I have a resource method which produces a streaming download:
#GET
#Path("/{assetId}")
#Produces(MediaType.APPLICATION_OCTET_STREAM)
public Response download(#PathParam("assetId") String assetId) {
StreamingOutput stream = os -> service.download(assetId, os);
return Response.ok(stream).build();
}
I want to unit test this with a mock service object. I already have:
private static AssetsService service = Mockito.mock(AssetsService.class);
#ClassRule
public final static ResourceTestRule resource = ResourceTestRule.builder()
.addResource(new AssetsResource(service))
.addProvider(MultiPartFeature.class)
.build();
#Test
public void testDownload() {
reset(service);
// how to get an output stream from this?
resource.client().target("/assets/123").request().get();
}
Per my comment in the test, what do I need to do in order to get an outputstream from the response? I find the jersey client API pretty confusing.
Once I have this, I'll stub the service call so that it writes a known file, and test that it's received correctly.
Try this:
Response response = resource.client().target("/assets/123").request().get();
InputStream is = response.readEntity(InputStream.class);
Related
I have this code in my service:
public String requestValue() {
Call call = okHttpClient.newCall(new Request.Builder().url("external-url").build());
Response response = call.execute();
return response.body().string();
}
How can I mock the result of this call in a Junit test?
public void testRequestValue() {
// TODO mock http response
String result = myService.requestValue();
assertEquals("value", result);
}
note: naive solution with Mockito does not work. Mockito.eq does not trigger on Request objects (seems like Request.equals provides incorrect result for identical requests).
Request request = new Request.Builder().url("external-url").build();
Response response = new Response.Builder()
.request(request)
.protocol(Protocol.HTTP_2)
.code(200)
.message("")
.body(ResponseBody.create("value", MediaType.get("application/json")))
.build();
Call call = Mockito.mock(Call.class);
Mockito.when(call.execute()).thenReturn(response);
Mockito.when(okHttpClientMock.newCall(Mockito.eq(request))).thenReturn(call);
You could use wiremock or the MockServer provided by okhttp
I developed an API using web-flux which is working fine when I make request using POSTMAN. My code is:
Controller:
#PostMapping("/post", produces = ["application/xml"])
fun post(#Valid request: RequestData): Mono<Response> {
return Mono.just(request)
...
...
...
}
dto:
data class RequestData(
#get:NotBlank
#get:Email
val email: String = "",
)
So whenever I pass invalid email via POSTMAN, I'm catching the exception like below and its working:
#ExceptionHandler
fun bindingExceptionHandler(e: WebExchangeBindException) = "Custom Error Message"
But now when I write UT(#WebFluxTest) for this case (Invalid emaid), It failed.
#Test
fun testWhenInvalidEmail() {
// Request body
val email = "invalidemail"
val request = LinkedMultiValueMap<String, String>()
request.add("email", email)
webTestClient.post().uri("/post")
.body(BodyInserters.fromFormData(request))
.exchange()
.expectStatus().isOk
}
When I debug this, I found that my exceptionHandler not coming into picture when request coming through unit test. I'm using application/x-www-form-urlencoded content type in POST request.
Please let me know where I'm doing wrong.
I followed this question as well but didn't work.
As mentioned on another related question, this has been fixed in Spring Boot 2.1.0.
Also, you shouldn't have to build WebTestClient yourself but instead inject it in your test class (see reference documentation about that):
#RunWith(SpringRunner.class)
#WebFluxTest(MyValidationController.class)
public class MyValidationControllerTests {
#Autowired
private WebTestClient webClient;
#Test
public void testWhenInvalidEmail() {
//...
}
}
I am trying to implement a rest web service using Apache CXF and I want to return list of object as a response from server. So i have used generic entity to wrap my list on a server and everything is fine when I enter path from browser. It prints XML representation of object because I have used Jackson JAX-B but when i try to use JAX-RS client. I am getting an exception.
Exception in thread "main" javax.ws.rs.client.ResponseProcessingException: Problem with reading the data, class XYZ, ContentType: /.
at org.apache.cxf.jaxrs.impl.ResponseImpl.reportMessageHandlerProblem(ResponseImpl.java:433)
at org.apache.cxf.jaxrs.impl.ResponseImpl.doReadEntity(ResponseImpl.java:378)
at org.apache.cxf.jaxrs.impl.ResponseImpl.readEntity(ResponseImpl.java:325)
at org.apache.cxf.jaxrs.impl.ResponseImpl.readEntity(ResponseImpl.java:313)
at XYZ.ABC()
at XYZ.ABC()
Caused by: javax.ws.rs.core.NoContentException: Message body is empty
at org.apache.cxf.jaxrs.provider.AbstractJAXBProvider.reportEmptyContentLength(AbstractJAXBProvider.java:276)
at org.apache.cxf.jaxrs.provider.JAXBElementProvider.readFrom(JAXBElementProvider.java:166)
at org.apache.cxf.jaxrs.utils.JAXRSUtils.readFromMessageBodyReader(JAXRSUtils.java:1325)
at org.apache.cxf.jaxrs.impl.ResponseImpl.doReadEntity(ResponseImpl.java:369)
... 4 more
I have written a following client code to get data from server
final Client client = ClientBuilder.newClient();
WebTarget webTarget = client.target(URI.create(PATH));
Response response = webTarget.request(MediaType.APPLICATION_XML).get();
List<ABC> obj = response.readEntity(new GenericType<List<ABC>> (ABC.class){});
But Apart from it I have tried many code to implement CXF client and get data from server but I am getting a same exception almost all the time. I have tried JAXRSCLIENTFactory also to implement client but the same exception.
I ran into the same problem in unmarshalling using the CXF client. Here is how I did it:
Read the response into a String.
Used Gson to convert from string to list of objects.
Note: You will need a wrapper class for your list of objects.
Example:
If the server returns a list of products, Here is how to unmarshall the list:
Create a wrapper class
public class ProductList {
private List<Product> products;
public List<Product> getProducts() {
return products;
}
public void setProducts(List<Product> products) {
this.products = products;
}
}
Code to unmarshall
String responseBody = response.readEntity(String.class);
ProductList productList = new Gson().fromJson(responseBody, ProductList.class);
if(productList.getProducts() != null)
return productList.getProducts();
Please ignore the spelling mistake, I cannot copy code so I have typed the whole thing and changed name of controller and method.
WEB API 2
Controller:
// Controller name is Test
public HttpResponseMessage Method1(int param1) // Post method
{
// return string
}
If I create an object of controller in test case then it is working fine. But if I want to test in localhost using following code:
Unit Test:
public void Method1Test()
{
HttpResponseMessage response;
HttpConfiguration config = new HttpConfiguration();
config.Routes.MapHttpRoute("DefaultApi", "api/{controller}/{id}");
HttpServer server = new HttpServer(config);
using(var client = new HttpClient(server))
{
HttpRequestMessage request = new HttpRequestMessage(HttpMethod.Post, "http://localhost:5022/api/test?param1=1");
request.Content = new ObjectContent<int>(param1, new JsonMediaTypeFormatter());
response = client.SendAsync(request, CancellationToken.None).Result;
};
Assert.AreEqual(HttpStatusCode.OK, response.StatusCode);
}
Now, my test case is failing. I used the same code in different project and it worked. May be it is the way I am trying to call Post method. Is this the right way to call post method with Int parameter in URL?
In help page, under API column it shows:
POST api/test/param1={param1}
Also I have put some stop point in actual service I am cursor is not stopping at that point. Why?
If I want to call the same service from browser, what URL should I pass? Is it -
http://localhost:5022/api/test?param1=1
Or something else?
I figured it out. Following is the correct unit test method but this has some extra information which I have not provided earlier i.e., passing object as an input for the service.
private void Method1Test(ObjectClass obj)
{
HttpResponseMessage response = null;
HttpConfiguration config = new HttpConfiguration();
config.Routes.MapHttpRoute("DefaultApi", "api/{controller}/{id}");
HttpServer server = new HttpServer(config);
using (var client = new HttpClient(server))
{
HttpRequestMessage request = new HttpRequestMessage(HttpMethod.Post, "http://localhost:5022/api/test/1");
request.Content = new ObjectContent<ObjectClass>(obj, new JsonMediaTypeFormatter());
response = client.SendAsync(request, CancellationToken.None).Result;
};
Assert.AreEqual(HttpStatusCode.OK, response.StatusCode);
}
So the correct URL that I was looking for was
http://localhost:5022/api/test/1
Sorry, It took long to post this answer. This method is working like a charm for more then 2 years.
I wrote a Rest-Service which i would like to test.
I wanna run a JUnit test without having my server run. For this I am using the Server-side Mock Framework of RestEasy.
My question is, how can I make a Http-Put or Http-Post request with this framework with an marshalled Java Object in the Http-Body???
The Code below runs fine for an Http-Get, but how to make a Put or Post, maybe someone got some example code for this???
#Test
public void testClient() throws Exception {
Dispatcher dispatcher = MockDispatcherFactory.createDispatcher();
POJOResourceFactory noDefaults = new POJOResourceFactory(
MyClass.class);
dispatcher.getRegistry().addResourceFactory(noDefaults);
{
MockHttpRequest request = MockHttpRequest.get("/message/test/"
+ requestParam);
MockHttpResponse response = new MockHttpResponse();
dispatcher.invoke(request, response);
assertEquals(HttpServletResponse.SC_OK, response.getStatus());
}
}
A bit late response but , might have some use for someone.
This is how i usually test my PUT requests. Hope it helps
#Test
public void testPUT() throws Exception {
POJOResourceFactory noDefaults = new POJOResourceFactory(REST.class);
Dispatcher dispatcher = MockDispatcherFactory.createDispatcher();
dispatcher.getRegistry().addResourceFactory(noDefaults);
String url = "your_url_here";
MockHttpRequest request = MockHttpRequest.put(url);
request.accept(MediaType.APPLICATION_JSON);
request.contentType(MediaType.APPLICATION_JSON_TYPE);
// res being your resource object
request.content(res.toJSONString().getBytes());
MockHttpResponse response = new MockHttpResponse();
dispatcher.invoke(request, response);
Assert.assertEquals( HttpStatus.SC_CREATED,response.getStatus());
}