mocha-multi

A bit of a hack to get multiple reporters working with mocha

Usage

npm install mocha-multi --save-dev
mocha --reporter mocha-multi

Choosing Reporters

For both methods below, the special value of - (hyphen) for destination uses normal stdout/stderr.

With the multi Environment Variable

Set the environment variable multi to whitespace-separated type=destination pairs.

multi='dot=- xunit=file.xml doc=docs.html' mocha -R mocha-multi

With --reporter-options

Pass --reporter-options with comma-separated type=destination pairs.

mocha -R mocha-multi --reporter-options dot=-,xunit=file.xml,doc=docs.html

From a file

Using either of the above methods, include a type=destination pair where the type is mocha-multi and the destination is a filename, e.g. mocha-multi=mocha-multi-reporters.json

More reporters will be loaded from the named file, which must be valid JSON in the same data format described below for passing reporterOptions to Mocha programmatically.

Using mocha-multi programmatically

You may specify the desired reporters (and their options) by passing reporterOptions to the Mocha contructor.

For example: the following config is the equivalent of setting multi='spec=- Progress=/tmp/mocha-multi.Progress.out', with the addition of passing the verbose: true option to the Progress reporter.

var reporterOptions = {
        Progress: {
                stdout: "/tmp/mocha-multi.Progress.out",
                options: {
                        verbose: true
                }
        },
        spec: "-"
};

var mocha = new Mocha({
    ui: "bdd"
    reporter: "mocha-multi",
    reporterOptions: reporterOptions
});
mocha.addFile("test/dummy-spec.js");
mocha.run(function onRun(failures){
    console.log(failures);
});

The options will be passed as the second argument to the reporter constructor.

How it works

A big hack that keeps changing the value of process.stdout and process.stderr whenever a reporter is doing its thing.

Seriously?

Yeah, Sorry!

All the hacks

This is very hacky, specifically:

Could this be a bit less hacky?

TODO

HISTORY

1.0.0 (unreleased)

The breaking changes are mostly around internals, and shouldn't affect most people.