TinyUtil

TinyUtil is a tiny set of tiny utility functions for testing Meteor packages with Meteor's Tinytest. It is intended for use with peterellisjones:describe.

swap

Emulates the use of beforeEach and afterEach methods of a test class to set up and tear down a property of an object. Useful for mocking values that only persist for the duration of the test.

describe "MyClassUnderTest", ->
  # Wrapper that creates a temporary instance of `MyClassUnderTest` and attaches it to each wrapped
  # test function under the `obj` property.
  wrapped = swap @, 'obj', -> new MyClassUnderTest
  
  it "can do the foo", wrapped (test) ->
    test.isTrue @obj.foo()