How to wait for the result on a Okhttp call to use it on a test?

Question

I've created a method to check if my app is able to connect to my server using OkHttp.

This is my test class:

public class NetworkTest {

static boolean resultWeb = false;

public static boolean pingTestWeb() {

    OkHttpClient client = new OkHttpClient();

    Request request = new Request.Builder()
            .url("http://www.google.com")//My server address will go here
            .build();

    client.newCall(request).enqueue(new Callback() {

        @Override
        public void onFailure(Request request, IOException e) {
            resultWeb = false;
            Log.i("Error","Failed to connect: "+e.getMessage());
        }

        @Override
        public void onResponse(Response response) throws IOException {

            Log.i("Success","Success: "+response.code());
            if (response.code() == 200) {
                resulWeb = true;
            }
        }
    });

    return resultWeb;
}

And here is where I'm making the test on my activity on OnCreate():

if (NetworkTest.pingTestWeb()) {

        // Do something if true...

    } else {

        // Do something if false, like showing an AlertDialog...
    }

The question is, my pingTestWeb have the default Timeout time of 10000ms, how do I make the activity create the AlertDialog only if the pingTestWeb is false? Because it isn't waiting for the response.

Answer 1

You can also use CountDownLatch, in this way you can put async in your test:

public class NetworkTest {

static boolean resultWeb = false;

public static boolean pingTestWeb() {

    OkHttpClient client = new OkHttpClient();

    Request request = new Request.Builder()
            .url("http://www.google.com")//My server address will go here
            .build();

    CountDownLatch countDownLatch = new CountDownLatch(1);
    client.newCall(request).enqueue(new Callback() {

        @Override
        public void onFailure(Request request, IOException e) {
            resultWeb = false;
            Log.i("Error","Failed to connect: "+e.getMessage());
            countDownLatch.countDown();
        }

        @Override
        public void onResponse(Response response) throws IOException {

            Log.i("Success","Success: "+response.code());
            if (response.code() == 200) {
                resulWeb = true;
            }
            countDownLatch.countDown();
        }
    });

    countDownLatch.await();
    return resultWeb;
}