@geogirafe/lib-geoportal/tools/layers/simplemasklayer.spec.js

GeoGirafe is a flexible application to build online geoportals.

import { describe, expect, it } from 'vitest';
import SimpleMaskLayer from './simplemasklayer';
describe('SimpleMaskLayer', () => {
    describe('calculateBoxCorners', () => {
        it('correctly calculates corners of cut-out box', () => {
            let corners = SimpleMaskLayer.calculateBoxCorners(1000, 1000, 200, 400);
            expect(corners.length).toBe(4);
            expect(corners[0]).toEqual([400, 700]);
            expect(corners[2]).toEqual([600, 300]);
            corners = SimpleMaskLayer.calculateBoxCorners(1000, 1000, 1200, 1200);
            expect(corners.length).toBe(4);
            expect(corners[0]).toEqual([-100, 1100]);
            expect(corners[2]).toEqual([1100, -100]);
        });
        it('throws error if canvas size or cut-out size is less than 1', () => {
            expect(() => SimpleMaskLayer.calculateBoxCorners(0, 100, 200, 400)).toThrowError('Both totalWidth and totalHeight must be greater than 0.');
            expect(() => SimpleMaskLayer.calculateBoxCorners(1000, 1000, 0, 400)).toThrowError('Both boxWidth and boxHeight must be greater than 0.');
        });
    });
});