diff --git a/app/src/test/java/nodomain/freeyourgadget/gadgetbridge/test/LoggingTest.java b/app/src/test/java/nodomain/freeyourgadget/gadgetbridge/test/LoggingTest.java
index 6049c7e6b..b6e806933 100644
--- a/app/src/test/java/nodomain/freeyourgadget/gadgetbridge/test/LoggingTest.java
+++ b/app/src/test/java/nodomain/freeyourgadget/gadgetbridge/test/LoggingTest.java
@@ -72,4 +72,13 @@ public class LoggingTest extends TestBase {
             throw ex;
         }
     }
+
+    @Test
+    public void testLogFormat() {
+        String tempOut = Logging.formatBytes(new byte[] {0xa});
+        assertEquals("0x0a", tempOut);
+
+        tempOut = Logging.formatBytes(new byte[] {0xa, 1, (byte) 255});
+        assertEquals("0x0a 0x01 0xff", tempOut);
+    }
 }