Travis integration

Author: kamil.mysliwiec

.travis.yml

@@ -1,6 +1,9 @@
 language: node_js
 node_js:
       - "7"
+before_script:
+     - export DISPLAY=:99.0
+     - sh -e /etc/init.d/xvfb start
 script:
       - npm test
       - npm run build

example/app.ts

@@ -5,9 +5,9 @@ export class Application implements NestApplication {
     constructor(private app) {}
 
     start() {
-        this.app.listen(3030, () => {
+        const server = this.app.listen(3030, () => {
             console.log("Application listen on port:", 3030);
-            this.app.close();
+            server.close();
         });
     }