gulp-mocha how to pass the compilers flag?

Question

I\'m trying to use the gulp-mocha module but can\'t figure out a good way to pass over the compilers flag. Is there a way to include this in my gulp task? Maybe in a separate

Answer 1

The top answer relies on using the require hook. This will only work in the current process, and not if you run Mocha tests in a separate process, as with gulp-spawn-mocha.

This is how you pass compilers into the mocha module:

    return mocha({
        compilers: [
            'js:babel-core/register',
        ]
    });

Mocha will loop through the elements of the compilers property and split on :. It will treat the string before it as the extensions to follow, and will inject everything after it into a require() statement.