infra(travis): config for tests

Author: addyosmani

.travis.yml

@@ -1,6 +1,21 @@
 language: node_js
+sudo: required
 node_js:
   - node
+
 cache:
+  yarn: true
   directories:
-    - "node_modules"
+    - node_modules
+
+before_script:
+  - npm install -g yarn
+  - yarn install
+  - './start-server.sh'
+
+script:
+  - yarn test
+
+notifications:
+  email:
+    on_failure: change

start-server.sh

@@ -0,0 +1,3 @@
+#!/bin/bash
+http-server &
+sleep 3

test/sample.spec.js

@@ -1,5 +1,5 @@
 describe('quicklink tests', function () {
-  const server = `http://127.0.0.1:8080/test`;
+  const server = `http://127.0.0.1:8081/test`;
   let page;
 
   before(async function () {