#511 Add unit tests covering scenario

src/Catel.Fody.TestAssembly.Shared/Bugs/GH0511.cs

@@ -0,0 +1,32 @@
+namespace Catel.Fody.TestAssembly.Bugs.GH0511
+{
+    using Catel.Data;
+    using Catel.MVVM;
+
+    public class AppSettingsModel : ModelBase
+    {
+        public string SelectedThemeName { get; set; }
+    }
+
+    public class AppSettingsViewModel : ViewModelBase
+    {
+        public AppSettingsViewModel(AppSettingsModel appSettings)
+        {
+            AppSettings = appSettings;
+        }
+
+        public string ExpectedValue { get; set; }
+
+        [Model]
+        [Expose("SelectedThemeName")]
+        public AppSettingsModel AppSettings { get; set; }
+
+        private void OnSelectedThemeNameChanged()
+        {
+            if (AppSettings.SelectedThemeName != ExpectedValue)
+            {
+                throw new System.Exception($"Unexpected value '{AppSettings.SelectedThemeName}'");
+            }
+        }
+    }
+}

src/Catel.Fody.Tests.Shared/Repros/GH0511.cs

@@ -0,0 +1,25 @@
+namespace Catel.Fody.Tests.Repros
+{
+    using System;
+    using Catel.Reflection;
+    using NUnit.Framework;
+
+    [TestFixture]
+    public class GH0511TestFixture
+    {
+        [TestCase]
+        public void Raises_PropertyChanged_With_Updated_Value()
+        {
+            var modelType = AssemblyWeaver.Instance.Assembly.GetType("Catel.Fody.TestAssembly.Bugs.GH0511.AppSettingsModel");
+            var model = Activator.CreateInstance(modelType);
+
+            var viewModelType = AssemblyWeaver.Instance.Assembly.GetType("Catel.Fody.TestAssembly.Bugs.GH0511.AppSettingsViewModel");
+            var viewModel = Activator.CreateInstance(viewModelType, model) as dynamic;
+            viewModel.ExpectedValue = "test";
+
+            PropertyHelper.SetPropertyValue(model, "SelectedThemeName", "test");
+
+            Assert.That(viewModel.AppSettings.SelectedThemeName, Is.EqualTo("test"));
+        }
+    }
+}