From 71d1f80d5a12e7dfdd20bbe987d141375f584ba1 Mon Sep 17 00:00:00 2001
From: Dariusz Komosinski <darek.komosinski@gmail.com>
Date: Tue, 11 Feb 2020 23:37:37 +0100
Subject: [PATCH] Benchmark attaching styles.

---
 .../Styling/StyleAttachBenchmark.cs           | 47 +++++++++++++++++++
 1 file changed, 47 insertions(+)
 create mode 100644 tests/Avalonia.Benchmarks/Styling/StyleAttachBenchmark.cs

diff --git a/tests/Avalonia.Benchmarks/Styling/StyleAttachBenchmark.cs b/tests/Avalonia.Benchmarks/Styling/StyleAttachBenchmark.cs
new file mode 100644
index 0000000000..7bccd65c81
--- /dev/null
+++ b/tests/Avalonia.Benchmarks/Styling/StyleAttachBenchmark.cs
@@ -0,0 +1,47 @@
+using System;
+using System.Runtime.CompilerServices;
+using Avalonia.Controls;
+using Avalonia.UnitTests;
+using BenchmarkDotNet.Attributes;
+
+namespace Avalonia.Benchmarks.Styling
+{
+    [MemoryDiagnoser]
+    public class StyleAttachBenchmark : IDisposable
+    {
+        private readonly IDisposable _app;
+        private readonly TestRoot _root;
+        private readonly TextBox _control;
+
+        public StyleAttachBenchmark()
+        {
+            _app = UnitTestApplication.Start(
+                TestServices.StyledWindow.With(
+                    renderInterface: new NullRenderingPlatform(),
+                    threadingInterface: new NullThreadingPlatform()));
+
+            _root = new TestRoot(true, null)
+            {
+                Renderer = new NullRenderer(),
+            };
+
+            _control = new TextBox();
+        }
+
+        [Benchmark]
+        [MethodImpl(MethodImplOptions.NoInlining)]
+        public void AttachTextBoxStyles()
+        {
+            var styles = UnitTestApplication.Current.Styles;
+
+            styles.Attach(_control, UnitTestApplication.Current);
+
+            styles.Detach();
+        }
+
+        public void Dispose()
+        {
+            _app.Dispose();
+        }
+    }
+}