Add unit tests for no-go area round-trip and waypoint extraction
15 tests covering: - No-go area generation (namespace, structure, multiple areas) - No-go area parsing (namespaced, non-namespaced, min 3 points, empty) - Full round-trip: generate → parse → verify no-go areas match - Complete planning state round-trip (waypoints + tracks + no-go areas) - extractWaypoints: explicit waypoints, multi-segment, Douglas-Peucker, empty tracks Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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Ullrich Schäfer
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packages/gpx/src/nogo.test.ts
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packages/gpx/src/nogo.test.ts
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import { describe, it, expect } from "vitest";
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import { generateGpx } from "./generate.ts";
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import { parseGpxAsync } from "./parse.ts";
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import { extractWaypoints } from "./waypoints.ts";
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describe("no-go area generation", () => {
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it("includes trails namespace when no-go areas are present", () => {
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const gpx = generateGpx({
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noGoAreas: [{ points: [{ lat: 52, lon: 13 }, { lat: 51, lon: 13 }, { lat: 51, lon: 14 }] }],
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});
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expect(gpx).toContain('xmlns:trails="https://trails.cool/gpx/1"');
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});
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it("does not include trails namespace without no-go areas", () => {
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const gpx = generateGpx({ name: "test" });
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expect(gpx).not.toContain("xmlns:trails");
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expect(gpx).not.toContain("<extensions>");
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});
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it("generates correct extension structure", () => {
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const gpx = generateGpx({
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noGoAreas: [{ points: [{ lat: 52.5, lon: 13.3 }, { lat: 52.4, lon: 13.4 }, { lat: 52.3, lon: 13.2 }] }],
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});
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expect(gpx).toContain("<extensions>");
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expect(gpx).toContain("<trails:planning>");
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expect(gpx).toContain("<trails:nogo>");
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expect(gpx).toContain('<trails:point lat="52.5" lon="13.3"/>');
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expect(gpx).toContain('<trails:point lat="52.4" lon="13.4"/>');
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expect(gpx).toContain('<trails:point lat="52.3" lon="13.2"/>');
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});
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it("generates multiple no-go areas", () => {
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const gpx = generateGpx({
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noGoAreas: [
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{ points: [{ lat: 1, lon: 2 }, { lat: 3, lon: 4 }, { lat: 5, lon: 6 }] },
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{ points: [{ lat: 7, lon: 8 }, { lat: 9, lon: 10 }, { lat: 11, lon: 12 }] },
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],
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});
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const matches = gpx.match(/<trails:nogo>/g);
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expect(matches).toHaveLength(2);
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});
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});
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describe("no-go area parsing", () => {
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it("parses namespaced no-go areas", async () => {
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const gpx = `<?xml version="1.0" encoding="UTF-8"?>
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<gpx version="1.1" creator="trails.cool"
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xmlns="http://www.topografix.com/GPX/1/1"
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xmlns:trails="https://trails.cool/gpx/1">
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<extensions>
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<trails:planning>
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<trails:nogo>
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<trails:point lat="52.5" lon="13.3"/>
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<trails:point lat="52.4" lon="13.4"/>
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<trails:point lat="52.3" lon="13.2"/>
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</trails:nogo>
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</trails:planning>
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</extensions>
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</gpx>`;
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const data = await parseGpxAsync(gpx);
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expect(data.noGoAreas).toHaveLength(1);
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expect(data.noGoAreas[0]!.points).toHaveLength(3);
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expect(data.noGoAreas[0]!.points[0]).toEqual({ lat: 52.5, lon: 13.3 });
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});
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it("parses non-namespaced no-go areas", async () => {
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const gpx = `<?xml version="1.0" encoding="UTF-8"?>
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<gpx version="1.1" xmlns="http://www.topografix.com/GPX/1/1">
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<extensions>
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<planning>
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<nogo>
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<point lat="52.5" lon="13.3"/>
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<point lat="52.4" lon="13.4"/>
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<point lat="52.3" lon="13.2"/>
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</nogo>
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</planning>
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</extensions>
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</gpx>`;
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const data = await parseGpxAsync(gpx);
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expect(data.noGoAreas).toHaveLength(1);
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expect(data.noGoAreas[0]!.points).toHaveLength(3);
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});
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it("rejects no-go areas with fewer than 3 points", async () => {
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const gpx = `<?xml version="1.0" encoding="UTF-8"?>
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<gpx version="1.1" xmlns="http://www.topografix.com/GPX/1/1">
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<extensions><planning>
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<nogo><point lat="1" lon="2"/><point lat="3" lon="4"/></nogo>
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</planning></extensions>
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</gpx>`;
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const data = await parseGpxAsync(gpx);
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expect(data.noGoAreas).toHaveLength(0);
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});
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it("returns empty array when no extensions", async () => {
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const gpx = `<?xml version="1.0" encoding="UTF-8"?>
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<gpx version="1.1" xmlns="http://www.topografix.com/GPX/1/1">
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<trk><trkseg><trkpt lat="52" lon="13"/></trkseg></trk>
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</gpx>`;
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const data = await parseGpxAsync(gpx);
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expect(data.noGoAreas).toHaveLength(0);
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});
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it("parses multiple no-go areas", async () => {
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const gpx = `<?xml version="1.0" encoding="UTF-8"?>
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<gpx version="1.1" xmlns="http://www.topografix.com/GPX/1/1">
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<extensions><planning>
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<nogo>
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<point lat="1" lon="2"/><point lat="3" lon="4"/><point lat="5" lon="6"/>
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</nogo>
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<nogo>
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<point lat="7" lon="8"/><point lat="9" lon="10"/><point lat="11" lon="12"/>
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</nogo>
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</planning></extensions>
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</gpx>`;
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const data = await parseGpxAsync(gpx);
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expect(data.noGoAreas).toHaveLength(2);
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});
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});
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describe("no-go area round-trip", () => {
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it("round-trips no-go areas through generate and parse", async () => {
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const noGoAreas = [
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{ points: [{ lat: 52.5, lon: 13.3 }, { lat: 52.4, lon: 13.4 }, { lat: 52.3, lon: 13.2 }] },
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{ points: [{ lat: 48.1, lon: 11.5 }, { lat: 48.0, lon: 11.6 }, { lat: 47.9, lon: 11.4 }] },
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];
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const gpx = generateGpx({
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name: "No-go test",
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tracks: [[{ lat: 52.5, lon: 13.3, ele: 34 }, { lat: 48.1, lon: 11.5, ele: 519 }]],
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noGoAreas,
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});
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const parsed = await parseGpxAsync(gpx);
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expect(parsed.name).toBe("No-go test");
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expect(parsed.noGoAreas).toHaveLength(2);
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expect(parsed.noGoAreas[0]!.points).toEqual(noGoAreas[0]!.points);
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expect(parsed.noGoAreas[1]!.points).toEqual(noGoAreas[1]!.points);
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});
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it("round-trips complete planning state", async () => {
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const gpx = generateGpx({
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name: "Full plan",
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waypoints: [{ lat: 52.5, lon: 13.3, name: "Berlin" }, { lat: 48.1, lon: 11.5, name: "Munich" }],
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tracks: [[{ lat: 52.5, lon: 13.3, ele: 34 }, { lat: 50.0, lon: 12.0, ele: 300 }, { lat: 48.1, lon: 11.5, ele: 519 }]],
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noGoAreas: [{ points: [{ lat: 51, lon: 12 }, { lat: 50, lon: 13 }, { lat: 50, lon: 11 }] }],
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});
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const parsed = await parseGpxAsync(gpx);
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expect(parsed.name).toBe("Full plan");
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expect(parsed.waypoints).toHaveLength(2);
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expect(parsed.tracks[0]).toHaveLength(3);
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expect(parsed.noGoAreas).toHaveLength(1);
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expect(parsed.distance).toBeGreaterThan(0);
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});
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});
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describe("extractWaypoints", () => {
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it("returns explicit waypoints when present", async () => {
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const gpx = `<?xml version="1.0" encoding="UTF-8"?>
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<gpx version="1.1" xmlns="http://www.topografix.com/GPX/1/1">
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<wpt lat="52.52" lon="13.405"><name>Berlin</name></wpt>
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<wpt lat="48.137" lon="11.576"><name>Munich</name></wpt>
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<trk><trkseg>
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<trkpt lat="52.52" lon="13.405"/>
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<trkpt lat="48.137" lon="11.576"/>
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</trkseg></trk>
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</gpx>`;
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const data = await parseGpxAsync(gpx);
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const wps = extractWaypoints(data);
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expect(wps).toHaveLength(2);
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expect(wps[0]!.name).toBe("Berlin");
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});
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it("extracts segment endpoints for multi-segment tracks", async () => {
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const gpx = `<?xml version="1.0" encoding="UTF-8"?>
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<gpx version="1.1" xmlns="http://www.topografix.com/GPX/1/1">
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<trk>
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<trkseg><trkpt lat="52" lon="13"/><trkpt lat="51" lon="13"/></trkseg>
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<trkseg><trkpt lat="51" lon="13"/><trkpt lat="50" lon="12"/></trkseg>
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<trkseg><trkpt lat="50" lon="12"/><trkpt lat="48" lon="11"/></trkseg>
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</trk>
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</gpx>`;
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const data = await parseGpxAsync(gpx);
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const wps = extractWaypoints(data);
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// Start of each segment (deduped) + end of last = 52, 51, 50, 48
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expect(wps.length).toBeGreaterThanOrEqual(3);
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expect(wps[0]).toEqual({ lat: 52, lon: 13 });
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});
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it("uses Douglas-Peucker for single-segment tracks", async () => {
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// Build a track with a clear deviation in the middle
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const points = [];
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for (let i = 0; i <= 10; i++) {
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const lat = 52 - i * 0.4; // straight south
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const lon = i === 5 ? 14.5 : 13; // big eastward deviation at midpoint
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points.push(`<trkpt lat="${lat}" lon="${lon}"/>`);
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}
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const gpx = `<?xml version="1.0" encoding="UTF-8"?>
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<gpx version="1.1" xmlns="http://www.topografix.com/GPX/1/1">
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<trk><trkseg>${points.join("")}</trkseg></trk>
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</gpx>`;
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const data = await parseGpxAsync(gpx);
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const wps = extractWaypoints(data);
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// Should include start, end, and the midpoint deviation
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expect(wps.length).toBeGreaterThanOrEqual(3);
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// The deviated midpoint should be preserved
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const hasDeviation = wps.some((w) => Math.abs(w.lon - 14.5) < 0.01);
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expect(hasDeviation).toBe(true);
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});
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it("returns empty for empty tracks", async () => {
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const gpx = `<?xml version="1.0" encoding="UTF-8"?>
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<gpx version="1.1" xmlns="http://www.topografix.com/GPX/1/1">
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<trk><trkseg></trkseg></trk>
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</gpx>`;
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const data = await parseGpxAsync(gpx);
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const wps = extractWaypoints(data);
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expect(wps).toHaveLength(0);
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});
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});
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