async-iter-ext 0.1.0

Async iterator methods and async methods for option and result.
Documentation 
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use std::time::Duration;

use async_iter_ext::AsyncResultTools;
use async_std::task::sleep;
use rstest::rstest;

#[derive(Debug, PartialEq)]
enum Error {
  Invalid,
}

#[rstest]
async fn test_result_is_ok_and_async(#[values(Some(1), None, Some(2))] value: Option<u32>) {
  let y = value.ok_or(Error::Invalid).is_ok_and(|val| val == 1);

  let ya = value
    .ok_or(Error::Invalid)
    .is_ok_and_async(|val| async move {
      sleep(Duration::from_millis(100)).await;
      val == 1
    })
    .await;

  assert_eq!(y, ya);
}

#[rstest]
async fn test_result_map_async(#[values(Some(1), None, Some(2))] value: Option<u32>) {
  let y = value.ok_or(Error::Invalid).map(|val| val + 1);
  let ya = value
    .ok_or(Error::Invalid)
    .map_async(|val| async move {
      sleep(Duration::from_millis(100)).await;
      val + 1
    })
    .await;

  assert_eq!(y, ya);
}