public void CheckStartOfNextRowIsCorrect()
{
// Arrange
var startPos = new Coord(1, 0);
var sit = new GridNavigator();
// Act
var result = sit.CheckStartOfNextRow(grid, startPos);
var(x, y) = result.NewPosition;
result.IsInGrid.Should().BeTrue();
x.Should().Be(0);
y.Should().Be(1);
result.NewValue.Should().Be('W');
}