@Test
public void retrieveTodo() throws Exception {

	Todo mockTodo = new Todo(1, "Jack", "Learn Spring MVC", new Date(), false);
	when(service.retrieveTodo(anyInt())).thenReturn(mockTodo);
	MvcResult result = mvc
			.perform(MockMvcRequestBuilders.get("/users/Jack/todos/1").accept(MediaType.APPLICATION_JSON))
			.andExpect(status().isOk()).andReturn();
	String expected = "{id:1,user:Jack,desc:\"Learn Spring MVC\",done:false}";
	JSONAssert.assertEquals(expected, result.getResponse().getContentAsString(), false);
}