public void Polygon_IntersectWithLine()
{
List<LineSegment> lineSegments = new List<LineSegment>();
lineSegments.Add(new LineSegment(Point.Origin, Point.MakePointWithInches(0, 2, 0)));
lineSegments.Add(new LineSegment(Point.MakePointWithInches(-3, 2, 0), Point.MakePointWithInches(0, 2, 0)));
lineSegments.Add(new LineSegment(Point.MakePointWithInches(-3, 2, 0), Point.Origin));
Polygon testPolygon = new Polygon(lineSegments);
Line testIntersect = new Line(Point.MakePointWithInches(-1.5, 1, 0), Point.MakePointWithInches(-3, -2, 1));
Line testIntersectSide = new Line(Point.MakePointWithInches(0, 1, 0), Point.MakePointWithInches(2, -1, 1));
Line noIntersect = new Line(Point.MakePointWithInches(-4, 1, 0), Point.MakePointWithInches(-5, -2, 1));
Point intersect = testPolygon.IntersectWithLine(testIntersect);
Point intersectSide = testPolygon.IntersectWithLine(testIntersectSide);
Point none = testPolygon.IntersectWithLine(noIntersect);
(intersect == Point.MakePointWithInches(-1.5, 1, 0)).Should().BeTrue();
(intersectSide == Point.MakePointWithInches(0, 1, 0)).Should().BeTrue();
(none == null).Should().BeTrue();
}
