How to use the ix/asynciterable.range function in ix

test('AsyncIterable#concat concatAll order of effects', async () => {
  let i = 0;
  const xss = range(0, 3).pipe(
    map(x => range(0, x + 1)),
    tap({ next: async () => ++i })
  );
  const res = xss.pipe(
    concatAll(),
    map(x => i + ' - ' + x)
  );

  expect(
    await sequenceEqual(res, of('1 - 0', '2 - 0', '2 - 1', '3 - 0', '3 - 1', '3 - 2'))
  ).toBeTruthy();
});

test('AsyncIterable#catch with no errors', async () => {
  const res = catchError(range(0, 5), range(5, 5));
  expect(await sequenceEqual(res, range(0, 5))).toBeTruthy();
});

test('AsyncIterable#catch with no errors', async () => {
  const res = catchError(range(0, 5), range(5, 5));
  expect(await sequenceEqual(res, range(0, 5))).toBeTruthy();
});