Add tests to ensure DesignData ctor runs

StabilityMatrix.Tests/Avalonia/DesignDataTests.cs

@@ -0,0 +1,28 @@
+using System.Reflection;
+using StabilityMatrix.Avalonia.DesignData;
+
+namespace StabilityMatrix.Tests.Avalonia;
+
+[TestClass]
+public class DesignDataTests
+{
+    [TestInitialize]
+    public void TestInitialize()
+    {
+        // invoke static ctor by property access
+        Assert.IsNotNull(StabilityMatrix.Avalonia.DesignData.DesignData.LaunchPageViewModel);
+    }
+    
+    // Return all properties
+    public static IEnumerable<object[]> DesignDataProperties => 
+        typeof(StabilityMatrix.Avalonia.DesignData.DesignData).GetProperties()
+            .Select(p => new object[] { p });
+    
+    [TestMethod]
+    [DynamicData(nameof(DesignDataProperties))]
+    public void Property_ShouldBeNotNull(PropertyInfo property)
+    {
+        var value = property.GetValue(null);
+        Assert.IsNotNull(value);
+    }
+}

StabilityMatrix.Tests/StabilityMatrix.Tests.csproj

@@ -26,10 +26,13 @@
     </ItemGroup>
 
     <ItemGroup>
+      <ProjectReference Include="..\StabilityMatrix.Avalonia\StabilityMatrix.Avalonia.csproj" />
       <ProjectReference Include="..\StabilityMatrix.Core\StabilityMatrix.Core.csproj" />
       <ProjectReference Include="..\StabilityMatrix\StabilityMatrix.csproj" />
+
     </ItemGroup>
 
 
 
+
 </Project>