Ouzo\Validatable::validateDateTime PHP Method

    public function validateDateTime($value, $errorMessage, $errorField = null)
    {
        if (!strtotime($value)) {
            $this->error($errorMessage);
            $this->_errorFields[] = $errorField;
        }
    }

 /**
  * @test
  */
 public function shouldValidateCorrectDateTime()
 {
     // given
     $validatable = new Validatable();
     // when
     $validatable->validateDateTime('2011-02-05', 'Wrong date.');
     // then
     $this->assertEmpty($validatable->getErrors());
 }