diff --git a/tests/Avalonia.Base.UnitTests/PropertyStore/FramePriorityExtensionsTests.cs b/tests/Avalonia.Base.UnitTests/PropertyStore/FramePriorityExtensionsTests.cs
new file mode 100644
index 0000000000..6493ef3759
--- /dev/null
+++ b/tests/Avalonia.Base.UnitTests/PropertyStore/FramePriorityExtensionsTests.cs
@@ -0,0 +1,52 @@
+using Avalonia.Data;
+using Avalonia.PropertyStore;
+using Xunit;
+
+namespace Avalonia.Base.UnitTests.PropertyStore;
+
+#pragma warning disable format
+
+public class FramePriorityExtensionsTests
+{
+
+    [Theory]
+    [InlineData(BindingPriority.Animation,    FrameType.Style,                FramePriority.Animation)]
+    [InlineData(BindingPriority.Animation,    FrameType.TemplatedParentTheme, FramePriority.AnimationTemplatedParentTheme)]
+    [InlineData(BindingPriority.Animation,    FrameType.Theme,                FramePriority.AnimationTheme)]
+    [InlineData(BindingPriority.StyleTrigger, FrameType.Style,                FramePriority.StyleTrigger)]
+    [InlineData(BindingPriority.StyleTrigger, FrameType.TemplatedParentTheme, FramePriority.StyleTriggerTemplatedParentTheme)]
+    [InlineData(BindingPriority.StyleTrigger, FrameType.Theme,                FramePriority.StyleTriggerTheme)]
+    [InlineData(BindingPriority.Template,     FrameType.Style,                FramePriority.Template)]
+    [InlineData(BindingPriority.Template,     FrameType.TemplatedParentTheme, FramePriority.TemplateTemplatedParentTheme)]
+    [InlineData(BindingPriority.Template,     FrameType.Theme,                FramePriority.TemplateTheme)]
+    [InlineData(BindingPriority.Style,        FrameType.Style,                FramePriority.Style)]
+    [InlineData(BindingPriority.Style,        FrameType.TemplatedParentTheme, FramePriority.StyleTemplatedParentTheme)]
+    [InlineData(BindingPriority.Style,        FrameType.Theme,                FramePriority.StyleTheme)]
+    internal void BindingPriority_To_FramePriority(BindingPriority priority, FrameType type, FramePriority expected)
+    {
+        Assert.Equal(expected, priority.ToFramePriority(type));
+    }
+
+    [Theory]
+    [InlineData(FramePriority.Animation,                        FrameType.Style,                true)]
+    [InlineData(FramePriority.StyleTrigger,                     FrameType.Style,                true)]
+    [InlineData(FramePriority.Template,                         FrameType.Style,                true)]
+    [InlineData(FramePriority.Style,                            FrameType.Style,                true)]
+    [InlineData(FramePriority.AnimationTemplatedParentTheme,    FrameType.TemplatedParentTheme, true)]
+    [InlineData(FramePriority.StyleTriggerTemplatedParentTheme, FrameType.TemplatedParentTheme, true)]
+    [InlineData(FramePriority.TemplateTemplatedParentTheme,     FrameType.TemplatedParentTheme, true)]
+    [InlineData(FramePriority.StyleTemplatedParentTheme,        FrameType.TemplatedParentTheme, true)]
+    [InlineData(FramePriority.AnimationTheme,                   FrameType.Theme,                true)]
+    [InlineData(FramePriority.StyleTriggerTheme,                FrameType.Theme,                true)]
+    [InlineData(FramePriority.TemplateTheme,                    FrameType.Theme,                true)]
+    [InlineData(FramePriority.StyleTheme,                       FrameType.Theme,                true)]
+    //
+    [InlineData(FramePriority.Style,                            FrameType.TemplatedParentTheme, false)]
+    [InlineData(FramePriority.Style,                            FrameType.Theme,                false)]
+    [InlineData(FramePriority.StyleTheme,                       FrameType.TemplatedParentTheme, false)]
+    [InlineData(FramePriority.StyleTheme,                       FrameType.Style,                false)]
+    internal void FramePriority_Is_FrameType(FramePriority priority, FrameType type, bool expected)
+    {
+        Assert.Equal(expected, priority.IsType(type));
+    }
+}