When I run this test in NUnit = Red Bar.

    [Test]
    public void ChangingValueViaPropertyDescriptorRaisesPropertyChangedNotification()
    {
        PropertyChangedEventArgs pCEventArgs = null;
        subjectVM.PropertyChanged += (sender, e) => { pCEventArgs = e; };

        PropertyDescriptor descriptor = subjectVM.GetProperties().Find(schoolMeta.Name, false);

        descriptor.SetValue(null, "School's out for summer.");

        Assert.IsNotNull(pCEventArgs);
        Assert.AreEqual("School", pCEventArgs.PropertyName);
    }

However, when I run this test from within Visual Studio with Test Driven .Net it passes.

When it fails with NUnit it's because PropertyChanged is null, subjectVM is a View Model classes that inherits PropertyChanged from a base class.

Am I to blame, or am I looking at a NUnit bug?