Add test

Author: stevebauman

tests/Unit/Models/Attributes/TimestampTest.php

@@ -13,6 +13,8 @@ class TimestampTest extends TestCase
 
     protected string $utcLdapTimestamp = '20201002021244Z';
 
+    protected string $utcLdapMillisecondsTimestamp = '20231106080944.000Z';
+
     protected string $offsetLdapTimestamp = '20201002021244-0500';
 
     protected string $utcWindowsTimestamp = '20201002021618.0Z';
@@ -83,6 +85,10 @@ public function test_ldap_type_can_be_converted_to_date()
         $this->assertInstanceOf(DateTime::class, $datetime);
         $this->assertEquals('-05:00', $datetime->timezone->getName());
         $this->assertEquals('Fri Oct 02 2020 02:12:44 GMT-0500', $datetime->toString());
+
+        $datetime = $timestamp->toDateTime($this->utcLdapMillisecondsTimestamp);
+        $this->assertEquals('UTC', $datetime->timezone->getName());
+        $this->assertEquals('Mon Nov 06 2023 08:09:44 GMT+0000', $datetime->toString());
     }
 
     public function test_windows_type_can_be_converted_to_date()