@Test
public void testGetExternalLevelName() throws Exception {

  String external = RequestOperationLevel.getExternalLevelName(hostComponent);
  assertEquals(external, host_component);
  // Check wrong param
  try {
    RequestOperationLevel.getExternalLevelName("Wrong_param");
    fail("Should throw exception");
  } catch (IllegalArgumentException e) {
    // expected
  }
}