Tests.VertexDataTest.TestTransformVertices C# (CSharp) Method

        public void TestTransformVertices()
        {
            VertexData vertexData = new VertexData(3, true);

            Vertex defaultVertex = DefaultVertex();
            Vertex secondVertex = DefaultVertex();
            secondVertex.Position.X = 1.0f;
            secondVertex.Position.Y = 2.0f;

            vertexData.Vertices[0] = defaultVertex;
            vertexData.Vertices[1] = secondVertex;
            vertexData.Vertices[2] = defaultVertex;

            Matrix matrix = Matrix.Create();
            matrix.Rotate((float)Math.PI);
           
            vertexData.TransformVertices(matrix, 1, 1);

            Vertex expected = DefaultVertex();
            expected.Position.X = -1.0f;
            expected.Position.Y = -2.0f;

            CompareVertex(vertexData.Vertices[0], DefaultVertex());
            CompareVertex(vertexData.Vertices[1], expected);
            CompareVertex(vertexData.Vertices[2], DefaultVertex());
        }