run build in test

Author: eidng8

.travis.yml

@@ -48,6 +48,7 @@ jobs:
       script:
         - npm run test:unit -- --coverage
         - npm run test:e2e
+        - npm run build
       after_script:
         - cat ./coverage/lcov.info | coveralls
         - ./cc-test-reporter after-build --exit-code ${TRAVIS_TEST_RESULT}