How to unit test a custom ClientHttpRequestInterceptor?

[johnjohndoe]

• AndroidAnnotations version: 4.0.0

apt "org.androidannotations:androidannotations:4.0.0"
apt "org.androidannotations:rest-spring:4.0.0"
compile "org.androidannotations:androidannotations-api:4.0.0"
compile "org.androidannotations:rest-spring-api:4.0.0"

• Android compile SDK version: 23

I wrote a custom interceptor inheriting from ClientHttpRequestInterceptor. I would like to unit test it but got stucked because I could not manually instantiate an HttpRequest. I saw a couple of classes in rest-spring-test which might be helpful. I also saw MockClientHttpRequest. None of both is exposed in the library I depend on.
Is there another test dependency I have to add?

[dodgex]

I think this is no android annotations related question but more related to the spring rest project for android. afaik all we do is glue your custom ClientHttpRequestInterceptor to the spring rest client.

[johnjohndoe]

Are you also providing the glue code spring rest is using to test their interceptors?

[dodgex]

Not that i know of. But I actually have no idea how spring rest is testing interceptors. I personally do not use spring rest at all (at least not in android environment).

maybe this hels you? https://svenfila.wordpress.com/2012/01/05/resttemplate-with-custom-http-headers/

[WonderCsabo]

Sorry, but this question is not related to AA. Please ask at upstream.

[johnjohndoe]

Here is what I came up with ...

@RunWith(JUnit4.class)
public class CustomRequestInterceptorTest {

	@Test
	public void intercept() throws Exception {
		Request request = new Request();
		new CustomRequestInterceptor()
                        .intercept(request, null, new RequestExecution());
		HttpHeaders headers = request.getHeaders();
		// TODO assertThat()

	private class Request implements HttpRequest {

		HttpHeaders headers = new HttpHeaders();

		@Override
		public HttpMethod getMethod() {
			return null;
		}

		@Override
		public URI getURI() {
			return null;
		}

		@Override
		public HttpHeaders getHeaders() {
			return headers;
		}
	}

	private class RequestExecution implements ClientHttpRequestExecution {

		@Override
		public ClientHttpResponse execute(HttpRequest request, byte[] body) throws 
                        IOException {
			return null;
		}

	}

}

[WonderCsabo]

@johnjohndoe can't you just mock these with Mockito? In that case these subclasses would not be required.

[johnjohndoe]

Yes. It works. Thanks!