public void ThenByDescending_NoObservableItemSelectorChanges_NoUpdate()
{
var update = false;
var coll = new OrderableList <Dummy <int> >();
var dummy = new Dummy <int> [6];
for (int i = 0; i < 6; i++)
{
dummy[i] = new Dummy <int>(i);
}
coll.Sequences.Add(new List <Dummy <int> >()
{
dummy[0], dummy[1], dummy[2]
});
coll.Sequences.Add(new List <Dummy <int> >()
{
dummy[3], dummy[4], dummy[5]
});
var test = coll.ThenByDescending(d => d.Item);
test.CollectionChanged += (o, e) =>
{
update = true;
};
test.AssertSequence(dummy[2], dummy[1], dummy[0], dummy[5], dummy[4], dummy[3]);
Assert.IsFalse(update);
dummy[0].Item = 3;
Assert.IsFalse(update);
}
public void ThenByDescending_SequenceAdded_Update()
{
var update = false;
var coll = new OrderableList <int>();
coll.Sequences.Add(new List <int>()
{
3, 1, 2
});
var test = coll.ThenByDescending(i => i);
test.CollectionChanged += (o, e) =>
{
update = true;
Assert.IsTrue(e.NewItems.Contains(4));
Assert.IsTrue(e.NewItems.Contains(5));
Assert.IsTrue(e.NewItems.Contains(6));
Assert.AreEqual(3, e.NewItems.Count);
Assert.IsNull(e.OldItems);
};
test.AssertSequence(3, 2, 1);
Assert.IsFalse(update);
coll.Sequences.Add(new List <int>()
{
6, 4, 5
});
Assert.IsTrue(update);
test.AssertSequence(3, 2, 1, 6, 5, 4);
}
public void ThenByDescending_NoObservableSequenceItemRemoved_NoUpdate()
{
var update = false;
var coll = new OrderableList <int>();
var list = new List <int>()
{
3, 1, 2
};
coll.Sequences.Add(list);
coll.Sequences.Add(new List <int>()
{
6, 4, 5
});
var test = coll.ThenByDescending(i => i);
test.CollectionChanged += (o, e) => update = true;
test.AssertSequence(3, 2, 1, 6, 5, 4);
Assert.IsFalse(update);
Assert.AreEqual(6, test.Sequences.Count());
list.Remove(2);
Assert.IsFalse(update);
}
public void ThenByDescending_ObservableSequenceDoubleRemoved_Update()
{
var update = false;
var coll = new OrderableList <int>();
var list = new ObservableCollection <int>()
{
3, 1, 1, 2
};
coll.Sequences.Add(list);
coll.Sequences.Add(new List <int>()
{
6, 4, 5
});
var test = coll.ThenByDescending(i => i);
test.CollectionChanged += (o, e) =>
{
Assert.AreEqual(NotifyCollectionChangedAction.Remove, e.Action);
Assert.AreEqual(1, e.OldItems[0]);
Assert.IsNull(e.NewItems);
update = true;
};
test.AssertSequence(3, 2, 1, 1, 6, 5, 4);
Assert.IsFalse(update);
Assert.AreEqual(6, test.Sequences.Count());
list.Remove(1);
Assert.IsTrue(update);
test.AssertSequence(3, 2, 1, 6, 5, 4);
Assert.AreEqual(6, test.Sequences.Count());
}
public void ThenByDescending_ObservableSequenceDoubleRemoved_Update()
{
var update = false;
var updateSequences = false;
var update1Sequence = false;
var coll = new OrderableList <int>();
var list = new ObservableCollection <int>()
{
3, 1, 1, 2
};
coll.Sequences.Add(list);
coll.Sequences.Add(new List <int>()
{
6, 4, 5
});
var test = coll.ThenByDescending(i => i);
test.CollectionChanged += (o, e) =>
{
Assert.AreEqual(1, e.OldItems[0]);
Assert.IsNull(e.NewItems);
update = true;
};
test.Sequences.CollectionChanged += (o, e) => updateSequences = true;
test.AssertSequence(3, 2, 1, 1, 6, 5, 4);
Assert.IsFalse(update);
Assert.IsFalse(updateSequences);
Assert.AreEqual(6, test.Sequences.Count());
var sequenceFor1 = test.Sequences.FirstOrDefault(s => s.Contains(1)) as INotifyCollectionChanged;
sequenceFor1.CollectionChanged += (o, e) =>
{
update1Sequence = true;
Assert.AreEqual(1, e.OldItems[0]);
Assert.IsNull(e.NewItems);
};
list.Remove(1);
Assert.IsTrue(update);
Assert.IsFalse(updateSequences);
Assert.IsTrue(update1Sequence);
test.AssertSequence(3, 2, 1, 6, 5, 4);
Assert.AreEqual(6, test.Sequences.Count());
}
public void ThenByDescending_ObservableSequenceNewItemAdded_Update()
{
var update = false;
var updateSequences = false;
var coll = new OrderableList <int>();
var list = new ObservableCollection <int>()
{
3, 1, 2
};
coll.Sequences.Add(list);
coll.Sequences.Add(new List <int>()
{
6, 4, 5
});
var test = coll.ThenByDescending(i => i);
test.CollectionChanged += (o, e) =>
{
Assert.AreEqual(0, e.NewItems[0]);
Assert.IsNull(e.OldItems);
update = true;
};
test.Sequences.CollectionChanged += (o, e) =>
{
Assert.IsInstanceOfType(e.NewItems[0], typeof(IEnumerable <int>));
Assert.IsNull(e.OldItems);
updateSequences = true;
};
test.AssertSequence(3, 2, 1, 6, 5, 4);
Assert.IsFalse(update);
Assert.IsFalse(updateSequences);
Assert.AreEqual(6, test.Sequences.Count());
list.Add(0);
Assert.IsTrue(update);
Assert.IsTrue(updateSequences);
test.AssertSequence(3, 2, 1, 0, 6, 5, 4);
Assert.AreEqual(7, test.Sequences.Count());
foreach (var sequence in test.Sequences)
{
Assert.AreEqual(1, sequence.Count());
}
}
public void ThenByDescending_SequenceRemoved_Update()
{
var update = false;
var coll = new OrderableList<int>();
coll.Sequences.Add(new List<int>() { 3, 1, 2 });
var list = new List<int>() { 4, 5, 6 };
coll.Sequences.Add(list);
var test = coll.ThenByDescending(i => i);
test.CollectionChanged += (o, e) =>
{
update = true;
Assert.IsTrue(e.OldItems.Contains(4));
Assert.IsTrue(e.OldItems.Contains(5));
Assert.IsTrue(e.OldItems.Contains(6));
Assert.AreEqual(3, e.OldItems.Count);
Assert.IsNull(e.NewItems);
};
test.AssertSequence(3, 2, 1, 6, 5, 4);
Assert.IsFalse(update);
coll.Sequences.Remove(list);
Assert.IsTrue(update);
test.AssertSequence(3, 2, 1);
}
public void ThenByDescending_ObservableItemSelectorChanges_Update()
{
var update = false;
var coll = new OrderableList<Dummy<int>>();
var dummy = new Dummy<int>[6];
for (int i = 0; i < 6; i++)
{
dummy[i] = new ObservableDummy<int>(i);
}
coll.Sequences.Add(new List<Dummy<int>>() { dummy[0], dummy[1], dummy[2] });
coll.Sequences.Add(new List<Dummy<int>>() { dummy[3], dummy[4], dummy[5] });
var test = coll.ThenByDescending(d => d.Item);
test.CollectionChanged += (o, e) =>
{
update = true;
Assert.AreSame(dummy[0], e.NewItems[0]);
Assert.AreSame(dummy[0], e.OldItems[0]);
};
test.AssertSequence(dummy[2], dummy[1], dummy[0], dummy[5], dummy[4], dummy[3]);
Assert.IsFalse(update);
dummy[0].Item = 3;
Assert.IsTrue(update);
test.AssertSequence(dummy[0], dummy[2], dummy[1], dummy[5], dummy[4], dummy[3]);
}
public void ThenByDescending_ObservableSequenceDoubleRemoved_Update()
{
var update = false;
var updateSequences = false;
var update1Sequence = false;
var coll = new OrderableList<int>();
var list = new ObservableCollection<int>() { 3, 1, 1, 2 };
coll.Sequences.Add(list);
coll.Sequences.Add(new List<int>() { 6, 4, 5 });
var test = coll.ThenByDescending(i => i);
test.CollectionChanged += (o, e) =>
{
Assert.AreEqual(1, e.OldItems[0]);
Assert.IsNull(e.NewItems);
update = true;
};
test.Sequences.CollectionChanged += (o, e) => updateSequences = true;
test.AssertSequence(3, 2, 1, 1, 6, 5, 4);
Assert.IsFalse(update);
Assert.IsFalse(updateSequences);
Assert.AreEqual(6, test.Sequences.Count());
var sequenceFor1 = test.Sequences.FirstOrDefault(s => s.Contains(1)) as INotifyCollectionChanged;
sequenceFor1.CollectionChanged += (o, e) =>
{
update1Sequence = true;
Assert.AreEqual(1, e.OldItems[0]);
Assert.IsNull(e.NewItems);
};
list.Remove(1);
Assert.IsTrue(update);
Assert.IsFalse(updateSequences);
Assert.IsTrue(update1Sequence);
test.AssertSequence(3, 2, 1, 6, 5, 4);
Assert.AreEqual(6, test.Sequences.Count());
}
public void ThenByDescending_ObservableSequenceLastItemRemoved_Update()
{
var update = false;
var updateSequences = false;
var coll = new OrderableList<int>();
var list = new ObservableCollection<int>() { 3, 1, 1, 2 };
coll.Sequences.Add(list);
coll.Sequences.Add(new List<int>() { 6, 4, 5 });
var test = coll.ThenByDescending(i => i);
test.CollectionChanged += (o, e) =>
{
Assert.AreEqual(2, e.OldItems[0]);
Assert.IsNull(e.NewItems);
update = true;
};
test.Sequences.CollectionChanged += (o, e) =>
{
Assert.IsInstanceOfType(e.OldItems[0], typeof(IEnumerable<int>));
Assert.IsNull(e.NewItems);
updateSequences = true;
};
test.AssertSequence(3, 2, 1, 1, 6, 5, 4);
Assert.IsFalse(update);
Assert.IsFalse(updateSequences);
Assert.AreEqual(6, test.Sequences.Count());
list.Remove(2);
Assert.IsTrue(update);
Assert.IsTrue(updateSequences);
test.AssertSequence(3, 1, 1, 6, 5, 4);
Assert.AreEqual(5, test.Sequences.Count());
}
public void ThenByDescending_NoObservableSequenceItemRemoved_NoUpdate()
{
var update = false;
var coll = new OrderableList<int>();
var list = new List<int>() { 3, 1, 2 };
coll.Sequences.Add(list);
coll.Sequences.Add(new List<int>() { 6, 4, 5 });
var test = coll.ThenByDescending(i => i);
test.CollectionChanged += (o, e) => update = true;
test.AssertSequence(3, 2, 1, 6, 5, 4);
Assert.IsFalse(update);
Assert.AreEqual(6, test.Sequences.Count());
list.Remove(2);
Assert.IsFalse(update);
}