public static async Task WhileMAsync2CancelTest()
{
var cts = new CancellationTokenSource();
cts.Cancel();
var xs = Task.FromResult(new Finite <int>(0).ToAsyncMonad());
var ret = (await xs.WhileMAsync(c => c > 0, c => Task.FromResult(new Finite <int>(c + 2).ToAsyncMonad()), cts.Token)).DownF();
Assert.Empty(ret.Value);
cts = new CancellationTokenSource();
cts.CancelAfter(750);
var body = new Finite <int>(2, 4);
xs = Task.FromResult(new Finite <int>(15, 2).ToAsyncMonad());
ret = (await xs.WhileMAsync(c => c > 0, c => Task.FromResult(body.Mutate(d => d + c).ToAsyncMonad()), cts.Token)).DownF();
Assert.Equal(new int[] { 17 }, ret.Value);
cts = new CancellationTokenSource();
cts.CancelAfter(1250);
body = new Finite <int>(2, 1);
xs = Task.FromResult(new Finite <int>(15, 3).ToAsyncMonad());
ret = (await xs.WhileMAsync(c => c > 0, c => Task.FromResult(body.Mutate(d => d + c).ToAsyncMonad()), cts.Token)).DownF();
Assert.Equal(new int[] { 17, 0 }, ret.Value);
}
public static async Task WhileMAsync2Test()
{
var xs = Task.FromResult(new Finite <int>(0).ToAsyncMonad());
var ret = (await xs.WhileMAsync(c => c > 0, c => Task.FromResult(new Finite <int>(c + 2).ToAsyncMonad()))).DownF();
Assert.Empty(ret.Value);
var body = new Finite <int>(2, 4);
xs = Task.FromResult(new Finite <int>(15, 2).ToAsyncMonad());
ret = (await xs.WhileMAsync(c => c > 0, c => Task.FromResult(body.Mutate(d => d + c).ToAsyncMonad()))).DownF();
Assert.Equal(new int[] { 17, 32 }, ret.Value);
body = new Finite <int>(2, 1);
xs = Task.FromResult(new Finite <int>(15, 3).ToAsyncMonad());
ret = (await xs.WhileMAsync(c => c > 0, c => Task.FromResult(body.Mutate(d => d + c).ToAsyncMonad()))).DownF();
Assert.Equal(new int[] { 17, 0, 0 }, ret.Value);
}