mocha-plugin-co

A mocha plugin to enable generators (using co) support.

Installation

• npm install --save-dev mocha-plugin-co
• just add -r mocha-plugin-co in your mocha command line script

# example npm scripts
{
 "scripts" : {
    "mocha": "node node_modules/mocha/bin/_mocha -r mocha-plugin-co",
    "coverage": "node node_modules/istanbul/lib/cli.js cover node_modules/mocha/bin/_mocha -- -r mocha-plugin-co"
  }
}

Usage (nothing fancy)

describe("sometest", function() {
  it("should do stuff", function*() {
    var start = Date.now();
    yield sleep(1000);
    expect(Date.now() - start).to.eql(1000);
  });

  it("does not change classical usage", function(done) {
    setTimeout(done, 2000);
    console.log("All good");
  });
});

How It Works

The module monkey patches the Runnable.prototype.run method of mocha to enable generators. In contrast to other npm packages, this is a plugin and extends mocha at runtime - allowing you to use any compatible mocha version.

License

MIT

Related/see also

• mocha-co : mocha fork with co support
• co-mocha : same as this module, with some limitation (no support for errors, bigger fingerprint, disctinction between generator & non-generators in execution)

Credits

• 131
• blakeembrey for co-mocha