public void ValueDisposal()
{
var people = new ObservableCollection <SyncDisposableTestPerson>
{
SyncDisposableTestPerson.CreateJohn()
};
SyncDisposableTestPerson newPerson;
using (var expr = ActiveExpression.Create(p => - p[0], people))
{
newPerson = expr.Value;
Assert.IsFalse(newPerson.IsDisposed);
people[0] = SyncDisposableTestPerson.CreateJohn();
Assert.IsTrue(newPerson.IsDisposed);
newPerson = expr.Value;
Assert.IsFalse(newPerson.IsDisposed);
}
Assert.IsTrue(newPerson.IsDisposed);
}
public void ValueDisposal()
{
var john = SyncDisposableTestPerson.CreateJohn();
var emily = SyncDisposableTestPerson.CreateEmily();
var people = new ObservableCollection <SyncDisposableTestPerson> {
john
};
var options = new ActiveExpressionOptions();
options.AddExpressionValueDisposal(() => new ObservableCollection <SyncDisposableTestPerson>()[0]);
using (var ae = ActiveExpression.Create(p => p[0], people, options))
{
Assert.AreSame(john, ae.Value);
Assert.IsFalse(john.IsDisposed);
people[0] = emily;
Assert.AreSame(emily, ae.Value);
Assert.IsTrue(john.IsDisposed);
}
Assert.IsTrue(emily.IsDisposed);
}
public void ValueDisposal()
{
var john = SyncDisposableTestPerson.CreateJohn();
var options = new ActiveExpressionOptions();
options.AddConstructedTypeDisposal(typeof(SyncDisposableTestPerson));
SyncDisposableTestPerson first, second;
using (var expr = ActiveExpression.Create(() => new SyncDisposableTestPerson(john.Name.Length.ToString()), options))
{
Assert.IsNull(expr.Fault);
first = expr.Value;
Assert.IsFalse(first.IsDisposed);
john.Name = string.Empty;
Assert.IsNull(expr.Fault);
second = expr.Value;
Assert.IsFalse(second.IsDisposed);
Assert.IsTrue(first.IsDisposed);
}
Assert.IsTrue(second.IsDisposed);
}
public void ValueDisposal()
{
var john = SyncDisposableTestPerson.CreateJohn();
var emily = SyncDisposableTestPerson.CreateEmily();
var options = new ActiveExpressionOptions();
options.AddExpressionValueDisposal(() => CombineSyncDisposablePeople(null, null));
SyncDisposableTestPerson first, second;
using (var expr = ActiveExpression.Create(() => CombineSyncDisposablePeople(john.Name.Length > 3 ? john : emily, emily), options))
{
Assert.IsNull(expr.Fault);
first = expr.Value;
Assert.IsFalse(first.IsDisposed);
john.Name = string.Empty;
Assert.IsNull(expr.Fault);
second = expr.Value;
Assert.IsFalse(second.IsDisposed);
Assert.IsTrue(first.IsDisposed);
}
Assert.IsTrue(second.IsDisposed);
}
SyncDisposableTestPerson CombineSyncDisposablePeople(SyncDisposableTestPerson a, SyncDisposableTestPerson b) => new SyncDisposableTestPerson
{
Name = $"{a.Name} {b.Name}"
};