public void ReturnsGridReferenceForTriangleF11Coordinates()
        {
            Grid grid = new Grid(60, 60, 10);

            Triangle triangle = new Triangle();

            triangle.AddAngleCoordinate(new Coordinate(50, 60));
            triangle.AddTopLeftCoordinate(new Coordinate(50, 50));
            triangle.AddBottomRightCoordinate(new Coordinate(60, 60));

            GridReferenceByTriangleCalculator calculator = new GridReferenceByTriangleCalculator();
            GridReference gridReference = calculator.Calculate(grid, triangle);

            Assert.Equal(11, gridReference.Column);
            Assert.Equal('F', gridReference.Row);
        }