Wait until dev server is ready

Author: rlamana

test/Client.test.js

@@ -26,24 +26,30 @@ function startProxy(port) {
 }
 
 describe('Client code', () => {
-  let proxy;
   let server;
 
   beforeAll((done) => {
     server = runDevServer('--host 0.0.0.0 --port 8080', configPath);
-    proxy = startProxy(9090);
     setTimeout(done, 5000);
   });
 
-  afterAll((done) => {
-    proxy.close();
+  afterAll(() => {
     server.close();
-    done();
   });
 
   describe('behind a proxy', () => {
+    let proxy;
+
     jest.setTimeout(20000);
 
+    beforeAll(() => {
+      proxy = startProxy(9090);
+    });
+
+    afterAll(() => {
+      proxy.close();
+    });
+
     it('responds with a 200', (done) => {
       const req = request('http://localhost:9090');
       req.get('/sockjs-node').expect(200, 'Welcome to SockJS!\n', done);