Mocha in the browser: How to get a report using chai.assert

Mocha in the browser: How to get a report using chai.assert

I can't get Mocha to produce output when using chai.assert.
http://jsfiddle.net/web5me/244PT/6/
var assert = chai.assert();
mocha.setup('bdd');
describe('Kata', function() {
it('should return...', function() {
assert.equal(true, true, 'Truthy values should be treated equal.');
});
});
mocha.run();
It works perfectly with chai.should and chai.expect.
http://jsfiddle.net/web5me/244PT/#base