如何在Nodeunit中显示完整的堆栈跟踪？

Question

How do I display a full stack trace when nodeunit catches errors? For example, my test is throwing:

✔ event delete - basic
✔ delete - errors
Fatal error: undefined is not a function

How do I get nodeunit to tell me where undefined is being called as a function?

Answer 1

The problem is with grunt-contrib-nodeunit: it modifies the raw nodeunit messages into something less useful. I've created an issue here .

In short, the code that I have produced output like this with grunt-contrib-nodeunit:

user@desktop:~/bug_test$ grunt
Running "nodeunit:all" (nodeunit) task

test.js
Fatal error: undefined is not a function

Plain nodeunit gives a more helpful error message:

user@desktop:~/bug_test$ nodeunit test.js 

test.js

FAILURES: Undone tests (or their setups/teardowns): 
- testSomethingElse

To fix this, make sure all tests call test.done()

And, as shown in the issue,when there is a stack to share grunt-contrib-nodeunit will, on occasion, hide it.

Note that the choice of reporter (grunt, default, or minimal) did not make a difference.

The solution is to always run your tests with nodeunit directly whenever you get a less than helpful error message. There may be new information.