// Insert something
Map<String, Object> testObject = JsonUtil.rhombusMapFromJsonMap(TestHelpers.getTestObject(0), definition.getDefinitions().get("testtype"));
UUID key = (UUID) om.insert("testtype", testObject);
// Truncate tables
om.truncateTables();
// Make sure it is gone
Map<String, Object> returnedObject = om.getByKey("testtype", key);
assertNull(returnedObject);