@Test
public void testUpgradeWithBlankChecksum()
{


    upgradeSpec.setChecksum( " " );
    Response response = upgrade( upgradeSpec );
    assertNotNull( response );

    assertTrue( response.getStatus() == Status.BAD_REQUEST.getStatusCode() );

    UpgradeStatus status = (UpgradeStatus) response.getEntity();
    assertNotNull( status );

    message = "'checksum' is a mandatory parameter for HMS Upgrade.";
    assertEquals( message, status.getMoreInfo() );
}