public void Caching() => TestZone.Run(tick =>
{
var random = new Random();
var atom = Atom.Computed(() => random.Next(), keepAlive: true);
Assert.AreEqual(atom.Value, atom.Value);
});
public void NoReactivationDuringPulling() => TestZone.Run(tick =>
{
var activation = "";
var activationSource = Atom.Computed(
pull: () => 1,
onActive: () => activation += "A",
onInactive: () => activation += "D");
var modifiedSource = Atom.Value(1);
var listener = Atom.Computed(() => activationSource.Value + modifiedSource.Value);
Assert.AreEqual("", activation);
var autoRun = Atom.AutoRun(() => listener.Get());
Assert.AreEqual("A", activation);
modifiedSource.Value = 2;
Assert.AreEqual("A", activation);
tick(0);
Assert.AreEqual("A", activation);
autoRun.Dispose();
});
public void Deactivation() => TestZone.Run(tick =>
{
var activation = "";
var source = Atom.Value(
0,
onActive: () => activation += "S",
onInactive: () => activation += "s");
var middle = Atom.Computed(
() => source.Value + 1,
onActive: () => activation += "M",
onInactive: () => activation += "m");
var target = Atom.Computed(
() => middle.Value + 1,
onActive: () => activation += "T",
onInactive: () => activation += "t");
target.Get();
Assert.AreEqual("", activation);
var autoRun = Atom.AutoRun(() => target.Get());
Assert.AreEqual("TMS", activation);
autoRun.Dispose();
Assert.AreEqual("TMS", activation);
tick(0);
Assert.AreEqual("TMStms", activation);
});
public void ObsoleteAtomsActualizedInInitialOrder() => TestZone.Run(tick =>
{
var actualization = "";
var source = Atom.Value(1);
var middle = Atom.Computed(() =>
{
actualization += "M";
return(source.Value);
});
var target = Atom.Computed(() =>
{
actualization += "T";
source.Get();
return(middle.Value);
});
var autoRun = Atom.AutoRun(() => target.Get());
Assert.AreEqual("TM", actualization);
source.Value = 2;
tick(0);
Assert.AreEqual("TMTM", actualization);
autoRun.Dispose();
});
public void ThrowException() => TestZone.Run(tick =>
{
var source = Atom.Value(0);
var exception = new Exception();
var middle = Atom.Computed(() =>
{
if (source.Value == 0)
{
throw exception;
}
return(source.Value + 1);
});
var stack = new Stack <Exception>();
var reaction = new ReactionAtom(
reaction: () => middle.Get(),
exceptionHandler: ex => stack.Push(ex));
reaction.Get();
Assert.AreEqual(1, stack.Count);
Assert.AreEqual(exception, stack.Peek());
Assert.Throws <Exception>(() => middle.Get());
source.Value = 1;
tick(0);
Assert.AreEqual(2, middle.Value);
});
public void Lazy() => TestZone.Run(tick =>
{
var value = 0;
var atom = Atom.Computed(() => value = 1);
tick(0f);
Assert.AreEqual(0, value);
atom.Get();
Assert.AreEqual(1, value);
});
public void InstantActualization() => TestZone.Run(tick =>
{
var source = Atom.Value(1);
var middle = Atom.Computed(() => source.Value + 1);
var target = Atom.Computed(() => middle.Value + 1);
Assert.AreEqual(3, target.Value);
source.Value = 2;
Assert.AreEqual(4, target.Value);
});
public void NoSubscribed() => TestZone.Run(tick =>
{
var source = Atom.Value(1);
var middle = Atom.Computed(() => source.Value + 1);
var target = Atom.Computed(() => middle.Value + source.Value);
Assert.AreEqual(3, target.Value);
Assert.AreEqual(0, source.SubscribersCount());
Assert.AreEqual(0, middle.SubscribersCount());
Assert.AreEqual(0, target.SubscribersCount());
});
public void SettingEqualStateAreIgnored() => TestZone.Run(tick =>
{
var atom = Atom.Value(new[] { 1, 2, 3 },
comparer: new TestComparer <int[]>((a, b) => a.SequenceEqual(b)));
var v1 = atom.Value;
var v2 = new[] { 1, 2, 3 };
atom.Value = v2;
var v3 = atom.Value;
Assert.IsTrue(ReferenceEquals(v1, v3));
Assert.IsFalse(ReferenceEquals(v2, v3));
});
public void AtomicDeferredRestart() => TestZone.Run(tick =>
{
int targetValue = 0;
var source = Atom.Value(1);
var middle = Atom.Computed(() => source.Value + 1);
var target = Atom.Computed(() => targetValue = middle.Value + 1, keepAlive: true);
target.Get();
Assert.AreEqual(3, targetValue);
source.Value = 2;
Assert.AreEqual(3, targetValue);
tick(0);
Assert.AreEqual(4, targetValue);
});
public void ManualActivation() => TestZone.Run(tick =>
{
var activation = "";
var atom = Atom.Computed(
pull: () => 1,
keepAlive: true,
onActive: () => activation += "A",
onInactive: () => activation += "D");
Assert.AreEqual("", activation);
atom.Get();
Assert.AreEqual("A", activation);
atom.Deactivate();
Assert.AreEqual("AD", activation);
});
public void AutoUnsubscribed_Reaction() => TestZone.Run(tick =>
{
var source = Atom.Value(1);
var middle = Atom.Computed(() => source.Value + 1);
var target = Atom.Computed(() => middle.Value + source.Value);
var run = Atom.AutoRun(() => target.Get());
Assert.AreEqual(2, source.SubscribersCount());
Assert.AreEqual(1, middle.SubscribersCount());
Assert.AreEqual(1, target.SubscribersCount());
run.Dispose();
tick(0);
Assert.AreEqual(0, source.SubscribersCount());
Assert.AreEqual(0, middle.SubscribersCount());
Assert.AreEqual(0, target.SubscribersCount());
});
public void NoActivationWithoutSubscribers() => TestZone.Run(tick =>
{
var runs = "";
var activation = "";
var atom = Atom.Computed(
pull: () =>
{
runs += "R";
return(1);
},
onActive: () => activation += "A",
onInactive: () => activation += "D");
atom.Get();
atom.Get();
atom.Get();
Assert.AreEqual("RRR", runs);
Assert.AreEqual("", activation);
});
public void DoNotActualizeWhenMastersNotChanged() => TestZone.Run(tick =>
{
var targetUpdates = 0;
var source = Atom.Value(1);
var middle = Atom.Computed(() => Math.Abs(source.Value));
var target = Atom.Computed(() =>
{
++targetUpdates;
return(middle.Value);
}, keepAlive: true);
target.Get();
Assert.AreEqual(1, target.Value);
source.Set(-1);
target.Get();
Assert.AreEqual(1, targetUpdates);
});
public void NoReactivationDuringModification() => TestZone.Run(tick =>
{
var activation = "";
var atom = Atom.Value(1,
onActive: () => activation += "A",
onInactive: () => activation += "D");
Assert.AreEqual("", activation);
var autoRun = Atom.AutoRun(() => atom.Get());
Assert.AreEqual("A", activation);
atom.Value = 2;
Assert.AreEqual("A", activation);
tick(0);
Assert.AreEqual("A", activation);
autoRun.Dispose();
});
public void AutoUnsubscribed_MultiReaction() => TestZone.Run(tick =>
{
var source = Atom.Value(1);
var middle = Atom.Computed(() => source.Value + 1);
var target1 = Atom.Computed(() => middle.Value + 1);
var target2 = Atom.Computed(() => middle.Value + 1);
var run1 = Atom.AutoRun(() => target1.Get());
var run2 = Atom.AutoRun(() => target2.Get());
Assert.AreEqual(2, middle.SubscribersCount());
run1.Dispose();
tick(0);
Assert.AreEqual(1, middle.SubscribersCount());
run2.Dispose();
tick(0);
Assert.AreEqual(0, middle.SubscribersCount());
});
public void AutoActivation() => TestZone.Run(tick =>
{
var activation = "";
var atom = Atom.Computed(
pull: () => 1,
onActive: () => activation += "A",
onInactive: () => activation += "D");
var listener = Atom.Computed(() => atom.Value + 1, keepAlive: true);
Assert.AreEqual("", activation);
listener.Get();
Assert.AreEqual("A", activation);
listener.Deactivate();
Assert.AreEqual("A", activation);
tick(0);
Assert.AreEqual("AD", activation);
});
public void AutoRun() => TestZone.Run(tick =>
{
var source = Atom.Value(0);
int runs = 0;
var disposer = Atom.AutoRun(() =>
{
source.Get();
++runs;
});
Assert.AreEqual(1, runs);
source.Value++;
tick(0);
Assert.AreEqual(2, runs);
disposer.Dispose();
source.Value++;
tick(0);
Assert.AreEqual(2, runs);
});
public void WhenAtom() => TestZone.Run(tick =>
{
var source = Atom.Value(0);
string watch = "";
Atom.When(() => source.Value > 1, () => watch += "B");
tick(0);
Assert.AreEqual("", watch);
source.Value = 1;
tick(0);
Assert.AreEqual("", watch);
source.Value = 2;
tick(0);
Assert.AreEqual("B", watch);
source.Value = 3;
tick(0);
Assert.AreEqual("B", watch);
});
public void Invalidate() => TestZone.Run(tick =>
{
//
var source = Atom.Value(0);
string actualization = "";
var dispose = Atom.AutoRun(() =>
{
source.Get();
actualization += "T";
});
tick(0);
Assert.AreEqual("T", actualization);
source.Invalidate();
tick(0);
Assert.AreEqual("TT", actualization);
dispose.Dispose();
});
public void KeepAliveComputed() => TestZone.Run(tick =>
{
var source = Atom.Value(1);
var middle = Atom.Computed(() => source.Value + 1, keepAlive: true);
var target = Atom.Computed(() => middle.Value + source.Value);
var run = Atom.AutoRun(() => target.Get());
Assert.AreEqual(2, source.SubscribersCount());
Assert.AreEqual(1, middle.SubscribersCount());
Assert.AreEqual(1, target.SubscribersCount());
run.Dispose();
tick(0);
Assert.AreEqual(1, source.SubscribersCount());
Assert.AreEqual(0, middle.SubscribersCount());
Assert.AreEqual(0, target.SubscribersCount());
middle.Deactivate();
tick(0);
Assert.AreEqual(0, source.SubscribersCount());
});