gulpfile.js

var gulp = require('gulp')
var mocha = require('gulp-mocha')
var cucumber = require('gulp-cucumber')
var fs = require('fs')
var childProcess = require('child_process')

var files = {
  specs: ['spec/**/*_spec.js'],
  sources: [
    '*.js',
    'bms/*.js',
    'compiler/*.js',
    'keysounds/*.js',
    'notes/*.js',
    'reader/*.js',
    'song-info/*.js',
    'speedcore/*.js',
    'time-signatures/*.js',
    'timing/*.js',
    'util/*.js',
  ],
  get features() {
    var home = process.env.BMSPEC_HOME || './bmspec'
    if (home === undefined) {
      console.error(
        'WARNING! BMSPEC_HOME is not set. BMSpec test suites will not be run!'
      )
      return []
    }
    return require('./features').map(function(file) {
      var filePath = home + '/features/' + file
      if (!fs.existsSync(filePath)) {
        console.error('WARNING! ' + filePath + ' does not exist.')
      }
      return filePath
    })
  },
}

gulp.task('test', function(callback) {
  return mochaThenCucumberTest(callback)
})

gulp.task('test:cucumber', function(callback) {
  return cucumberTest(callback)
})

gulp.task('test:mocha', function(callback) {
  return mochaTest(callback)
})

gulp.task('bmspec:update', async function() {
  if (!fs.existsSync('bmspec')) {
    console.log('* Cloning bmspec...')
    childProcess.execSync(
      `git clone https://github.com/bemusic/bms-spec.git bmspec`,
      {
        stdio: 'inherit',
      }
    )
  } else {
    console.log('* Updating bmspec...')
    childProcess.execSync(`git pull`, {
      stdio: 'inherit',
    })
  }
})

function mochaTest(callback) {
  global.expect = require('chai').expect
  gulp
    .src(files.specs, { read: false })
    .pipe(mocha({ reporter: 'nyan' }))
    .on('end', callback)
    .on('error', callback)
}

function cucumberTest(callback) {
  gulp
    .src(files.features, { read: false })
    .pipe(
      cucumber({
        steps: 'features/step_definitions/**/*_steps.js',
        support: ['features/support/world.js', 'features/support/*.js'],
      })
    )
    .on('end', callback)
    .on('error', callback)
}

function mochaThenCucumberTest(callback) {
  mochaTest(function(error) {
    if (error) return callback(error)
    cucumberTest(callback)
  })
}