fix shellcheck under CI

.travis.yml

@@ -14,6 +14,7 @@ addons:
   apt:
     packages:
       - xvfb
+      - shellcheck
 
 cache:
   directories:
@@ -26,6 +27,7 @@ install:
   - if [ "$TRAVIS_OS_NAME" == 'osx' ]; then brew update; brew cleanup; brew cask cleanup; fi
   - if [ "$TRAVIS_OS_NAME" == 'osx' ]; then brew uninstall --force brew-cask; brew update; fi
   - if [ "$TRAVIS_OS_NAME" == 'osx' ]; then brew cask install --force google-chrome; fi
+  - if [ "$TRAVIS_OS_NAME" == 'osx' ]; then brew install shellcheck; fi
 
   - if [ "$TRAVIS_OS_NAME" == 'linux' ]; then export DISPLAY=':99.0'; fi
   - if [ "$TRAVIS_OS_NAME" == 'linux' ]; then sh -e /etc/init.d/xvfb start; fi

appveyor.yml

@@ -11,13 +11,15 @@ install:
   # Get the latest stable version of Node.js or io.js
   - ps: Install-Product node $env:nodejs_version
   # install modules
-  - npm --progress false --loglevel warn install
+  - npm --progress=false --loglevel=warn install
 
 # Post-install test scripts.
 test_script:
   - node --version
   - npm --version
-  - npm test
+  - npm run eslint
+  - npm run tslint
+  - npm run test:chrome
 
 # Don't actually build.
 build: off

circle.yml

@@ -2,6 +2,9 @@ machine:
   services:
   - docker
 
+dependencies:
+  pre:
+    - sudo apt-get update; sudo apt-get install shellcheck
 test:
   override:
   - docker info