@Test
public void testFind() throws Exception{

  String expected_result = "ubuntu12";
  String actual_result = os_family.find("debian12");
  Assert.assertNotNull(actual_result);
  Assert.assertEquals(expected_result, actual_result);
  // for windows
  expected_result = "winsrv6";
  actual_result = os_family.find("win2012server6");
  Assert.assertNotNull(actual_result);
  Assert.assertEquals(expected_result, actual_result);
}