public void NotIsInGrid(Direction direction, int expectedX, int expectedY)
{
// Arrange
var startPos = new Coord(2, 0);
var sit = new GridNavigator();
// Act
var result = sit.CheckDirection(grid, startPos, direction);
var(x, y) = result.NewPosition;
// Assert
result.IsInGrid.Should().BeFalse();
x.Should().Be(expectedX);
y.Should().Be(expectedY);
result.NewValue.Should().BeNull();
}