1 import { describe
, it
} from
'node:test';
3 import { expect
} from
'expect';
5 import { average
, median
, nthPercentile
, stdDeviation
} from
'../../src/utils/StatisticUtils';
7 await describe('StatisticUtils test suite', async () => {
8 await it('Verify average()', () => {
9 expect(average([])).toBe(0);
10 expect(average([0.08])).toBe(0.08);
11 expect(average([0.25, 4.75, 3.05, 6.04, 1.01, 2.02, 5.03])).toBe(3.1642857142857146);
12 expect(average([0.25, 4.75, 3.05, 6.04, 1.01, 2.02])).toBe(2.8533333333333335);
15 await it('Verify median()', () => {
16 expect(median([])).toBe(0);
17 expect(median([0.08])).toBe(0.08);
18 expect(median([0.25, 4.75, 3.05, 6.04, 1.01, 2.02, 5.03])).toBe(3.05);
19 expect(median([0.25, 4.75, 3.05, 6.04, 1.01, 2.02])).toBe(2.535);
22 await it('Verify nthPercentile()', () => {
23 expect(nthPercentile([], 25)).toBe(0);
24 expect(nthPercentile([0.08], 50)).toBe(0.08);
25 const array0
= [0.25, 4.75, 3.05, 6.04, 1.01, 2.02, 5.03];
26 expect(nthPercentile(array0
, 0)).toBe(0.25);
27 expect(nthPercentile(array0
, 50)).toBe(3.05);
28 expect(nthPercentile(array0
, 80)).toBe(4.974);
29 expect(nthPercentile(array0
, 85)).toBe(5.131);
30 expect(nthPercentile(array0
, 90)).toBe(5.434);
31 expect(nthPercentile(array0
, 95)).toBe(5.736999999999999);
32 expect(nthPercentile(array0
, 100)).toBe(6.04);
35 await it('Verify stdDeviation()', () => {
36 expect(stdDeviation([0.25, 4.75, 3.05, 6.04, 1.01, 2.02, 5.03])).toBe(2.0256064851429216);