public void BuildTest_CreateMatrixByExpressionXMulXPlusY_AssertMustBeEqual()
{
// Arrange
int[] arr = { 1, 2, 3, 4 };
Matrix <int> expected = new[, ]
{
{ 1, 4, 9, 16 },
};
// Act
var actual = BuildMatrix.Build(1, 4, (x, y) => x * x, arr);
// Assert
Assert.Equal(expected, actual);
}
