tests_math_ellipse.test.js
import {Point2D} from '../../src/math/point';
import {Index} from '../../src/math/index';
import {Ellipse, getEllipseIndices} from '../../src/math/ellipse';
/**
* Tests for the 'math/ellipse.js' file.
*/
/* global QUnit */
QUnit.module('math');
/**
* Tests for {@link Ellipse}.
*
* @function module:tests/math~ellipse-class
*/
QUnit.test('Ellipse class - #DWV-REQ-UI-07-003 Draw ellipse',
function (assert) {
const center0 = new Point2D(0, 0);
const e0 = new Ellipse(center0, 2, 4);
// getCenter
assert.equal(e0.getCenter(), center0, 'getCenter');
// getA
assert.equal(e0.getA(), 2, 'getA');
// getB
assert.equal(e0.getB(), 4, 'getB');
// equals: true
const e1 = new Ellipse(center0, 2, 4);
assert.ok(e0.equals(e1), 'equal ellipses');
// equals: false a
const e20 = new Ellipse(center0, 3, 4);
assert.notOk(e0.equals(e20), 'non equal ellipses a');
// equals: false b
const e21 = new Ellipse(center0, 2, 5);
assert.notOk(e0.equals(e21), 'non equal ellipses b');
// equals: false radius
const center22 = new Point2D(1, 1);
const e22 = new Ellipse(center22, 2, 4);
assert.notOk(e0.equals(e22), 'non equal ellipses center');
// getSurface
assert.equal(e0.getSurface(), Math.PI * 2 * 4, 'getSurface');
// equals: true
const spacing2D = {x: 0.5, y: 0.25};
assert.equal(e0.getWorldSurface(spacing2D), Math.PI, 'getWorldSurface');
}
);
/**
* Tests for {@link Ellipse} quantification.
*
* @function module:tests/math~ellipse-quantification
*/
QUnit.test('Ellipse quantification - #DWV-REQ-UI-07-003 Draw ellipse',
function (assert) {
const center0 = new Point2D(2, 2);
const e0 = new Ellipse(center0, 1, 2);
// view controller
const mockVc0 = {
canQuantifyImage: function () {
return true;
},
get2DSpacing: function () {
return {x: 1, y: 1};
},
getCurrentPosition: function () {
return new Index([0, 0, 0]);
},
getImageVariableRegionValues: function () {
return [0, 1, 1, 0, 0, 1, 1, 0];
},
getPixelUnit: function () {
return '';
}
};
const theoQuant0 = {
min: {value: 0, unit: ''},
max: {value: 1, unit: ''},
mean: {value: 0.5, unit: ''},
stdDev: {value: 0.5, unit: ''},
surface: {value: 0.06283185307179587, unit: undefined}
};
const resQuant0 = e0.quantify(mockVc0);
assert.equal(resQuant0.min.value, theoQuant0.min.value, 'quant min');
assert.equal(resQuant0.max.value, theoQuant0.max.value, 'quant max');
assert.equal(resQuant0.mean.value, theoQuant0.mean.value, 'quant mean');
assert.equal(
resQuant0.stdDev.value, theoQuant0.stdDev.value, 'quant stdDev');
assert.equal(
resQuant0.surface.value, theoQuant0.surface.value, 'quant surface');
}
);
/**
* Tests for getEllipseIndices.
*
* @function module:tests/math~getEllipseIndices
*/
QUnit.test('Test getEllipseIndices', function (assert) {
const center00 = new Index([1, 1]);
const radius00 = [2, 2];
const dir00 = [0, 1];
const theoRes = [];
for (let i = 0; i <= radius00[0]; ++i) {
for (let j = 0; j <= radius00[1]; ++j) {
theoRes.push(new Index([i, j]));
}
}
let indices00 = getEllipseIndices(center00, radius00, dir00);
// sort
indices00.sort();
// filter duplicates
indices00 = indices00.filter(function (item, index, arr) {
return !item.equals(arr[index - 1]);
});
assert.ok(indices00.length, theoRes.length,
'index list and theo result have same size');
let isEqual = true;
for (let k = 0; k < indices00.length; ++k) {
if (!indices00[k].equals(theoRes[k])) {
isEqual = false;
break;
}
}
assert.ok(isEqual,
'index list and theo result have same values');
});