public void LineSegment_IntersectWithSegment_ShouldThrowException_IfPassedSegmentIsNull()
{
LineSegment lineSegment1 = new LineSegment(Point.MakePointWithInches(1, 1, 1));
LineSegment lineSegment2 = null;
Action intersect = () => lineSegment1.IntersectWithSegment(lineSegment2);
intersect.ShouldThrow<Exception>();
}
public void LineSegment_IntersectWithSegment_ShouldReturnLineIntersect()
{
LineSegment lineSegment1 = new LineSegment(Point.MakePointWithInches(1, 1, 1));
LineSegment lineSegment2 = new LineSegment(Point.MakePointWithInches(1, 0, 0), Point.MakePointWithInches(0, 1, 1));
Line lineSegmentToLine2 = new Line(lineSegment2);
lineSegment1.IntersectWithSegment(lineSegment2).Should().Be(lineSegment1.IntersectWithLine(lineSegmentToLine2));
}
public void LineSegment_IntersectWithSegment_ShouldReturnNull_IfLinesFromLineSegmentsDoNotIntersect()
{
LineSegment lineSegment1 = new LineSegment(Point.MakePointWithInches(1, 1, 1));
LineSegment lineSegment2 = new LineSegment(Point.MakePointWithInches(0, 0, 1), Point.MakePointWithInches(1, 1, 2));
lineSegment1.IntersectWithSegment(lineSegment2).Should().BeNull();
}
public void LineSegment_IntersectWithSegment_ShouldReturnNull_IfLinesFromLineSegmentsIntersectButNotOnInstanceSegment()
{
LineSegment lineSegment1 = new LineSegment(Point.MakePointWithInches(0, 3, 0), Point.MakePointWithInches(1, 2, 1));
LineSegment lineSegment2 = new LineSegment(Point.MakePointWithInches(3, 3, 3));
lineSegment1.IntersectWithSegment(lineSegment2).Should().BeNull();
}
public void LineSegment_IntersectWithSegment_ShouldReturnEndPoint_IfEndPointIsBaseOrEndPointOfOtherSegment()
{
LineSegment lineSegment1 = new LineSegment(Point.MakePointWithInches(2, 2, 2), Point.MakePointWithInches(1, 1, 1));
LineSegment lineSegment2 = new LineSegment(Point.MakePointWithInches(-1, -1, -1), Point.MakePointWithInches(1, 1, 1));
lineSegment1.IntersectWithSegment(lineSegment2).Should().Be(lineSegment1.EndPoint);
}
