Adding Mocha within Gobble

[joshbedo]

Is there a way to run mocha tests within Gobble? So a build would re-run tests when changes happened.

[evs-chris]

There isn't really a straightforward built-in way to do that right now, but that is a feature that's being looked into. See #31. That's on my short list of things to do once I get some breathing room, and I think a test runner of some sort would be one of the first transforms to get added.

You can accomplish this now by writing a transform that runs the tests and bails if the tests fail. Then for your final target, gobble the test step as well. Roughly:

var src = gobble('sources').transform('compile-or-whatever');
// test can affect the build, but it doesn't pass any of its files on - only gets run when src or 'tests' changes
var test = gobble([src, gobble('tests')]).transform((indir, outdir, options, done) => {
  var mocha = new Mocha({ ... });
  return this.sander.lsr(indir, 'tests').then(files => files.forEach(f => mocha.addFile(f))).then(() => {
    mocha.run(errs => if (errs > 0) throw new Error('Tests failed'))
  });
});
module.exports = gobble([src, test]);

[IvanSanchez]

Closing because https://github.com/Victorystick/gobble-mocha