class LinkExternalProtocolsConstraintValidatorTest

class LinkExternalProtocolsConstraintValidatorTest extends UnitTestCase {
    
    /**
     * @covers ::validate
     * @dataProvider providerValidate
     * @runInSeparateProcess
     */
    public function testValidate($url, $valid) : void {
        $link = $this->createMock('Drupal\\link\\LinkItemInterface');
        $link->expects($this->any())
            ->method('getUrl')
            ->willReturn(Url::fromUri($url));
        $context = $this->createMock(ExecutionContextInterface::class);
        if ($valid) {
            $context->expects($this->never())
                ->method('addViolation');
        }
        else {
            $context->expects($this->once())
                ->method('addViolation');
        }
        // Setup some more allowed protocols.
        UrlHelper::setAllowedProtocols([
            'http',
            'https',
            'magnet',
        ]);
        $constraint = new LinkExternalProtocolsConstraint();
        $validator = new LinkExternalProtocolsConstraintValidator();
        $validator->initialize($context);
        $validator->validate($link, $constraint);
    }
    
    /**
     * Data provider for ::testValidate.
     */
    public static function providerValidate() {
        $data = [];
        // Test allowed protocols.
        $data[] = [
            'http://www.example.com',
            TRUE,
        ];
        $data[] = [
            'https://www.example.com',
            TRUE,
        ];
        // cSpell:disable-next-line
        $data[] = [
            'magnet:?xt=urn:sha1:YNCKHTQCWBTRNJIV4WNAE52SJUQCZO5C',
            TRUE,
        ];
        // Invalid protocols.
        $data[] = [
            'ftp://ftp.funet.fi/pub/standards/RFC/rfc959.txt',
            FALSE,
        ];
        return $data;
    }
    
    /**
     * @covers ::validate
     *
     * @see \Drupal\Core\Url::fromUri
     */
    public function testValidateWithMalformedUri() : void {
        $link = $this->createMock('Drupal\\link\\LinkItemInterface');
        $link->expects($this->any())
            ->method('getUrl')
            ->willThrowException(new \InvalidArgumentException());
        $context = $this->createMock(ExecutionContextInterface::class);
        $context->expects($this->never())
            ->method('addViolation');
        $constraint = new LinkExternalProtocolsConstraint();
        $validator = new LinkExternalProtocolsConstraintValidator();
        $validator->initialize($context);
        $validator->validate($link, $constraint);
    }
    
    /**
     * @covers ::validate
     */
    public function testValidateIgnoresInternalUrls() : void {
        $link = $this->createMock('Drupal\\link\\LinkItemInterface');
        $link->expects($this->any())
            ->method('getUrl')
            ->willReturn(Url::fromRoute('example.test'));
        $context = $this->createMock(ExecutionContextInterface::class);
        $context->expects($this->never())
            ->method('addViolation');
        $constraint = new LinkExternalProtocolsConstraint();
        $validator = new LinkExternalProtocolsConstraintValidator();
        $validator->initialize($context);
        $validator->validate($link, $constraint);
    }

}