voluptasquisquam/src/image/roi/creator/__tests__/fromPoints.js

Image processing and manipulation in JavaScript

import fromPoints from '../fromPoints';
import {Image} from 'test/common';
import 'should';

describe('we check createROIMapFromPixels', function () {
    it('should yield the right map', function () {
        let image = new Image(5, 5, {kind: 'GREY'});

        let pixels = [[1, 1], [3, 2], [4, 4], [5, 0]];

        let mapData = fromPoints.call(image, pixels, {kind: 'smallCross'}).data;

        Array.from(mapData).should.eql([
            0, 1, 0, 0, 4,
            1, 1, 1, 2, 0,
            0, 1, 2, 2, 2,
            0, 0, 0, 2, 3,
            0, 0, 0, 3, 3
        ]);
    });
});