public async IAsyncEnumerable <TaskResult <int> > EmitCounter(TrivialCounterTask t)
{
yield return(await t);
yield return(await t);
yield return(await new TrivialCounterSubTask(await t));
}
public async Task TaskCaching_Test()
{
var task = new TrivialCounterTask();
await foreach (var i in EmitCounter(task))
{
;
}
Assert.Equal(1, task.Counter);
}
public async Task TaskCaching_Test()
{
var task = new TrivialCounterTask();
await foreach (var i in EmitCounter(task))
{
;
}
// No matter how many times task is awaited, ExecuteOnce will only execute one time.
var taskResult = await task;
Assert.Equal(1, await taskResult);
Assert.Equal(1, await taskResult);
Assert.Equal(1, await taskResult);
Assert.Equal(1, await await task);
Assert.Equal(1, await await task);
Assert.Equal(1, await await task);
Assert.Equal(1, task.Counter);
}