atom/spec/main-process/mocha-test-runner.js

const Mocha = require('mocha')
const fs = require('fs-plus')
const { assert } = require('chai')

module.exports = function (testPaths) {
  global.assert = assert

  let reporterOptions = {
    reporterEnabled: 'list'
  }

  if (process.env.TEST_JUNIT_XML_PATH) {
    reporterOptions = {
      reporterEnabled: 'list, mocha-junit-reporter',
      mochaJunitReporterReporterOptions: {
        mochaFile: process.env.TEST_JUNIT_XML_PATH
      }
    }
  }

  const mocha = new Mocha({
    reporter: 'mocha-multi-reporters',
    reporterOptions
  })

  for (let testPath of testPaths) {
    if (fs.isDirectorySync(testPath)) {
      for (let testFilePath of fs.listTreeSync(testPath)) {
        if (/\.test\.(coffee|js)$/.test(testFilePath)) {
          mocha.addFile(testFilePath)
        }
      }
    } else {
      mocha.addFile(testPath)
    }
  }

  mocha.run(failures => {
    if (failures === 0) {
      process.exit(0)
    } else {
      process.exit(1)
    }
  })
}