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_IntersectWithLine_ShouldThrowNullPointerException_IfLineIsNull()
{
LineSegment lineSegment = new LineSegment(Point.MakePointWithInches(1, 1, 1));
Line line = null;
Action intersect = () => lineSegment.IntersectWithLine(line);
intersect.ShouldThrow<Exception>();
}
public void LineSegment_IntersectWithLine_ShouldReturnNull_IfLinesIntersectButNotOnSegment()
{
LineSegment lineSegment = new LineSegment(Point.MakePointWithInches(1, 1, 1), Point.MakePointWithInches(2, 2, 2));
Line line = new Line(Point.MakePointWithInches(0, 0, 1), Point.MakePointWithInches(1, 1, 0));
lineSegment.IntersectWithLine(line).Should().BeNull();
}
public void LineSegment_IntersectWithLine_ShouldBeLineIntersection_IfLineSegmentEndPointIsOnLine()
{
LineSegment lineSegment = new LineSegment(Point.MakePointWithInches(1, 1, 1));
Line line = new Line(Point.MakePointWithInches(0, 0, 1), Point.MakePointWithInches(0, 0, 2));
Line lineSegmentToLine = new Line(lineSegment);
lineSegment.IntersectWithLine(line).Should().Be(lineSegmentToLine.IntersectWithLine(line));
}
public void LineSegment_IntersectWithLine_ShouldEqualLineIntersect()
{
LineSegment lineSegment = new LineSegment(Point.MakePointWithInches(1, 1, 1));
Line line = new Line(Point.MakePointWithInches(0, 0, 1), Point.MakePointWithInches(1, 1, 0));
Line lineSegmentToLine = new Line(lineSegment);
lineSegment.IntersectWithLine(line).Should().Be(lineSegmentToLine.IntersectWithLine(line));
}
