Initial Watermaps import
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BuTzZ
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import { describe, expect, it } from "vitest";
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import { buildRoute } from "@watermaps/shared";
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import {
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fairwayRowsToGraph,
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mergeConnectedFairwayGraphs,
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overpassToGraph
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} from "../src/services/fairways.js";
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describe("fairway graph extraction", () => {
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it("builds a routable graph from PostGIS fairway rows", () => {
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const graph = fairwayRowsToGraph(
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[
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{
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id: "1",
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source: "osm",
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source_id: "way-1",
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name: "Harbour Reach",
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min_depth_m: "4.2",
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geometry: {
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type: "LineString",
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coordinates: [
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[10, 54],
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[10.04, 54.02]
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]
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}
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},
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{
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id: "2",
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source: "osm",
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source_id: "way-2",
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name: "Outer Reach",
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min_depth_m: 4.2,
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geometry: {
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type: "LineString",
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coordinates: [
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[10.04, 54.02],
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[10.1, 54.04]
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]
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}
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}
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],
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[9.9, 53.9, 10.2, 54.1]
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);
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expect(graph).not.toBeNull();
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const route = buildRoute(
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{
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start: { lat: 54, lon: 10 },
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destination: { lat: 54.04, lon: 10.1 },
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vesselProfile: { draughtM: 1.2, safetyReserveM: 0.4 }
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},
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graph ?? undefined
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);
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expect(route?.routingMode).toBe("fairway");
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expect(route?.dataSources).toContain("fairway-graph:postgis-9.900-53.900-10.200-54.100");
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expect(route?.dataSources).toContain("postgis-osm");
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});
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it("routes the iPhone Emden coordinates through intermediate fairway vertices", () => {
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const start = { lat: 53.3306, lon: 7.1752 };
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const destination = { lat: 53.6741, lon: 7.1474 };
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const graph = fairwayRowsToGraph(
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[
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{
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id: "emden-main-reach",
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source: "osm",
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source_id: "way-main",
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name: "Ems Fahrwasser",
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min_depth_m: null,
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geometry: {
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type: "LineString",
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coordinates: [
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[7.1751368, 53.3331995],
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[7.16, 53.42],
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[7.1474, 53.55],
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[7.18, 53.61]
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]
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}
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},
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{
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id: "busetief-branch",
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source: "osm",
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source_id: "way-branch",
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name: "Busetief",
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min_depth_m: null,
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geometry: {
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type: "LineString",
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coordinates: [
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[7.1474, 53.55],
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[7.1414995, 53.6668156]
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]
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}
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}
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],
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[6.9974, 53.1806, 7.3252, 53.8241]
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);
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expect(graph).not.toBeNull();
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const route = buildRoute(
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{
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start,
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destination,
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vesselProfile: { draughtM: 1.4, safetyReserveM: 0.5, cruiseSpeedKn: 12 }
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},
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graph ?? undefined
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);
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expect(route).not.toBeNull();
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expect(route?.routingMode).toBe("fairway");
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expect(route?.dataSources).toContain("postgis-osm");
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expect(route?.geometry.coordinates[0]).toEqual([start.lon, start.lat]);
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expect(route?.geometry.coordinates.at(-1)).toEqual([destination.lon, destination.lat]);
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expect(route?.geometry.coordinates.some(([lon, lat]) => lon === 7.1474 && lat === 53.55)).toBe(true);
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});
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it("builds a graph from OSM/OpenSeaMap Overpass ways", () => {
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const graph = overpassToGraph(
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{
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elements: [
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{
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type: "way",
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id: 123,
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tags: {
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"seamark:type": "navigation_line",
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"seamark:navigation_line:minimum_depth": "3.5"
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},
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geometry: [
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{ lat: 54, lon: 10 },
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{ lat: 54.02, lon: 10.05 }
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]
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}
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]
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},
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[9.9, 53.9, 10.1, 54.1]
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);
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expect(graph).not.toBeNull();
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expect(graph?.edges[0]?.source).toBe("osm-overpass-seamarks");
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expect(graph?.edges[0]?.minDepthM).toBe(3.5);
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});
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it("accepts navigable canals but rejects explicitly closed waterways", () => {
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const graph = overpassToGraph(
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{
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elements: [
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{
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type: "way",
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id: 201,
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tags: { waterway: "canal", boat: "yes", name: "Datteln-Hamm-Kanal" },
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geometry: [
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{ lat: 51.65, lon: 7.35 },
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{ lat: 51.66, lon: 7.4 }
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]
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},
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{
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type: "way",
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id: 202,
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tags: { waterway: "canal", boat: "no", name: "Gesperrter Kanal" },
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geometry: [
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{ lat: 51.66, lon: 7.4 },
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{ lat: 51.67, lon: 7.45 }
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]
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}
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]
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},
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[7.3, 51.6, 7.5, 51.7]
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);
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expect(graph).not.toBeNull();
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expect(graph?.edges).toHaveLength(1);
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expect(graph?.edges[0]?.name).toBe("Datteln-Hamm-Kanal");
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});
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it("topologically joins graph fragments from PostGIS and live data", () => {
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const first = fairwayRowsToGraph(
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[
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{
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id: "north",
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source: "osm",
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source_id: "north",
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name: "Dortmund-Ems-Kanal",
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min_depth_m: null,
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geometry: {
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type: "LineString",
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coordinates: [
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[7.3, 52.1],
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[7.35, 52]
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]
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}
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}
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],
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[7.2, 51.8, 7.6, 52.2]
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);
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const second = overpassToGraph(
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{
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elements: [
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{
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type: "way",
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id: 301,
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tags: { waterway: "canal", boat: "yes", name: "Datteln-Hamm-Kanal" },
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geometry: [
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{ lat: 52, lon: 7.35 },
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{ lat: 51.9, lon: 7.5 }
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]
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}
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]
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},
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[7.2, 51.8, 7.6, 52.2]
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);
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const graph = mergeConnectedFairwayGraphs([first!, second!]);
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const route = buildRoute(
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{
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start: { lat: 52.1, lon: 7.3 },
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destination: { lat: 51.9, lon: 7.5 },
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vesselProfile: { draughtM: 1.2, safetyReserveM: 0.3 }
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},
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graph ?? undefined
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);
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expect(route).not.toBeNull();
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expect(route?.dataSources).toContain("postgis-osm");
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expect(route?.dataSources).toContain("osm-overpass-waterway-canal");
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});
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it("carries OSM vessel restrictions into the routing graph", () => {
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const graph = fairwayRowsToGraph(
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[
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{
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id: "restricted",
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source: "osm",
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source_id: "way-restricted",
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name: "Niedrige Durchfahrt",
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min_depth_m: "3.0",
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properties: { maxheight: "2.4 m", maxwidth: "3.2", maxdraft: "1.8", oneway: "yes" },
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geometry: {
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type: "LineString",
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coordinates: [
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[7, 52],
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[7.04, 52]
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]
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}
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}
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],
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[6.9, 51.9, 7.1, 52.1]
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);
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expect(graph?.edges[0]).toMatchObject({
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maxAirDraftM: 2.4,
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maxBeamM: 3.2,
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maxDraughtM: 1.8,
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oneway: true
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});
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expect(
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buildRoute(
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{
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start: { lat: 52, lon: 7 },
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destination: { lat: 52, lon: 7.04 },
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vesselProfile: { draughtM: 1.4, safetyReserveM: 0.3, airDraftM: 2.5, beamM: 3 }
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},
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graph ?? undefined
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)
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).toBeNull();
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});
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});
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