Unit test for Utils

Adding a unit test for the bug fixed
in Change I42ff06aab20c2a9800abe7daed8cf408eb3c2038
commit 1b7d532f160dca7a3850f50d431cc5bb5b92d85d

Change-Id: I29ab714a100cd0b5356de3f4cdca82765afbefd9
1 file changed