TDD

The TDD interface provides suite(), test(), suiteSetup(), suiteTeardown(), setup(), and teardown():

suite("Array", function () {
  setup(function () {
    // ...
  });

  suite("#indexOf()", function () {
    test("should return -1 when not present", function () {
      assert.equal(-1, [1, 2, 3].indexOf(4));
    });
  });
});