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android-espressoandroid-testingmockwebserver

Test with consecutive calls to MockWebServer


I am writing test for an Activity which makes several consecutive calls to server. My MockWebServer mixes sequence of responses.e.g. When I make two consecutive requests request1 and request2 it sometimes returns request2's Json in response to request1 and request1's Json in response to request2. How can I specify which response MockWebServer has to return to specified request?

server.enqueue(new MockResponse()
                .setResponseCode(200)
                .setBody(readFromFile("response1 path"));

server.enqueue(new MockResponse()
                .setResponseCode(200)
                .setBody(readFromFile("response2 path"));

In documentation it is said "Enqueue scripts response to be returned to a request made in sequence. The first request is served by the first enqueued response; the second request by the second enqueued response; and so on."

This sequence doesn't work in case of parallel requests.


Solution

  • To handle the sequence of responses I have written a dispatcher for my MockServer instance. It receives a request, checks it's URL's endpoint and returns corresponding response

    Dispatcher mDispatcher = new Dispatcher() {
        @Override
        public MockResponse dispatch(RecordedRequest request) {
             if (request.getPath().contains("/request1")) {
                 return new MockResponse().setBody("reponse1");
             }
             if (request.getPath().contains("/request2")) {
                 return new MockResponse().setBody("reponse2");
             }
             return new MockResponse().setResponseCode(404);
           }
         }
     mMockServer.setDispatcher(mDispatcher);