public void DispatchIndeterminateTest()
{
var uiDispatcher = new MockUiDispatcher();
var manager = new BackgroundTaskManager(uiDispatcher);
var countdown = new CountdownEvent(4);
var state = "State";
manager.TaskStarted += (t, s) =>
{
Assert.IsTrue(t.IsIndeterminate);
Assert.AreEqual(s, state);
Assert.AreEqual(uiDispatcher.ThreadId, Thread.CurrentThread.ManagedThreadId);
Assert.AreEqual(4, countdown.CurrentCount);
countdown.Signal();
};
manager.TaskCompleted += (t, s) =>
{
Assert.IsTrue(t.IsIndeterminate);
Assert.AreEqual(s, state);
Assert.AreEqual(uiDispatcher.ThreadId, Thread.CurrentThread.ManagedThreadId);
Assert.AreEqual(1, countdown.CurrentCount);
countdown.Signal();
};
manager.Dispatch(s =>
{
Assert.AreEqual(state, s);
Assert.AreNotEqual(uiDispatcher.ThreadId, Thread.CurrentThread.ManagedThreadId);
Assert.AreEqual(3, countdown.CurrentCount);
countdown.Signal();
return("Result");
}, (r, s) =>
{
Assert.AreEqual("Result", r);
Assert.AreEqual(uiDispatcher.ThreadId, Thread.CurrentThread.ManagedThreadId);
Assert.AreEqual(2, countdown.CurrentCount);
countdown.Signal();
}, state);
Assert.IsTrue(countdown.Wait(5000));
}
public void DispatchAndReportTest()
{
var uiDispatcher = new MockUiDispatcher();
var manager = new BackgroundTaskManager(uiDispatcher);
const int steps = 10;
var countdown = new CountdownEvent(4 + steps);
var state = "State";
manager.TaskStarted += (t, s) =>
{
Assert.IsFalse(t.IsIndeterminate);
Assert.AreEqual(s, state);
Assert.AreEqual(uiDispatcher.ThreadId, Thread.CurrentThread.ManagedThreadId);
Assert.AreEqual(4 + steps, countdown.CurrentCount);
countdown.Signal();
};
manager.ReportStateChanged += (p, s) =>
{
Assert.AreEqual(p + " %", s);
Assert.AreEqual(uiDispatcher.ThreadId, Thread.CurrentThread.ManagedThreadId);
Assert.AreEqual(3 + steps - p / steps, countdown.CurrentCount);
countdown.Signal();
};
manager.TaskCompleted += (t, s) =>
{
Assert.IsFalse(t.IsIndeterminate);
Assert.AreEqual(s, state);
Assert.AreEqual(uiDispatcher.ThreadId, Thread.CurrentThread.ManagedThreadId);
Assert.AreEqual(1, countdown.CurrentCount);
countdown.Signal();
};
manager.Dispatch((t, s) =>
{
Assert.AreEqual(state, s);
Assert.AreNotEqual(uiDispatcher.ThreadId, Thread.CurrentThread.ManagedThreadId);
for (var i = 0; i < steps; i++)
{
t.ReportState(i * 10, (i * 10) + " %");
Thread.Sleep(10);
}
Assert.AreEqual(3, countdown.CurrentCount);
countdown.Signal();
return("Result");
}, (r, s) =>
{
Assert.AreEqual("Result", r);
Assert.AreEqual(uiDispatcher.ThreadId, Thread.CurrentThread.ManagedThreadId);
Assert.AreEqual(2, countdown.CurrentCount);
countdown.Signal();
}, state);
Assert.IsTrue(countdown.Wait(5000));
}