Unit Test Examples

Could you provide some unit test examples or a pattern for using a framework like chai? I am using the Meteor Chef's Base template, and I am trying to extend [this file](https://github.com/themeteorchef/base/blob/master/imports/api/documents/methods.tests.js) to include a test for when the insertDocument.call() function fails validation and throws an Error.

I have tried a ton of different things, but I can't seem to get it to work. Could you provide some sample code for that?

Start with imports/api/documents/methods.tests.js from the linked Meteor Chef Base template and review how insertDocument.call() is currently tested. Add a clear example or pattern for testing the validation failure that throws an Error, using the requested framework style where appropriate. Done means the example shows the failure assertion and can be used to extend that test file.

Written by the indexing model from the issue text.