');
$thatBackend->flush();
$this->assertEquals('Hello', $thisBackend->get('thisEntry'));
$this->assertFalse($thatBackend->has('thatEntry'));
}