Phalcon\Test\Unit\Filter\FilterCustomTest::testSanitizeCustomIpv4FilterIP PHP Method

    public function testSanitizeCustomIpv4FilterIP()
    {
        $this->specify("custom filter does not return correct IP", function () {
            $filter = new Filter();
            $filter->add('ipv4', new IPv4());
            $expected = '127.0.0.1';
            $actual = $filter->sanitize('127.0.0.1', 'ipv4');
            expect($actual)->equals($expected);
        });
    }