47 lines
2.1 KiB
JavaScript
47 lines
2.1 KiB
JavaScript
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const assert = require('node:assert/strict');
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const fs = require('node:fs');
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const path = require('node:path');
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const vm = require('node:vm');
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const template = fs.readFileSync(path.join(__dirname, '../templates/app/control/index.html'), 'utf8');
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assert.match(template, /openYoloPreview\('\+z\.id\+'\)/);
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assert.match(template, /id="yoloPreviewCanvas"/);
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assert.match(template, /openPreviewStart/);
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assert.match(template, /openPreviewData/);
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assert.match(template, /openPreviewStop/);
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assert.match(template, /ResizeObserver/);
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assert.match(template, /requestAnimationFrame\(animateYoloOverlay\)/);
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const start = template.indexOf('function computeContainRect(');
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const end = template.indexOf('function resizeYoloCanvas(');
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const context = {};
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vm.createContext(context);
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vm.runInContext(template.slice(start, end), context);
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const wide = context.computeContainRect(1000, 1000, 16, 9);
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assert.equal(wide.width, 1000);
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assert.equal(Math.round(wide.height), 563);
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assert.equal(Math.round(wide.y), 219);
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const tall = context.computeContainRect(1000, 500, 4, 3);
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assert.equal(Math.round(tall.height), 500);
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assert.equal(Math.round(tall.width), 667);
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assert.equal(Math.round(tall.x), 167);
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const projectStart = template.indexOf('function projectTrackBox(');
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const projectEnd = template.indexOf('function smoothTrackBox(');
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vm.runInContext(template.slice(projectStart, projectEnd), context);
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const moving = context.projectTrackBox({
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box: [.1, .2, .2, .4], velocity: [.1, 0, .1, 0], observed: true,
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}, 10, 10.5);
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assert.ok(Math.abs(moving[0] - .15) < 1e-9);
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assert.ok(Math.abs(moving[2] - .25) < 1e-9);
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const runaway = context.projectTrackBox({
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box: [.1, .2, .2, .4], velocity: [10, 10, 10, 10], observed: true,
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}, 10, 20);
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assert.ok(runaway.every(v => v >= 0 && v <= 1));
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assert.ok(runaway[0] < .3, 'prediction displacement must be capped');
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const retained = context.projectTrackBox({
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box: [.1, .2, .2, .4], velocity: [1, 1, 1, 1], observed: false,
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}, 10, 11);
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assert.deepEqual(Array.from(retained), [.1, .2, .2, .4]);
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console.log('PASS: preview lifecycle, contain coordinates and motion projection');
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