Mocha's done() invoked with non-Error

[stevenvachon]

F("something").exists(done);

throws an error. Must we really do this instead?:

F("something").exists( function(){ done() } );

[daffl]

The easiest way is probably adding it to the chain individually:

F('something').exists('Something exists');
F(done);

[stevenvachon]

hmm, that looks kind of confusing, though

[daffl]

Well you could also

F('something').exists('Something exists').then(done);

What data is the F("something").exists(done); callback getting?

[stevenvachon]

It's a Mocha error with FuncUnit's argument data:

[Log] [ (func.js, line 14)
Object[1]
0: something
context: html
frame: Object
length: 1
prevObject: Object[1]
selector: "something"
__proto__: Object[0]
]

The same issue occurs with F("something").exists().then(done).

[daffl]

Maybe we can have @alexisabril look into this.

[stevenvachon]

It's possible that it's an issue in Mocha. I've opened this: mochajs/mocha#1187

[daffl]

I don't think it is. If you call it with done(something) and something is not falsy the first argument of a callback will count as an error (just like any other Node callback).