public SomeModel()
{
Count = NotifyChange.Of(() => _count, x => _count = x);
Message = NotifyChange.Of <string>();
DetailedMessage = NotifyChange.Select(() => Message + "-" + Count, Message, Count);
}
public void Given_I_have_selected_from_two_sources_When_selected_result_not_in_use_anymore_and_GC_Then_selected_result_should_be_collected()
{
// Arrange
var model = new SomeModel();
var doubleCount = NotifyChange.Select(() => model.Count.Value * 2, model.Count);
var doubleCountWeakRef = new WeakReference(doubleCount);
// Act
// ReSharper disable RedundantAssignment
doubleCount = null;
// ReSharper restore RedundantAssignment
GC.Collect();
GC.WaitForPendingFinalizers();
GC.Collect();
// Assert
doubleCountWeakRef.IsAlive.Should().BeFalse();
model.Count.Value.Should().Be(0);
}
public void Given_I_have_selected_from_two_sources_When_selected_result_not_in_use_And_sources_are_changed_Then_no_exception_should_be_raised()
{
// Arrange
var model = new SomeModel();
var detailedMessage = NotifyChange.Select(() => model.Message.Value + model.Count.Value, model.Count, model.Message);
var detailedMessageWeakRef = new WeakReference(detailedMessage);
// Act
// ReSharper disable RedundantAssignment
detailedMessage = null;
// ReSharper restore RedundantAssignment
GC.Collect();
GC.WaitForPendingFinalizers();
GC.Collect();
// Assert
Assert.DoesNotThrow(() =>
{
model.Count.Value += 1;
model.Message.Value = "hey";
});
detailedMessageWeakRef.IsAlive.Should().BeFalse();
}