node.js - How can I dynamically generate test cases in javascript/node?

Question

The nose testing framework (for python) supports dynamically generating test cases at run-time (the following, from the documentation, results in five distinct test cases):

def test_evens():
    for i in range(0, 5):
        yield check_even, i, i*3

def check_even(n, nn):
    assert n % 2 == 0 or nn % 2 == 0

How can I achieve this result using javascript frameworks such as mocha or qunit? (I am not attached to any particular framework at this point.)

My use-case is writing a test runner to monitor several items on an external server. I would provide a list of resource URLs. Each test attempts to poll that resource and returns success or failure depending on what it finds. I have a prototype built in python (using nose) but would like to implement in node.js if I can. Eventually, this would be included in a CI setup.

Answer 1

Yes you can dynamically created test suites with cases using Mocha. I have installed mocha globally npm install -g mocha and I use should.

var should = require('should');

var foo = 'bar';

['nl', 'fr', 'de'].forEach(function(arrElement) {
  describe(arrElement + ' suite', function() {
    it('This thing should behave like this', function(done) {
      foo.should.be.a.String();
      done();
    });
    it('That thing should behave like that', function(done) {
      foo.should.have.length(3);
      done();
    });
  });
});