From eaf8fec5cfaa6e195afeaedded1ac0234f73b4ec Mon Sep 17 00:00:00 2001
From: kaminova <flake@inbox@gmail.com>
Date: Fri, 3 Jun 2022 18:10:50 +0200
Subject: [PATCH] Test for matrix inversion

---
 tests/Avalonia.Base.UnitTests/Media/MatrixTests.cs | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/tests/Avalonia.Base.UnitTests/Media/MatrixTests.cs b/tests/Avalonia.Base.UnitTests/Media/MatrixTests.cs
index 98b1ff0e28..f25047c5c5 100644
--- a/tests/Avalonia.Base.UnitTests/Media/MatrixTests.cs
+++ b/tests/Avalonia.Base.UnitTests/Media/MatrixTests.cs
@@ -30,6 +30,16 @@ namespace Avalonia.Base.UnitTests.Media
             Assert.True(matrix.HasInverse);
         }
 
+        [Fact]
+        public void Invert_Should_Work()
+        {
+            var matrix = new Matrix(1, 2, 3, 0, 1, 4,5,6,0);
+            var inverted = matrix.Invert();
+            var expected = new Matrix(-24, 18, 5, 20, -15, -4, -5, 4, 1);
+
+            Assert.Equal(expected, inverted);
+        }
+
         [Fact]
         public void Can_Decompose_Translation()
         {