public void Test_CheckStraightLine()
{
var grid = new int[6][];
grid[0] = new int[] { 1, 1 };
grid[1] = new int[] { 2, 2 };
grid[2] = new int[] { 3, 4 };
grid[3] = new int[] { 4, 5 };
grid[4] = new int[] { 5, 6 };
grid[5] = new int[] { 7, 7 };
var actual = sut.CheckStraightLine(grid);
Assert.False(actual);
}