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-rw-r--r--modules/Util.test.js23
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diff --git a/modules/Util.test.js b/modules/Util.test.js
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-import { test, assert} from './test-assert.js';
-import { useAverage } from './Util.js';
-
-
-test('Average correctly accumulates an average', () => {
- let [avg, avg_append] = useAverage();
- let data = [];
- for (let i=0; i<5000; i++) {
- let d = Math.random();
- data.push(d);
- avg_append(d);
- }
-
- let manual_average = 0;
- for (let d of data) manual_average += d;
- manual_average /= data.length;
-
- const precision = (decimalPlaces, num) => {
- const theta = 10**decimalPlaces;
- return Math.floor(num * theta) / theta;
- };
- assert.equal(precision(5, avg()), precision(5, manual_average));
-});