对于服务,最好通过构造函数或 setter 注入。这使得在单元测试期间很容易模拟和传递。至于模拟,你应该使用像Mockito这样的框架。然后你可以做类似的事情
MyService service = Mockito.mock(MyService.class);
when(service.getObject()).thenReturn(new Object());
HttpHeaders headers = Mockito.mock(HttpHeaders.class);
when(headers.getHeaderString("X-Header")).thenReturn("blah");
UriInfo uriInfo = Mockito.mock(UriInfo.class);
when(uriInfo.getRequestUri()).thenReturn(URI.create("http://localhost"));
然后,您可以在UNIT测试时将所有这些模拟传递给您的资源类。
对于集成测试,您不需要模拟标头或 uriinfo。实际的会被传入。但如果你愿意,你仍然可以模拟服务。这是一个例子
public class MockServiceTest extends JerseyTest {
public static interface Service {
String getMessage(String name);
}
@Path("message")
public static class MessageResource {
private final Service service;
public MessageResource(Service service) {
this.service = service;
}
@GET
public String get(@QueryParam("name") String name,
@Context HttpHeaders headers,
@Context UriInfo uriInfo) {
String nameQuery = uriInfo.getQueryParameters().getFirst("name");
String header = headers.getHeaderString("X-Header");
assertNotNull(nameQuery);
assertNotNull(header);
return service.getMessage(name);
}
}
private Service service;
@Override
public ResourceConfig configure() {
service = Mockito.mock(Service.class);
return new ResourceConfig().register(new MessageResource(service));
}
@Test
public void testIt() {
Mockito.when(service.getMessage("peeskillet")).thenReturn("Hello peeskillet");
Response response = target("message").queryParam("name", "peeskillet").request()
.header("X-Header", "blah")
.get();
assertEquals(200, response.getStatus());
assertEquals("Hello peeskillet", response.readEntity(String.class));
}
}