public function testTearDownAfterClass() { $test = new KernelTestCase(); $reflection = new \ReflectionObject($test); $property = $reflection->getProperty('container'); $property->setAccessible(true); $method = $reflection->getMethod('getContainer'); $method->setAccessible(true); $dir = static::$container->getParameter('kernel.cache_dir'); $this->assertTrue(scandir($dir) > 5); KernelTestCase::tearDownAfterClass(); $this->assertCount(2, scandir($dir)); }