public void TransformingOperationsTest2()
{
var observableCollection = new ObservableCollection <Person>(new List <Person>()
{
new Person(3, "M"), new Person(1, "M"), new Person(7, "M"), new Person(5, "M"), new Person(4, "F"), new Person(6, "F"), new Person(2, "F"), new Person(7, "M")
});
var rool = new ReadOnlyObservableList <Person>(observableCollection);
var srool = rool.AsQueryableCollection().OrderBy(x => x.Sex).ThenBy(x => x.Age).ListAsObservable();
var trool = new TransformingReadOnlyObservableList <Person, Person>(srool, p => p);
Assert.AreEqual(srool.Count, 8);
Assert.IsTrue(observableCollection.OrderBy(x => x.Sex).ThenBy(x => x.Age).SequenceEqual(srool));
observableCollection.Add(new Person(10, "F"));
observableCollection.Insert(3, new Person(9, "M"));
observableCollection.Move(5, 2);
observableCollection[8] = new Person(-1, "X");
observableCollection.Insert(4, new Person(8, "F"));
Assert.AreEqual(srool.Count, 11);
Assert.IsTrue(observableCollection.OrderBy(x => x.Sex).ThenBy(x => x.Age).SequenceEqual(srool));
Assert.AreEqual(trool.Count, 11);
Assert.IsTrue(observableCollection.OrderBy(x => x.Sex).ThenBy(x => x.Age).SequenceEqual(trool));
observableCollection.Single(p => p.Age == observableCollection.Count - 1).Age = 0;
Assert.AreEqual(srool.Count, 11);
Assert.IsTrue(observableCollection.OrderBy(x => x.Sex).ThenBy(x => x.Age).SequenceEqual(srool));
Assert.AreEqual(trool.Count, 11);
Assert.IsTrue(observableCollection.OrderBy(x => x.Sex).ThenBy(x => x.Age).SequenceEqual(srool));
}
public void IndexerTest()
{
var observableCollection =
new ObservableCollection <Person>(new List <Person>()
{
new Person(3, "M"),
new Person(1, "M"),
new Person(7, "M"),
new Person(5, "M"),
new Person(4, "F"),
new Person(6, "F"),
new Person(2, "F"),
new Person(7, "M")
});
var rool = new ReadOnlyObservableList <Person>(observableCollection);
var srool = rool.AsQueryableCollection().OrderBy(x => x.Sex).ThenBy(x => x.Age).ListAsObservable();
Assert.AreEqual(srool[0].Age, 2);
Assert.AreEqual(srool[1].Age, 4);
Assert.AreEqual(srool[2].Age, 6);
Assert.AreEqual(srool[3].Age, 1);
Assert.AreEqual(srool[4].Age, 3);
Assert.AreEqual(srool[5].Age, 5);
Assert.AreEqual(srool[6].Age, 7);
}
public void InvertedIteratorTest()
{
var observableCollection = new ObservableCollection <Person>(Enumerable.Range(1, 10).Select(x => new Person(x, x % 2 == 0 ? "F" : "M")));
var rool = new ReadOnlyObservableList <Person>(observableCollection);
var srool = rool.AsQueryableCollection().OrderByDescending(x => x.Sex).ThenBy(x => x.Age).ListAsObservable();
Assert.IsTrue(srool.Skip(5).Select(p => p.Sex).SequenceEqual(Enumerable.Repeat("F", 5)));
Assert.IsTrue(srool.Take(5).Select(p => p.Sex).SequenceEqual(Enumerable.Repeat("M", 5)));
Assert.IsTrue(srool.Skip(5).Select(p => p.Age).SequenceEqual(Enumerable.Range(1, 5).Select(i => 2 * i)));
Assert.IsTrue(srool.Take(5).Select(p => p.Age).SequenceEqual(Enumerable.Range(0, 5).Select(i => 2 * i + 1)));
}
public void AddElementTest()
{
var observableCollection = new ObservableCollection <Person>(new List <Person>()
{
new Person(3, "M"), new Person(2, "F"), new Person(1, "M")
});
var rool = new ReadOnlyObservableList <Person>(observableCollection);
var srool = rool.AsQueryableCollection().OrderBy(x => x.Sex).ThenBy(x => x.Age).ListAsObservable();
srool.PropertyChanged += SroolOnPropertyChanged;
observableCollection.Add(new Person(6, "F"));
observableCollection.Insert(2, new Person(4, "F"));
observableCollection.Add(new Person(5, "M"));
observableCollection.Insert(1, new Person(7, "M"));
Assert.AreEqual(srool.Count, 7);
Assert.IsTrue(observableCollection.OrderBy(x => x.Sex).ThenBy(x => x.Age).SequenceEqual(srool));
}
public void MoveElementTest()
{
var observableCollection =
new ObservableCollection <Person>(new List <Person>()
{
new Person(3, "M"),
new Person(2, "F"),
new Person(1, "M"),
new Person(7, "M"),
new Person(5, "M"),
new Person(4, "F"),
new Person(6, "F"),
});
var rool = new ReadOnlyObservableList <Person>(observableCollection);
var srool = rool.AsQueryableCollection().OrderBy(x => x.Sex).ThenBy(x => x.Age).ListAsObservable();
observableCollection.Move(1, 3);
observableCollection.Move(4, 2);
observableCollection.Move(3, 5);
Assert.AreEqual(srool.Count, 7);
Assert.IsTrue(observableCollection.OrderBy(x => x.Sex).ThenBy(x => x.Age).SequenceEqual(srool));
}
public void DeleteElementTest()
{
var observableCollection = new ObservableCollection <Person>(new List <Person>()
{
new Person(3, "M"), new Person(2, "F"), new Person(1, "M"), new Person(7, "M"), new Person(5, "M"), new Person(4, "F"), new Person(6, "F"), new Person(2, "F"), new Person(7, "M")
});
var rool = new ReadOnlyObservableList <Person>(observableCollection);
var srool = rool.AsQueryableCollection().OrderBy(x => x.Sex).ThenBy(x => x.Age).ListAsObservable();
int[] ages = new[] { 2, 2, 4, 6, 1, 3, 5, 7, 7 };
Assert.AreEqual(srool.Count, 9);
for (int i = 0; i < observableCollection.Count; i++)
{
Assert.AreEqual(srool[i].Age, ages[i]);
}
observableCollection.RemoveAt(1);
observableCollection.RemoveAt(2);
Assert.AreEqual(srool.Count, 7);
Assert.IsTrue(observableCollection.OrderBy(x => x.Sex).ThenBy(x => x.Age).SequenceEqual(srool));
}