Fuel\Validation\ValidatorTest::testValidateFieldWithEmptyString PHP Method

    public function testValidateFieldWithEmptyString()
    {
        $this->object->addField('tel_no')->number();
        $data = array('tel_no' => '');
        $result = $this->object->run($data);
        $this->assertTrue($result->isValid());
        $data = array('tel_no' => '0');
        $result = $this->object->run($data);
        $this->assertTrue($result->isValid());
    }