<?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Symfony\Component\Validator\Tests\Constraints;

use Symfony\Bridge\PhpUnit\DnsMock;
use Symfony\Component\Validator\Constraints\Email;
use Symfony\Component\Validator\Constraints\EmailValidator;
use Symfony\Component\Validator\Test\ConstraintValidatorTestCase;

/**
 * @group dns-sensitive
 */
class EmailValidatorTest extends ConstraintValidatorTestCase
{
    protected function createValidator()
    {
        return new EmailValidator(false);
    }

    public function testNullIsValid()
    {
        $this->validator->validate(null, new Email());

        $this->assertNoViolation();
    }

    public function testEmptyStringIsValid()
    {
        $this->validator->validate('', new Email());

        $this->assertNoViolation();
    }

    /**
     * @expectedException \Symfony\Component\Validator\Exception\UnexpectedTypeException
     */
    public function testExpectsStringCompatibleType()
    {
        $this->validator->validate(new \stdClass(), new Email());
    }

    /**
     * @dataProvider getValidEmails
     */
    public function testValidEmails($email)
    {
        $this->validator->validate($email, new Email());

        $this->assertNoViolation();
    }

    public function getValidEmails()
    {
        return array(
            array('fabien@symfony.com'),
            array('example@example.co.uk'),
            array('fabien_potencier@example.fr'),
        );
    }

    /**
     * @dataProvider getInvalidEmails
     */
    public function testInvalidEmails($email)
    {
        $constraint = new Email(array(
            'message' => 'myMessage',
        ));

        $this->validator->validate($email, $constraint);

        $this->buildViolation('myMessage')
            ->setParameter('{{ value }}', '"'.$email.'"')
            ->setCode(Email::INVALID_FORMAT_ERROR)
            ->assertRaised();
    }

    public function getInvalidEmails()
    {
        return array(
            array('example'),
            array('example@'),
            array('example@localhost'),
            array('foo@example.com bar'),
        );
    }

    public function testStrict()
    {
        $constraint = new Email(array('strict' => true));

        $this->validator->validate('example@localhost', $constraint);

        $this->assertNoViolation();
    }

    /**
     * @dataProvider getInvalidEmailsForStrictChecks
     */
    public function testStrictWithInvalidEmails($email)
    {
        $constraint = new Email(array(
            'message' => 'myMessage',
            'strict' => true,
        ));

        $this->validator->validate($email, $constraint);

        $this
            ->buildViolation('myMessage')
            ->setParameter('{{ value }}', '"'.$email.'"')
            ->setCode(Email::INVALID_FORMAT_ERROR)
            ->assertRaised();
    }

    /**
     * @see https://github.com/egulias/EmailValidator/blob/1.2.8/tests/egulias/Tests/EmailValidator/EmailValidatorTest.php
     */
    public function getInvalidEmailsForStrictChecks()
    {
        return array(
            array('test@example.com test'),
            array('user  name@example.com'),
            array('user   name@example.com'),
            array('example.@example.co.uk'),
            array('example@example@example.co.uk'),
            array('(test_exampel@example.fr)'),
            array('example(example)example@example.co.uk'),
            array('.example@localhost'),
            array('ex\ample@localhost'),
            array('example@local\host'),
            array('example@localhost.'),
            array('user name@example.com'),
            array('username@ example . com'),
            array('example@(fake).com'),
            array('example@(fake.com'),
            array('username@example,com'),
            array('usern,ame@example.com'),
            array('user[na]me@example.com'),
            array('"""@iana.org'),
            array('"\"@iana.org'),
            array('"test"test@iana.org'),
            array('"test""test"@iana.org'),
            array('"test"."test"@iana.org'),
            array('"test".test@iana.org'),
            array('"test"'.chr(0).'@iana.org'),
            array('"test\"@iana.org'),
            array(chr(226).'@iana.org'),
            array('test@'.chr(226).'.org'),
            array('\r\ntest@iana.org'),
            array('\r\n test@iana.org'),
            array('\r\n \r\ntest@iana.org'),
            array('\r\n \r\ntest@iana.org'),
            array('\r\n \r\n test@iana.org'),
            array('test@iana.org \r\n'),
            array('test@iana.org \r\n '),
            array('test@iana.org \r\n \r\n'),
            array('test@iana.org \r\n\r\n'),
            array('test@iana.org  \r\n\r\n '),
            array('test@iana/icann.org'),
            array('test@foo;bar.com'),
            array('test;123@foobar.com'),
            array('test@example..com'),
            array('email.email@email."'),
            array('test@email>'),
            array('test@email<'),
            array('test@email{'),
            array(str_repeat('x', 254).'@example.com'), //email with warnings
        );
    }

    /**
     * @dataProvider getDnsChecks
     * @requires function Symfony\Bridge\PhpUnit\DnsMock::withMockedHosts
     */
    public function testDnsChecks($type, $violation)
    {
        DnsMock::withMockedHosts(array('example.com' => array(array('type' => $violation ? false : $type))));

        $constraint = new Email(array(
            'message' => 'myMessage',
            'MX' === $type ? 'checkMX' : 'checkHost' => true,
        ));

        $this->validator->validate('foo@example.com', $constraint);

        if (!$violation) {
            $this->assertNoViolation();
        } else {
            $this->buildViolation('myMessage')
                ->setParameter('{{ value }}', '"foo@example.com"')
                ->setCode($violation)
                ->assertRaised();
        }
    }

    public function getDnsChecks()
    {
        return array(
            array('MX', false),
            array('MX', Email::MX_CHECK_FAILED_ERROR),
            array('A', false),
            array('A', Email::HOST_CHECK_FAILED_ERROR),
            array('AAAA', false),
            array('AAAA', Email::HOST_CHECK_FAILED_ERROR),
        );
    }

    /**
     * @requires function Symfony\Bridge\PhpUnit\DnsMock::withMockedHosts
     */
    public function testHostnameIsProperlyParsed()
    {
        DnsMock::withMockedHosts(array('baz.com' => array(array('type' => 'MX'))));

        $this->validator->validate(
            '"foo@bar"@baz.com',
            new Email(array('checkMX' => true))
        );

        $this->assertNoViolation();
    }

    /**
     * @dataProvider provideCheckTypes
     */
    public function testEmptyHostIsNotValid($checkType, $violation)
    {
        $this->validator->validate(
            'foo@bar.fr@',
            new Email(array(
                'message' => 'myMessage',
                $checkType => true,
            ))
        );

        $this
            ->buildViolation('myMessage')
            ->setParameter('{{ value }}', '"foo@bar.fr@"')
            ->setCode($violation)
            ->assertRaised();
    }

    public function provideCheckTypes()
    {
        return array(
            array('checkMX', Email::MX_CHECK_FAILED_ERROR),
            array('checkHost', Email::HOST_CHECK_FAILED_ERROR),
        );
    }
}
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