rafa/test/unit/core/Stream-fold.js

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

module.exports = (assert, Rafa) => {
  suite("fold", () => {
    test("sum", () => {
      var stream = Rafa.stream();
      var values = [];
      stream.fold(1, (a, b) => a + b)
        .each(v => values.push(v))
        .done(v => values.push(v));
      stream.enumerate(Rafa.Enumerator.array([1,2,3]));
      assert.equal(values.length, 2);
      assert.equal(values[0], 7);
    });
  });
};