public void AllowsForGarbageCollection()
{
var mortal = new LifetimeSource();
var lifes = new[] {
Lifetime.Immortal,
Lifetime.Dead,
mortal.Lifetime
};
// callbacks are not kept when the lifetime is not mortal
var f = ValidCallbackMaker;
foreach (var life in lifes)
{
// pre-finished
f.AssertCollectedAfter(e => Lifetime.Immortal.WhenDead(e, life));
f.AssertCollectedAfter(e => Lifetime.Dead.WhenDead(e, life));
f.AssertCollectedAfter(e => LimboedLifetime.WhenDead(e, life));
// post-finished
f.AssertCollectedAfter(e => { using (var limbod = new LimboLife()) limbod.Lifetime.WhenDead(e, life); });
f.AssertCollectedAfter(e => { using (var blessed = new BlessedLife()) blessed.Lifetime.WhenDead(e, life); });
f.AssertCollectedAfter(e => { using (var doomed = new DoomedLife()) doomed.Lifetime.WhenDead(e, life); });
}
// callbacks are not kept when the subscription lifetime is dead or dies
f.AssertCollectedAfter(e => { using (var doomed = new DoomedLife()) mortal.Lifetime.WhenDead(e, doomed.Lifetime); });
f.AssertCollectedAfter(e => mortal.Lifetime.WhenDead(e, Lifetime.Dead));
// callbacks are kept when the lifetime is mortal and the subscription lifetime does not die
f.AssertNotCollectedAfter(e => mortal.Lifetime.WhenDead(e, Lifetime.Immortal));
f.AssertNotCollectedAfter(e => mortal.Lifetime.WhenDead(e, mortal.Lifetime));
GC.KeepAlive(mortal);
}
public void Status()
{
// status of constants
Lifetime.Immortal.IsMortal.AssertIsFalse();
Lifetime.Immortal.IsImmortal.AssertIsTrue();
Lifetime.Immortal.IsDead.AssertIsFalse();
Lifetime.Dead.IsMortal.AssertIsFalse();
Lifetime.Dead.IsImmortal.AssertIsFalse();
Lifetime.Dead.IsDead.AssertIsTrue();
// state before transition
var mortal = new LifetimeSource();
mortal.Lifetime.IsMortal.AssertIsTrue();
mortal.Lifetime.IsImmortal.AssertIsFalse();
mortal.Lifetime.IsDead.AssertIsFalse();
// transition to dead
var doomed = new LifetimeSource();
doomed.EndLifetime();
doomed.Lifetime.IsMortal.AssertIsFalse();
doomed.Lifetime.IsImmortal.AssertIsFalse();
doomed.Lifetime.IsDead.AssertIsTrue();
// transition to immortal
var blessed = new LifetimeSource();
blessed.ImmortalizeLifetime();
blessed.Lifetime.IsMortal.AssertIsFalse();
blessed.Lifetime.IsImmortal.AssertIsTrue();
blessed.Lifetime.IsDead.AssertIsFalse();
// transition to immortal via limbo
var limbo = new LimboLife();
limbo.Dispose();
GC.Collect();
limbo.Lifetime.IsMortal.AssertIsFalse();
limbo.Lifetime.IsImmortal.AssertIsTrue();
limbo.Lifetime.IsDead.AssertIsFalse();
}
public void WhenSet()
{
// called when immortal?
var blessed = new LifetimeSource();
var preBlessedLife = blessed.Lifetime.WhenDeadTask();
blessed.ImmortalizeLifetime();
var bt = new[] {
Lifetime.Immortal.WhenDeadTask(),
blessed.Lifetime.WhenDeadTask(),
preBlessedLife
};
Task.WhenAny(bt).AssertNotCompleted();
// called when dead?
var doomed = new LifetimeSource();
var preDoomedLife = doomed.Lifetime.WhenDeadTask();
doomed.EndLifetime();
var dt = new[] {
preDoomedLife,
doomed.Lifetime.WhenDeadTask(),
Lifetime.Dead.WhenDeadTask()
};
Task.WhenAll(dt).AssertRanToCompletion();
// never called from limbo
var limboed = new LimboLife();
var preLimboLife = limboed.Lifetime.WhenDeadTask();
limboed.Dispose();
Task.WhenAny(
preLimboLife,
limboed.Lifetime.WhenDeadTask()
).AssertNotCompleted();
}
public void AllowsForGarbageCollection() {
var mortal = new LifetimeSource();
var lifes = new[] {
Lifetime.Immortal,
Lifetime.Dead,
mortal.Lifetime
};
// callbacks are not kept when the lifetime is not mortal
var f = ValidCallbackMaker;
foreach (var life in lifes) {
// pre-finished
f.AssertCollectedAfter(e => Lifetime.Immortal.WhenDead(e, life));
f.AssertCollectedAfter(e => Lifetime.Dead.WhenDead(e, life));
f.AssertCollectedAfter(e => LimboedLifetime.WhenDead(e, life));
// post-finished
f.AssertCollectedAfter(e => { using (var limbod = new LimboLife()) limbod.Lifetime.WhenDead(e, life); });
f.AssertCollectedAfter(e => { using (var blessed = new BlessedLife()) blessed.Lifetime.WhenDead(e, life); });
f.AssertCollectedAfter(e => { using (var doomed = new DoomedLife()) doomed.Lifetime.WhenDead(e, life); });
}
// callbacks are not kept when the subscription lifetime is dead or dies
f.AssertCollectedAfter(e => { using (var doomed = new DoomedLife()) mortal.Lifetime.WhenDead(e, doomed.Lifetime); });
f.AssertCollectedAfter(e => mortal.Lifetime.WhenDead(e, Lifetime.Dead));
// callbacks are kept when the lifetime is mortal and the subscription lifetime does not die
f.AssertNotCollectedAfter(e => mortal.Lifetime.WhenDead(e, Lifetime.Immortal));
f.AssertNotCollectedAfter(e => mortal.Lifetime.WhenDead(e, mortal.Lifetime));
GC.KeepAlive(mortal);
}
public void WhenSet() {
// called when immortal?
var blessed = new LifetimeSource();
var preBlessedLife = blessed.Lifetime.WhenDeadTask();
blessed.ImmortalizeLifetime();
var bt = new[] {
Lifetime.Immortal.WhenDeadTask(),
blessed.Lifetime.WhenDeadTask(),
preBlessedLife
};
Task.WhenAny(bt).AssertNotCompleted();
// called when dead?
var doomed = new LifetimeSource();
var preDoomedLife = doomed.Lifetime.WhenDeadTask();
doomed.EndLifetime();
var dt = new[] {
preDoomedLife,
doomed.Lifetime.WhenDeadTask(),
Lifetime.Dead.WhenDeadTask()
};
Task.WhenAll(dt).AssertRanToCompletion();
// never called from limbo
var limboed = new LimboLife();
var preLimboLife = limboed.Lifetime.WhenDeadTask();
limboed.Dispose();
Task.WhenAny(
preLimboLife,
limboed.Lifetime.WhenDeadTask()
).AssertNotCompleted();
}
public void Status() {
// status of constants
Lifetime.Immortal.IsMortal.AssertIsFalse();
Lifetime.Immortal.IsImmortal.AssertIsTrue();
Lifetime.Immortal.IsDead.AssertIsFalse();
Lifetime.Dead.IsMortal.AssertIsFalse();
Lifetime.Dead.IsImmortal.AssertIsFalse();
Lifetime.Dead.IsDead.AssertIsTrue();
// state before transition
var mortal = new LifetimeSource();
mortal.Lifetime.IsMortal.AssertIsTrue();
mortal.Lifetime.IsImmortal.AssertIsFalse();
mortal.Lifetime.IsDead.AssertIsFalse();
// transition to dead
var doomed = new LifetimeSource();
doomed.EndLifetime();
doomed.Lifetime.IsMortal.AssertIsFalse();
doomed.Lifetime.IsImmortal.AssertIsFalse();
doomed.Lifetime.IsDead.AssertIsTrue();
// transition to immortal
var blessed = new LifetimeSource();
blessed.ImmortalizeLifetime();
blessed.Lifetime.IsMortal.AssertIsFalse();
blessed.Lifetime.IsImmortal.AssertIsTrue();
blessed.Lifetime.IsDead.AssertIsFalse();
// transition to immortal via limbo
var limbo = new LimboLife();
limbo.Dispose();
GC.Collect();
limbo.Lifetime.IsMortal.AssertIsFalse();
limbo.Lifetime.IsImmortal.AssertIsTrue();
limbo.Lifetime.IsDead.AssertIsFalse();
}