public void SourceManipulation()
{
var numbers = new SynchronizedRangeObservableCollection <int>(Enumerable.Range(1, 3));
using var expr = numbers.ActiveSingle(i => i % 3 == 0);
Assert.IsNull(expr.OperationFault);
Assert.AreEqual(3, expr.Value);
numbers.RemoveAt(2);
Assert.IsNotNull(expr.OperationFault);
Assert.AreEqual(0, expr.Value);
numbers.Add(3);
Assert.IsNull(expr.OperationFault);
Assert.AreEqual(3, expr.Value);
numbers.Add(5);
Assert.IsNull(expr.OperationFault);
Assert.AreEqual(3, expr.Value);
numbers.Add(6);
Assert.IsNotNull(expr.OperationFault);
Assert.AreEqual(0, expr.Value);
numbers.Clear();
Assert.IsNotNull(expr.OperationFault);
Assert.AreEqual(0, expr.Value);
numbers.Add(3);
numbers.Add(6);
Assert.IsNotNull(expr.OperationFault);
Assert.AreEqual(0, expr.Value);
numbers.RemoveAt(0);
Assert.IsNull(expr.OperationFault);
Assert.AreEqual(6, expr.Value);
}
public void ExpressionlessSourceManipulation()
{
var numbers = new SynchronizedRangeObservableCollection <decimal>();
using var aggregate = numbers.ActiveAverage();
Assert.IsNotNull(aggregate.OperationFault);
Assert.AreEqual(0, aggregate.Value);
numbers.Add(1m);
Assert.IsNull(aggregate.OperationFault);
Assert.AreEqual(1m, aggregate.Value);
numbers.AddRange(System.Linq.Enumerable.Range(2, 3).Select(i => Convert.ToDecimal(i)));
Assert.AreEqual(2.5m, aggregate.Value);
numbers.RemoveRange(0, 2);
Assert.AreEqual(3.5m, aggregate.Value);
numbers.RemoveAt(0);
Assert.AreEqual(4m, aggregate.Value);
numbers.RemoveAt(0);
Assert.IsNotNull(aggregate.OperationFault);
Assert.AreEqual(0m, aggregate.Value);
numbers.Reset(System.Linq.Enumerable.Range(2, 3).Select(i => Convert.ToDecimal(i)));
Assert.IsNull(aggregate.OperationFault);
Assert.AreEqual(3m, aggregate.Value);
}
public void ExpressionlessSourceManipulation()
{
var numbers = new SynchronizedRangeObservableCollection <int>(new int[] { 1 });
using var expr = numbers.ActiveSingle();
Assert.IsNull(expr.OperationFault);
Assert.AreEqual(1, expr.Value);
numbers.Add(2);
Assert.IsNotNull(expr.OperationFault);
Assert.AreEqual(0, expr.Value);
numbers.RemoveAt(0);
Assert.IsNull(expr.OperationFault);
Assert.AreEqual(2, expr.Value);
numbers.Clear();
Assert.IsNotNull(expr.OperationFault);
Assert.AreEqual(0, expr.Value);
}
public void SourceManipulation()
{
var numbers = new SynchronizedRangeObservableCollection <int>(Enumerable.Range(1, 10).Select(i => i * 3));
using var query = numbers.ActiveAll(i => i % 3 == 0);
Assert.IsNull(query.OperationFault);
Assert.IsTrue(query.Value);
numbers[0] = 2;
Assert.IsFalse(query.Value);
numbers.RemoveAt(0);
Assert.IsTrue(query.Value);
--numbers[0];
Assert.IsFalse(query.Value);
numbers.Clear();
Assert.IsTrue(query.Value);
numbers.Add(7);
Assert.IsFalse(query.Value);
}
public void SourceManipulation()
{
var numbers = new SynchronizedRangeObservableCollection <int>(null, System.Linq.Enumerable.Range(0, 10).SelectMany(i => i.Repeat(5)));
using var query = numbers.ActiveDistinct();
Assert.AreEqual(0, query.GetElementFaults().Count);
Assert.AreEqual(10, query.Count);
numbers.RemoveAt(0);
Assert.AreEqual(10, query.Count);
numbers.RemoveRange(0, 4);
Assert.AreEqual(9, query.Count);
numbers.Add(10);
Assert.AreEqual(10, query.Count);
numbers.AddRange(10.Repeat(4));
Assert.AreEqual(10, query.Count);
numbers.Reset(System.Linq.Enumerable.Range(0, 5).SelectMany(i => i.Repeat(2)));
Assert.AreEqual(5, query.Count);
}
public void ExpressionlessSourceManipulation()
{
var numbers = new SynchronizedRangeObservableCollection <int>();
using var aggregate = numbers.ActiveSum();
Assert.IsNull(aggregate.OperationFault);
Assert.AreEqual(0, aggregate.Value);
numbers.Add(1);
Assert.IsNull(aggregate.OperationFault);
Assert.AreEqual(1, aggregate.Value);
numbers.AddRange(System.Linq.Enumerable.Range(2, 3));
Assert.AreEqual(10, aggregate.Value);
numbers.RemoveRange(0, 2);
Assert.AreEqual(7, aggregate.Value);
numbers.RemoveAt(0);
Assert.AreEqual(4, aggregate.Value);
numbers.Reset(System.Linq.Enumerable.Range(1, 3));
Assert.AreEqual(6, aggregate.Value);
}
public void SourceManipulation()
{
var teams = new SynchronizedRangeObservableCollection <TestTeam>();
using (var expr = teams.ActiveSelectMany(team => team.People))
{
void checkMergedNames(string against) => Assert.AreEqual(against, string.Join(string.Empty, expr.Select(person => person.Name)));
checkMergedNames(string.Empty);
var management = new TestTeam();
management.People.Add(new TestPerson("Charles"));
teams.Add(management);
checkMergedNames("Charles");
management.People.Add(new TestPerson("Michael"));
checkMergedNames("CharlesMichael");
management.People.RemoveAt(1);
checkMergedNames("Charles");
var development = new TestTeam();
teams.Add(development);
checkMergedNames("Charles");
development.People.AddRange(new TestPerson[]
{
new TestPerson("John"),
new TestPerson("Emily"),
new TestPerson("Edward"),
new TestPerson("Andrew")
});
checkMergedNames("CharlesJohnEmilyEdwardAndrew");
development.People.RemoveRange(2, 2);
checkMergedNames("CharlesJohnEmily");
var qa = new TestTeam();
qa.People.AddRange(new TestPerson[]
{
new TestPerson("Aaron"),
new TestPerson("Cliff")
});
teams.Add(qa);
checkMergedNames("CharlesJohnEmilyAaronCliff");
qa.People[0].Name = "Erin";
checkMergedNames("CharlesJohnEmilyErinCliff");
var bryan = new TestPerson("Brian");
var it = new TestTeam();
it.People.AddRange(new TestPerson[] { bryan, bryan });
teams.Add(it);
checkMergedNames("CharlesJohnEmilyErinCliffBrianBrian");
bryan.Name = "Bryan";
checkMergedNames("CharlesJohnEmilyErinCliffBryanBryan");
it.People.Clear();
checkMergedNames("CharlesJohnEmilyErinCliff");
it.People = null;
checkMergedNames("CharlesJohnEmilyErinCliff");
it.People = new SynchronizedRangeObservableCollection <TestPerson>()
{
new TestPerson("Paul")
};
checkMergedNames("CharlesJohnEmilyErinCliffPaul");
it.People[0] = new TestPerson("Alex");
checkMergedNames("CharlesJohnEmilyErinCliffAlex");
development.People.Move(1, 0);
checkMergedNames("CharlesEmilyJohnErinCliffAlex");
development.People.ReplaceRange(0, 2, development.People.GetRange(0, 1));
checkMergedNames("CharlesEmilyErinCliffAlex");
it.People.Clear();
it.People.Reset(new TestPerson[] { new TestPerson("Daniel") });
checkMergedNames("CharlesEmilyErinCliffDaniel");
teams.Add(management);
checkMergedNames("CharlesEmilyErinCliffDanielCharles");
management.People.Insert(0, new TestPerson("George"));
checkMergedNames("GeorgeCharlesEmilyErinCliffDanielGeorgeCharles");
var currentManagers = management.People;
var otherManagers = new SynchronizedRangeObservableCollection <TestPerson>()
{
new TestPerson("Josh"),
new TestPerson("Jessica")
};
management.People = otherManagers;
checkMergedNames("JoshJessicaEmilyErinCliffDanielJoshJessica");
management.People = currentManagers;
teams.RemoveAt(teams.Count - 1);
checkMergedNames("GeorgeCharlesEmilyErinCliffDaniel");
teams.Insert(0, management);
checkMergedNames("GeorgeCharlesGeorgeCharlesEmilyErinCliffDaniel");
teams.Move(2, 1);
checkMergedNames("GeorgeCharlesEmilyGeorgeCharlesErinCliffDaniel");
teams.Move(1, 2);
checkMergedNames("GeorgeCharlesGeorgeCharlesEmilyErinCliffDaniel");
teams.RemoveAt(1);
checkMergedNames("GeorgeCharlesEmilyErinCliffDaniel");
teams.RemoveAt(0);
checkMergedNames("EmilyErinCliffDaniel");
}
}