@Test
public void convertAndValidateWorksWithMinimalData() {

  CreateWorkflowInstanceRequest req = new CreateWorkflowInstanceRequest();
  req.type = "wfType";
  WorkflowInstance i = converter.convert(req);
  assertThat(i.nextActivation, notNullValue(DateTime.class));
  assertThat(i.businessKey, nullValue(String.class));
  assertThat(i.externalId, nullValue(String.class));
  assertThat(i.type, equalTo(req.type));
}