gulp-electron-mocha

gulp-electron-mocha

Run client-side Mocha tests in Electron

This is a simple wrapper for electron-mocha.

The implementations are mostly inspired by gulp-mocha-phantomjs.

Install

npm install --save-dev gulp-electron-mocha

Note that you don't have to install neither electron-mocha nor electron-prebuilt globally (i.e. with npm i -g). All dependencies are resolved automatically.

Basic Usage

import gulp from 'gulp';
import electronMocha from 'gulp-electron-mocha';

gulp.task('test', () =>
  gulp.src('./test', { read: false })
    .pipe(electronMocha())
);

Please be aware that you should write gulp.src('./test'), not gulp.src('./test/*.js'), because electron-mocha requires a directory to test.

You can find working tests in gulpfile.babel.js and spec/electronMocha.

Passing additional options to electron-mocha

The electronMocha property of the optional argument to electronMocha() is passed to electron-mocha.

See electron-mocha's docs to know what parameters are available.

gulp-electron-mocha uses object-to-spawn-args to convert from JavaScript object to command-line argument string.

import gulp from 'gulp';
import electronMocha from 'gulp-electron-mocha';

gulp.task('test', () =>
  gulp.src('./test', { read: false })
    .pipe(electronMocha({
      electronMocha: {
        renderer: true,
        'no-timeout': true,
      },
    }))
);

Running ES6 tests

gulp-electron-mocha can pass --compilers option to Mocha (which is not available in gulp-mocha :/). So just specify babel-core/register.

You want to assert with power-assert? Use espower-babel/guess!

gulp.src('./test', { read: false })
  .pipe(electronMocha({
    electronMocha: {
      renderer: true,
      compilers: 'js:espower-babel/guess',
      'no-timeout': true,
    },
  }))

API

electronMocha([options])

options

• electronPath

  Type	Default
  string	undefined

  A path to Electron in which test are executed. If not specified, use Electron in node_modules instead.

• silent

  Type	Default
  bool	false

  Don't throw an error even if a test is failed.

• suppressStdout

  Type	Default
  bool	false

  Don't redirect electron-mocha's stdout to the console.

• suppressStderr

  Type	Default
  bool	false

  Don't redirect electron-mocha's stderr to the console.

• electronMocha

  Type	Default
  Object	{}

  Options to be passed to electron-mocha. See electron-mocha's docs for more details.

  The value will be converted to command-line argument string with object-to-spawn-args.

  For example, if you want to pass --no-timeout --renderder -s 200 --compilers js:babel-core/register, specify:

  electronMocha: {
    'no-timeout': true,
    renderder: true,
    s: 200,
    compilers: 'js:babel-core/register',
  }
  

Events

This plugin emits electronMochaStdoutData, electronMochaStdoutEnd, electronMochaStderrData, electronMochaStderrEnd, electronMochaError, electronMochaExit, which are implemented by the following code:

electronMocha.stdout.on('data', stream.emit.bind(stream, 'electronMochaStdoutData'));
electronMocha.stdout.on('end', stream.emit.bind(stream, 'electronMochaStdoutEnd'));

electronMocha.stderr.on('data', stream.emit.bind(stream, 'electronMochaStderrData'));
electronMocha.stderr.on('end', stream.emit.bind(stream, 'electronMochaStderrEnd'));

electronMocha.on('error', stream.emit.bind(stream, 'electronMochaError'));
electronMocha.on('exit', stream.emit.bind(stream, 'electronMochaExit'));

License

MIT License