@Test
public void testPrepare() {

  final String[] args = {"explain"};
  final OperationRegistry registry = OperationRegistry.getInstance();
  final OperationParser parser = new OperationParser(registry);
  final CommandLineOperationParams params = parser.parse(GeoWaveTopLevelSection.class, args);
  final ExplainCommand expcommand = new ExplainCommand();
  expcommand.prepare(params);
  assertEquals(false, params.isValidate());
  assertEquals(true, params.isAllowUnknown());
}