public void TestTrackableCollection_FirstOrDefault(bool track)
{
var acc = new Accumulator("test");
var a = new Simple("a");
var b = new Simple("b");
var c = new Simple("c");
var coll = new TrackableCollection <Simple>(acc, track)
{
a, b, c, b, c, b, b
};
var first = coll.FirstOrDefault();
Assert.AreEqual(a, first);
coll.Clear();
first = coll.FirstOrDefault();
Assert.IsNull(first);
var coll2 = new TrackableCollection <int>(acc, track)
{
-1, 1, 2
};
var f = coll2.FirstOrDefault();
Assert.AreEqual(-1, f);
coll2.Clear();
f = coll2.FirstOrDefault();
Assert.AreEqual(default(int), f);
if (track)
{
Assert.AreEqual(12, acc.Records.Count);
}
else
{
Assert.AreEqual(0, acc.Records.Count);
}
}
/// <summary>
/// Supprime un lien référentiel - Action.
/// </summary>
/// <typeparam name="TActionLink">Le type de lien référentiel - action.</typeparam>
/// <param name="collection">La collection dans laquelle l'élément doit être supprimé.</param>
/// <param name="referential">Le référentiel.</param>
/// <returns><c>true</c> si la suppression a réussi.</returns>
static bool Delete <TActionLink>(TrackableCollection <TActionLink> collection, IMultipleActionReferential referential, bool cancelChanges = false)
where TActionLink : IReferentialActionLink, IObjectWithChangeTracker
{
TActionLink al = collection.FirstOrDefault(c => c.Referential == referential);
if (al != null)
{
if (cancelChanges)
{
al.Referential.CancelChanges();
}
collection.Remove(al);
if (al.IsMarkedAsAdded)
{
al.MarkAsUnchanged();
}
return(true);
}
return(false);
}
