ole/build/helper/getIntersectedLinesAndPoint.test.js

OpenLayers Editor

/* eslint-disable import/no-extraneous-dependencies */
import { expect, test, describe, beforeEach } from 'vitest';
import LineString from 'ol/geom/LineString';
import Feature from 'ol/Feature';
import getIntersectedLinesAndPoint from './getIntersectedLinesAndPoint';
describe('getIntersectedLinesAndPoint', () => {
    let map;
    beforeEach(() => {
        // In the test we use pixel as coordinates.
        map = {
            getPixelFromCoordinate: (coord) => coord,
        };
    });
    test('returns empty array because lines are not intersected', () => {
        const line1 = new Feature(new LineString([
            [0, 0],
            [1, 1],
        ]));
        const line2 = new Feature(new LineString([
            [3, 4],
            [5, 7],
        ]));
        const intersectedLines = getIntersectedLinesAndPoint([0, 0], [line1, line2], map, 0);
        expect(intersectedLines).toEqual([]);
    });
    test('returns empty array because the tolerance is not big enough', () => {
        const line1 = new Feature(new LineString([
            [0, 0],
            [1, 1],
        ]));
        const line2 = new Feature(new LineString([
            [0, 1],
            [1, 0],
        ]));
        const intersectedLines = getIntersectedLinesAndPoint([0, 0], [line1, line2], map, 0);
        expect(intersectedLines).toEqual([]);
    });
    test('returns intersected lines and the intersection point', () => {
        const line1 = new Feature(new LineString([
            [0, 0],
            [1, 1],
        ]));
        const line2 = new Feature(new LineString([
            [0, 1],
            [1, 0],
        ]));
        const intersectedLines = getIntersectedLinesAndPoint([0, 0], [line1, line2], map, 1);
        expect(intersectedLines[0]).toBe(line1);
        expect(intersectedLines[1]).toBe(line2);
        expect(intersectedLines[2].getGeometry().getCoordinates()).toEqual([
            0.5, 0.5,
        ]);
    });
});