Bitpay\Util\UtilTest::testGuid PHP Метод

    public function testGuid()
    {
        $guid = Util::guid();
        // ensure proper length
        $this->assertEquals(36, strlen($guid));
        // Make sure in proper format
        $guid = explode('-', $guid);
        $this->assertEquals(8, strlen($guid[0]));
        $this->assertEquals(4, strlen($guid[1]));
        $this->assertEquals(4, strlen($guid[2]));
        $this->assertEquals(4, strlen($guid[3]));
        $this->assertEquals(12, strlen($guid[4]));
    }