public async Task StartAndEndAreAlwaysRaised()
{
var runOrder = new List <string>();
var task = new ActionTask(Token, _ => { throw new Exception(); })
.Finally((s, d) => { });
task.OnStart += _ => runOrder.Add("start");
task.OnEnd += _ => runOrder.Add("end");
await task.StartAsAsyncWithoutThrowing();
CollectionAssert.AreEqual(new string[] { "start", "end" }, runOrder);
}
public async Task Inlining()
{
var runOrder = new List <string>();
var act = new ActionTask(Token, _ => runOrder.Add($"started"))
.Then(TaskEx.FromResult(1), TaskAffinity.Exclusive)
.Then((_, n) => n + 1)
.Then((_, n) => runOrder.Add(n.ToString()))
.Then(TaskEx.FromResult(20f), TaskAffinity.Exclusive)
.Then((_, n) => n + 1)
.Then((_, n) => runOrder.Add(n.ToString()))
.Finally((_, t) => runOrder.Add("done"))
;
await act.StartAsAsyncWithoutThrowing();
CollectionAssert.AreEqual(new string[] { "started", "2", "21", "done" }, runOrder);
}
public async Task CanWrapATask()
{
var uiThread = 0;
await new ActionTask(Token, _ => uiThread = Thread.CurrentThread.ManagedThreadId)
{
Affinity = TaskAffinity.UI
}
.StartAsAsyncWithoutThrowing();
var runOrder = new List <string>();
var task = new Task(() => runOrder.Add($"ran {Thread.CurrentThread.ManagedThreadId}"));
var act = new ActionTask(task)
{
Affinity = TaskAffinity.UI
};
await act.StartAsAsyncWithoutThrowing();
CollectionAssert.AreEqual(new string[] { $"ran {uiThread}" }, runOrder);
}
public async Task ContinueAfterException()
{
var runOrder = new List <string>();
var exceptions = new List <Exception>();
var task = new ActionTask(Token, _ => { throw new InvalidOperationException(); })
.Catch(e => { runOrder.Add("1"); exceptions.Add(e); return(true); })
.Then(_ => { throw new InvalidCastException(); })
.Catch(e => { runOrder.Add("2"); exceptions.Add(e); return(true); })
.Then(_ => { throw new ArgumentNullException(); })
.Catch(e => { runOrder.Add("3"); exceptions.Add(e); return(true); })
.Finally((s, e) => { });
await task.StartAsAsyncWithoutThrowing();
CollectionAssert.AreEqual(
new string[] { typeof(InvalidOperationException).Name, typeof(InvalidCastException).Name, typeof(ArgumentNullException).Name },
exceptions.Select(x => x.GetType().Name).ToArray());
CollectionAssert.AreEqual(
new string[] { "1", "2", "3" },
runOrder);
}