TypeError: Cannot read property 'setUp' of undefined

So I’m looking at Caolan Mcmahon’s Tutorial Adding the following code causes the title error

    console.log = function (str) {
        test.equal(str, 'doubled: 24');
    };

The problem line is test.equal(str, 'doubled: 24');.

[shadowmint]

For anyone else who finds this, ‘when callbacks are hit multiple times or in odd ways’ probably means; if you have multiple callbacks that invoke test.done() asynchronously.

For example:

  // Exact match
  {
    var query = store.query('value').only('1');
    store.collect(query).then((records) => {
      test.equals(records.length(), 2);
      test.equals(records.all()[0].value, '1');
      test.equals(records.all()[1].value, '1');
      test.done();
    });
  }

  // Upper bound
  {
    var query = store.query('value').upperBound('1');
    store.collect(query).then((records) => {
      console.log('Items?', records.all());
      test.equals(records.length(), 2);
      test.equals(records.all()[0].value, '1');
      test.equals(records.all()[1].value, '1');
      test.done(); // <--- woops! This should be a separate test...
    });
  }

Will sometimes trigger it, sometimes not depending on race conditions; you can resolve by ensuring that all the promises are resolved and then calling test.done(), not calling it multiple times.

(It would be very useful is test.done() error’d with a meaningful error message if it was called outside of a test scope)

[terryweiss]

I saw this issue today on a set of tests that had previously been working. In the event that this helps someone else, it was an issue with a badly formed callback. The error message is misleading. What I had done was something like this:

function A(callback){ // code… if (someCondition){ callback(); //<- problem here, should have been return callback() } callback(); }

Then in the test:

exports.myTest(test){ A(function(){ test.done() }) }

This issue is that test.done() was called twice due to that upstream callback being a problem. That second call to test.done() was causing nodeunit to look for a test that doesn’t exist and failing on the call to “group”. But it’s not clear from the error what is happening. I found it by using mocha to run the same test and it correctly reported “done() called more than once” which is what I think nodeunit needs to do.

t.