rafa/test/unit/core/Channel-next.js

Rafa.js is a Javascript framework for building concurrent applications.

module.exports = (assert, Rafa) => {
  suite("next", () => {
    test("throws if callback defined", () => {
      var l = Rafa.channel();
      l.callback = Rafa.noop;
      assert.throws(() => l.next(Rafa.noop));
    });

    test("calls callback immediately if queue is not empty", () => {
      var l = Rafa.channel(1);
      var value;
      var callback = m => value = m.value;
      l.write(1);
      l.next(callback);
      assert.equal(value, 1);
      assert.equal(l.buffer.length, 0);
      assert.isNull(l.callback);
    });

  });
};