facebook / facebook-php-sdk-v4

use Facebook\PseudoRandomString\McryptPseudoRandomStringGenerator;

class McryptPseudoRandomStringGeneratorTest extends \PHPUnit_Framework_TestCase

{

    public function testCanGenerateRandomStringOfArbitraryLength()

    {

        if (!function_exists('mcrypt_create_iv')) {

            $this->markTestSkipped(

                'Mcrypt must be installed to test mcrypt_create_iv().'

            );

        }

        $prsg = new McryptPseudoRandomStringGenerator();

        $randomString = $prsg->getPseudoRandomString(10);

        $this->assertEquals(1, preg_match('/^([0-9a-f]+)$/', $randomString));

        $this->assertEquals(10, mb_strlen($randomString));

    }

}

use Facebook\PseudoRandomString\OpenSslPseudoRandomStringGenerator;

class OpenSslPseudoRandomStringGeneratorTest extends \PHPUnit_Framework_TestCase

{

    public function testCanGenerateRandomStringOfArbitraryLength()

    {

        if (!function_exists('openssl_random_pseudo_bytes')) {

            $this->markTestSkipped(

                'The OpenSSL extension must be enabled to test openssl_random_pseudo_bytes().'

            );

        }

        $prsg = new OpenSslPseudoRandomStringGenerator();

        $randomString = $prsg->getPseudoRandomString(10);

        $this->assertEquals(1, preg_match('/^([0-9a-f]+)$/', $randomString));

        $this->assertEquals(10, mb_strlen($randomString));

    }

}

use Facebook\PseudoRandomString\UrandomPseudoRandomStringGenerator;

class UrandomPseudoRandomStringGeneratorTest extends \PHPUnit_Framework_TestCase

{

    public function testCanGenerateRandomStringOfArbitraryLength()

    {

        if (ini_get('open_basedir')) {

            $this->markTestSkipped(

                'Cannot test /dev/urandom generator due to open_basedir constraint.'

            );

        }

        if (!is_readable('/dev/urandom')) {

            $this->markTestSkipped(

                '/dev/urandom not found or is not readable.'

            );

        }

        $prsg = new UrandomPseudoRandomStringGenerator();

        $randomString = $prsg->getPseudoRandomString(10);

        $this->assertEquals(1, preg_match('/^([0-9a-f]+)$/', $randomString));

        $this->assertEquals(10, mb_strlen($randomString));

    }

}