cli-test.coffee

#  # index.js
# var hello = require('./hello.coffee')
# console.log(hello());


assert = require 'power-assert'
exec = require('child_process').exec

cmd = 'node index.js'


describe 'testcli', ->

  it 'index.js should return hello world!', ->
    exec cmd, (err, stdout, stderr)->
      assert stdout == "hello!\n"
      done()

log

wallaby.js started
core v1.0.91
Finished executing 2 affected test(s)
Runtime error: TypeError: Cannot read property '5' of undefined
    at /Users/actor2019/Library/Caches/WebStorm10/wallaby/projects/56802b04120d620f/instrumented/test/clitest.js:18:21
    at ChildProcess.exithandler (child_process.js:723:5)
    at emitTwo (events.js:87:13)
    at ChildProcess.emit (events.js:169:7)
    at maybeClose (child_process.js:984:16)
    at Socket.<anonymous> (child_process.js:1153:11)
    at emitOne (events.js:77:13)
    at Socket.emit (events.js:166:7)

wallaby.js

module.exports = function () {
  return {
    "files": [
      "src/*.coffee",
      "*.js",
      "*.coffee"
    ],

    "tests": [
      "test/*.coffee"
    ],

    env: {
      // use 'node' type to use node.js or io.js
      type: 'node',

      // if runner property is not set, then wallaby.js embedded node/io.js version is used
      // you can specifically set the node version by specifying 'node' (or any other command)
      // that resolves your default node version or just specify the path
      // your node installation, like

      // runner: 'node'
      // or
      // runner: 'path to the desired node version'

      params: {
        // node flags
        runner: '--harmony --harmony_arrow_functions',
        // env vars
        env: 'PARAM1=true;PARAM2=false'
      }
    }
  };
};