Jobby\Helper::getApplicationEnv PHP Метод

    public function getApplicationEnv()
    {
        return isset($_SERVER['APPLICATION_ENV']) ? $_SERVER['APPLICATION_ENV'] : null;
    }

 /**
  * @covers ::getApplicationEnv
  */
 public function testGetApplicationEnvShouldBeNullIfUndefined()
 {
     $actual = $this->helper->getApplicationEnv();
     $this->assertNull($actual);
 }