Accord.Tests.Math.Matrix4x4Test.CreateFromRowsTest C# (CSharp) Method

        public void CreateFromRowsTest()
        {
            Vector4 row0 = new Vector4(1, 2, 3, 4);
            Vector4 row1 = new Vector4(5, 6, 7, 8);
            Vector4 row2 = new Vector4(9, 10, 11, 12);
            Vector4 row3 = new Vector4(13, 14, 15, 16);
            Matrix4x4 matrix = Matrix4x4.CreateFromRows(row0, row1, row2, row3);

            float[] array = matrix.ToArray();

            for (int i = 0; i < 16; i++)
            {
                Assert.AreEqual(array[i], (float)(i + 1));
            }

            Assert.AreEqual(row0, matrix.GetRow(0));
            Assert.AreEqual(row1, matrix.GetRow(1));
            Assert.AreEqual(row2, matrix.GetRow(2));
            Assert.AreEqual(row3, matrix.GetRow(3));


            Assert.Throws<ArgumentException>(() =>
            {
                matrix.GetRow(-1);
            }
            );

            Assert.Throws<ArgumentException>(() =>
            {
                matrix.GetRow(4);
            }
            );
        }