Add test for GUID to UUID conversions

Author: mythz

src/AndroidClient/client/src/androidTest/java/net/servicestack/client/tests/UtilsTests.java

@@ -7,6 +7,7 @@
 
 import java.text.SimpleDateFormat;
 import java.util.Date;
+import java.util.UUID;
 
 public class UtilsTests extends ApplicationTestCase<Application> {
     public UtilsTests() {
@@ -27,4 +28,15 @@ public void test_Can_stripSubMillis(){
         assertEquals("2015-03-27T03:41:41.987+00:00",Utils.stripSubMillis("2015-03-27T03:41:41.9873+00:00"));
         assertEquals("2015-03-27T03:41:41.987+00:00",Utils.stripSubMillis("2015-03-27T03:41:41.987+00:00"));
     }
+
+    //https://www.ntosic.net/2015/05/integrating-net-and-java-convert-system-guid-to-java-util-uuid/
+    public void test_Can_convert_MS_Guid_to_Java_UUID(){
+        String guidStr = "4E07D932-8D1A-4CE1-9314-7AC7826E8966";
+        String uuidStr = "32D9074E-1A8D-E14C-9314-7AC7826E8966";
+
+        UUID uuid = Utils.fromGuidString(guidStr);
+        assertEquals(uuidStr, uuid.toString().toUpperCase());
+
+        assertEquals(guidStr.replaceAll("-",""), Utils.toGuidString(uuid).toUpperCase());
+    }
 }