OpenCV/opencv/modules/js/test/test_utils.js

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// //////////////////////////////////////////////////////////////////////////////////////
// Author: Sajjad Taheri, University of California, Irvine. sajjadt[at]uci[dot]edu
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if (typeof module !== 'undefined' && module.exports) {
    // The environment is Node.js
    var cv = require('./opencv.js'); // eslint-disable-line no-var
}
QUnit.module('Utils', {});
QUnit.test('Test vectors', function(assert) {
    {
        let pointVector = new cv.PointVector();
        for (let i=0; i<100; ++i) {
            pointVector.push_back({x: i, y: 2*i});
        }

        assert.equal(pointVector.size(), 100);

        let index = 10;
        let item = pointVector.get(index);
        assert.equal(item.x, index);
        assert.equal(item.y, 2*index);

        index = 0;
        item = pointVector.get(index);
        assert.equal(item.x, index);
        assert.equal(item.y, 2*index);

        index = 99;
        item = pointVector.get(index);
        assert.equal(item.x, index);
        assert.equal(item.y, 2*index);

        pointVector.delete();
    }

    {
        let pointVector = new cv.PointVector();
        for (let i=0; i<100; ++i) {
            pointVector.push_back(new cv.Point(i, 2*i));
        }

        pointVector.push_back(new cv.Point());

        assert.equal(pointVector.size(), 101);

        let index = 10;
        let item = pointVector.get(index);
        assert.equal(item.x, index);
        assert.equal(item.y, 2*index);

        index = 0;
        item = pointVector.get(index);
        assert.equal(item.x, index);
        assert.equal(item.y, 2*index);

        index = 99;
        item = pointVector.get(index);
        assert.equal(item.x, index);
        assert.equal(item.y, 2*index);

        index = 100;
        item = pointVector.get(index);
        assert.equal(item.x, 0);
        assert.equal(item.y, 0);

        pointVector.delete();
    }
});
QUnit.test('Test Rect', function(assert) {
    let rectVector = new cv.RectVector();
    let rect = {x: 1, y: 2, width: 3, height: 4};
    rectVector.push_back(rect);
    rectVector.push_back(new cv.Rect());
    rectVector.push_back(new cv.Rect(rect));
    rectVector.push_back(new cv.Rect({x: 5, y: 6}, {width: 7, height: 8}));
    rectVector.push_back(new cv.Rect(9, 10, 11, 12));

    assert.equal(rectVector.size(), 5);

    let item = rectVector.get(0);
    assert.equal(item.x, 1);
    assert.equal(item.y, 2);
    assert.equal(item.width, 3);
    assert.equal(item.height, 4);

    item = rectVector.get(1);
    assert.equal(item.x, 0);
    assert.equal(item.y, 0);
    assert.equal(item.width, 0);
    assert.equal(item.height, 0);

    item = rectVector.get(2);
    assert.equal(item.x, 1);
    assert.equal(item.y, 2);
    assert.equal(item.width, 3);
    assert.equal(item.height, 4);

    item = rectVector.get(3);
    assert.equal(item.x, 5);
    assert.equal(item.y, 6);
    assert.equal(item.width, 7);
    assert.equal(item.height, 8);

    item = rectVector.get(4);
    assert.equal(item.x, 9);
    assert.equal(item.y, 10);
    assert.equal(item.width, 11);
    assert.equal(item.height, 12);

    rectVector.delete();
});
QUnit.test('Test Size', function(assert) {
    {
        let mat = new cv.Mat();
        mat.create({width: 5, height: 10}, cv.CV_8UC4);
        let size = mat.size();

        assert.ok(mat.type() === cv.CV_8UC4);
        assert.ok(size.height === 10);
        assert.ok(size.width === 5);
        assert.ok(mat.channels() === 4);

        mat.delete();
    }

    {
        let mat = new cv.Mat();
        mat.create(new cv.Size(5, 10), cv.CV_8UC4);
        let size = mat.size();

        assert.ok(mat.type() === cv.CV_8UC4);
        assert.ok(size.height === 10);
        assert.ok(size.width === 5);
        assert.ok(mat.channels() === 4);

        mat.delete();
    }
});


QUnit.test('test_rotated_rect', function(assert) {
    {
        let rect = {center: {x: 100, y: 100}, size: {height: 100, width: 50}, angle: 30};

        assert.equal(rect.center.x, 100);
        assert.equal(rect.center.y, 100);
        assert.equal(rect.angle, 30);
        assert.equal(rect.size.height, 100);
        assert.equal(rect.size.width, 50);
    }

    {
        let rect = new cv.RotatedRect();

        assert.equal(rect.center.x, 0);
        assert.equal(rect.center.y, 0);
        assert.equal(rect.angle, 0);
        assert.equal(rect.size.height, 0);
        assert.equal(rect.size.width, 0);

        let points = cv.RotatedRect.points(rect);

        assert.equal(points[0].x, 0);
        assert.equal(points[0].y, 0);
        assert.equal(points[1].x, 0);
        assert.equal(points[1].y, 0);
        assert.equal(points[2].x, 0);
        assert.equal(points[2].y, 0);
        assert.equal(points[3].x, 0);
        assert.equal(points[3].y, 0);
    }

    {
        let rect = new cv.RotatedRect({x: 100, y: 100}, {height: 100, width: 50}, 30);

        assert.equal(rect.center.x, 100);
        assert.equal(rect.center.y, 100);
        assert.equal(rect.angle, 30);
        assert.equal(rect.size.height, 100);
        assert.equal(rect.size.width, 50);

        let points = cv.RotatedRect.points(rect);

        assert.equal(points[0].x, cv.RotatedRect.boundingRect2f(rect).x);
        assert.equal(points[1].y, cv.RotatedRect.boundingRect2f(rect).y);
    }
});