public void TestUpdateWithoutDependency()
{
DependencySystem<object> test = new DependencySystem<object>();
object a = 1;
object b = 2;
test.AddDependency(b, a);
test.Invalidate(b);
Assert.False(test.NeedsUpdate);
}
public void TestSimpleUpdate()
{
DependencySystem<object> test = new DependencySystem<object>();
object a = 1;
object b = 2;
test.AddDependency(b, a);
Assert.False(test.NeedsUpdate);
test.Invalidate(a);
List<DependencySystem<object>.InvalidDependent> updates = new List<DependencySystem<object>.InvalidDependent>(test.GetInvalidDependents());
Assert.AreEqual(updates.Count, 1);
TestUpdate(updates[0], b, a);
Assert.False(test.NeedsUpdate);
}
public void TestUpdate()
{
DependencySystem<object> test = new DependencySystem<object>();
object a = 1;
object b = 2;
object c = 3;
object d = 4;
test.AddDependency(d, c);
test.AddDependency(c, b);
test.AddDependency(b, a);
Assert.False(test.NeedsUpdate);
test.Invalidate(a);
List<DependencySystem<object>.InvalidDependent> updates = new List<DependencySystem<object>.InvalidDependent>(test.GetInvalidDependents());
Assert.AreEqual(updates.Count, 3);
TestUpdate(updates[0], b, a);
TestUpdate(updates[1], c, b);
TestUpdate(updates[2], d, c);
}
private void TestUpdate(DependencySystem<object>.InvalidDependent update, object dependent, params object[] dependencies)
{
Assert.AreEqual(update.Dependent, dependent);
Utilities.TestSequenceContainSameItems(update.Dependencies, dependencies);
}
public void TestEmpty()
{
DependencySystem<object> test = new DependencySystem<object>();
Assert.False(test.NeedsUpdate);
CollectionAssert.IsEmpty(test.GetInvalidDependents());
}
/// <summary>
/// Sets the stored value.
/// </summary>
public void SetValue(DependencySystem system, object value)
{
this.value = value;
ChangedAt = system.GetNextRevision();
}