feat(ci): add travis ci (#85)

.travis.yml

@@ -0,0 +1,13 @@
+language: node_js
+node_js:
+  - "8"
+sudo: required
+dist: trusty
+addons:
+  chrome: stable
+before_script:
+  - "sudo chown root /opt/google/chrome/chrome-sandbox"
+  - "sudo chmod 4755 /opt/google/chrome/chrome-sandbox"
+script:
+  - npm run build -s
+  - npm run test

test/karma.conf.js

@@ -82,7 +82,7 @@ module.exports = function config(config) {
 
     // start these browsers
     // available browser launchers: https://npmjs.org/browse/keyword/karma-launcher
-    browsers: ['Chrome'],
+    browsers: ['ChromeHeadless'],
 
     browserDisconnectTimeout: 2000000,
     browserNoActivityTimeout: 2400000,