LazyRecord\Testing\ModelProfileTestCase::setUp PHP Method

    public function setUp()
    {
        if (!extension_loaded('xhprof')) {
            return $this->markTestSkipped('profiling requires xhprof extension.');
        }
        if (!isset($_ENV['XHPROF_ROOT'])) {
            return $this->markTestSkipped('XHPROF_ROOT environment variable must be set.');
        }
        if ($N = getenv('N')) {
            $this->N = $N;
        }
        /*
        if (extension_loaded('xhprof') ) {
            // ini_set('xhprof.output_dir','/tmp');
        }
        */
        parent::setUp();
        $this->startTime = microtime(true);
        xhprof_enable(XHPROF_FLAGS_CPU | XHPROF_FLAGS_MEMORY, ['ignored_functions' => []]);
    }