Tests succeed on rejected falsey promises

[djechlin]

Using Q, one of these two tests fails and the other one succeeds:

describe("mocha with promises", function() {
it("should fail on falsey rejected promises", function() {
    return q.reject(false);
});

it("should fail on truthy rejected promises", function() {
    return q.reject(true);
});
});

It appears that q.reject(x) where x is one of the six falsey values does not fail the test, whereas truthy values do.