22 lines
685 B
TypeScript
22 lines
685 B
TypeScript
import { pointFrom } from "../src/point";
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import { lineSegment, lineSegmentIntersectionPoints } from "../src/segment";
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describe("line-segment intersections", () => {
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it("should correctly detect intersection", () => {
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expect(
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lineSegmentIntersectionPoints(
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lineSegment(pointFrom(0, 0), pointFrom(5, 0)),
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lineSegment(pointFrom(2, -2), pointFrom(3, 2)),
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),
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).toEqual(pointFrom(2.5, 0));
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});
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it("should correctly detect non-intersection", () => {
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expect(
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lineSegmentIntersectionPoints(
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lineSegment(pointFrom(0, 0), pointFrom(5, 0)),
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lineSegment(pointFrom(3, 1), pointFrom(4, 4)),
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),
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).toEqual(null);
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});
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});
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