Writing an integration test to retrieve all todos is simple. Consider the following method:

@Test
public void retrieveTodos() throws Exception {
    String expected = "[" + "{id:1,user:Jack,desc:"Learn Spring MVC",done:false}" + "," +
        "{id:2,user:Jack,desc:"Learn Struts",done:false}" + "]";

    ResponseEntity < String > response = template.exchange(
        "/users/Jack/todos",
        HttpMethod.GET,
        new HttpEntity < String > (null, headers), String.class);
    JSONAssert.assertEquals(expected,
        response.getBody(), false);
}

This test is very similar to the integration test for BasicController, except for the fact that we are using JSONAssert to assert the response content.