From ebc66cfaac0a5d5642fb6aa632743fdb71694035 Mon Sep 17 00:00:00 2001
From: Steven Kirk <grokys@gmail.com>
Date: Mon, 6 Nov 2017 23:36:30 +0100
Subject: [PATCH] Added failing test for #1255.

---
 tests/Avalonia.Controls.UnitTests/ClassesTests.cs | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/tests/Avalonia.Controls.UnitTests/ClassesTests.cs b/tests/Avalonia.Controls.UnitTests/ClassesTests.cs
index c9b9d9f82c..8d2e23d027 100644
--- a/tests/Avalonia.Controls.UnitTests/ClassesTests.cs
+++ b/tests/Avalonia.Controls.UnitTests/ClassesTests.cs
@@ -161,5 +161,15 @@ namespace Avalonia.Controls.UnitTests
 
             Assert.Equal(new[] { ":baz" }, target);
         }
+
+        [Fact]
+        public void RemoveAll_Should_Remove_Classes()
+        {
+            var target = new Classes("foo", "bar", "baz");
+
+            target.RemoveAll(new[] { "bar", "baz" });
+
+            Assert.Equal(new[] { "foo" }, target);
+        }
     }
 }