Test for matrix inversion

4 years ago · eaf8fec5cf
1 changed files with 10 additions and 0 deletions
--- 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()
        {