How can I dynamically generate test cases in javas

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

I like @rob3c's answer, but tried to simplify it a bit:

describe("Master test suite", function () {
  before(async function () {
    const rows = await mySQLQuery();

    describe(`Testing ${rows.length} rows`, function () {
      rows.forEach(function (row, index) {
        it(`Test row ${index}`, async function() {
          console.log("your row assertions go here")
        });
      });
    });
  });


  it("stub", async function(){})  // this is important!
});