How can I make the exception of Chai.js include stack trace info?

Question

How can I make the exception of Chai.js include stack trace info?

I am using Chai.js on Node. The line console.log(e) where e is an exception thrown by Chai.js print something like expected a to be within 0..3. How can I make the exception of Chai.js include stack trace info?

node.js
exception
stack-trace
chai

Answer 1

I found the answer. I can config chai to enable stack trace. Here's the code on assertion styles page of chai.

var chai = require('chai');
chai.Assertion.includeStack = true; // defaults to false

Answer 2

I don't use Chai.JS. But if e is an Error object, you can use the property stack of the object to get the stack trace.

The core module "util" may also help you : http://nodejs.org/api/util.html