public void UnsyncedWillThrow()
{
var fsm = new FileEventStateMachine();
Assert.Throws <ArgumentOutOfRangeException> (() => fsm.Set("a", 0, 0, false, FileState.Removed));
// Add a busted FileEventData
var eventData = new FileEventData {
Kind = EventDataKind.Changed,
Args = new FileEventArgs(),
};
Assert.Throws <ArgumentOutOfRangeException> (() => fsm.Set("a", 0, 0, false, FileState.Removed));
}
public void AddAndRemove()
{
var fsm = new FileEventStateMachine();
var eventData = new FileEventData {
Kind = EventDataKind.Changed,
Args = new FileEventArgs("a", false),
};
fsm.Queue(eventData);
fsm.Set("a", 0, 0, false, FileState.Removed);
fsm.RemoveLastEventData("a");
Assert.IsFalse(fsm.TryGet("a", out var state));
fsm.RemoveLastEventData("a");
Assert.IsFalse(fsm.TryGet("a", out state));
}
public void Functionality()
{
var fsm = new FileEventStateMachine();
FilePath a = "a", b = "b", c = "c";
var eventData = new FileEventData {
Kind = EventDataKind.Changed,
Args = new FileEventArgs(new [] { a, b, c }, false),
};
fsm.Queue(eventData);
Assert.AreEqual(false, fsm.TryGet(a, out var state));
fsm.Set(a, 0, 0, false, FileState.Changed);
fsm.Set(b, 0, 1, false, FileState.Changed);
fsm.Set(c, 0, 2, false, FileState.Changed);
Assert.AreEqual(true, fsm.TryGet(a, out state));
AssertState(state, FileState.Changed, 1, 0, 0);
Assert.AreEqual(true, fsm.TryGet(b, out state));
AssertState(state, FileState.Changed, 1, 0, 1);
Assert.AreEqual(true, fsm.TryGet(c, out state));
AssertState(state, FileState.Changed, 1, 0, 2);
eventData = new FileEventData {
Kind = EventDataKind.Removed,
Args = new FileEventArgs(new [] { b, a, c }, false),
};
fsm.Queue(eventData);
fsm.Set(a, 1, 1, false, FileState.Removed);
fsm.Set(b, 1, 0, false, FileState.Removed);
fsm.Set(c, 1, 2, false, FileState.Removed);
Assert.AreEqual(true, fsm.TryGet(a, out state));
AssertState(state, FileState.Removed, 2, 1, 1);
Assert.AreEqual(true, fsm.TryGet(b, out state));
AssertState(state, FileState.Removed, 2, 1, 0);
Assert.AreEqual(true, fsm.TryGet(c, out state));
AssertState(state, FileState.Removed, 2, 1, 2);
fsm.RemoveLastEventData(c);
Assert.AreEqual(true, fsm.TryGet(a, out state));
AssertState(state, FileState.Removed, 2, 1, 1);
Assert.AreEqual(true, fsm.TryGet(b, out state));
AssertState(state, FileState.Removed, 2, 1, 0);
Assert.AreEqual(true, fsm.TryGet(c, out state));
AssertState(state, FileState.Changed, 1, 0, 2);
fsm.RemoveLastEventData(c);
Assert.AreEqual(false, fsm.TryGet(c, out state));
Assert.IsNull(state);
void AssertState(FileEventState s, FileState fs, int count, int eventIndex, int fileIndex)
{
Assert.AreEqual(fs, state.FinalState);
Assert.AreEqual(count, state.Indices.Count);
if (count == 0)
{
return;
}
Assert.AreEqual(eventIndex, state.Indices [count - 1].EventIndex);
Assert.AreEqual(fileIndex, state.Indices [count - 1].FileIndex);
}
}