import { binData } from '@/shared/charts/binCount'; describe.only('binCount.ts', () => { it('Bins data as expected', () => { const testData = [1, 1, 2, 3, 5, 6, 8, 10]; const res = binData(testData, 3); expect(res.length).toEqual(3); expect(res).toEqual([ [1, 4], [4.03, 2], [7.06, 2], ]); expect(res.map((v) => v[1]).reduce((a, b) => a + b)).toEqual(testData.length); const res1 = binData(testData, 5); // expect(res1.length).toEqual(5); expect(res1).toEqual([ [1, 3], [2.818, 1], [4.636, 2], [6.454, 1], [8.272, 1], ]); expect(res1.map((v) => v[1]).reduce((a, b) => a + b)).toEqual(testData.length); }); it('Bins data with negatives', () => { const testData = [1, 1, 2, 3, 5, 6, 8, -1, -3, -5, -4]; const res = binData(testData, 3); expect(res.length).toEqual(3); expect(res.map((v) => v[1]).reduce((a, b) => a + b)).toEqual(testData.length); expect(res).toEqual([ [-5, 4], [-0.623, 4], [3.753, 3], ]); }); it('Bins data performant', () => { const randomSize = 20000; const randomData = Array.from({ length: randomSize }, () => Math.floor(Math.random() * 10)); const startTime = performance.now(); const res = binData(randomData, 5); const endTime = performance.now(); expect(endTime - startTime).toBeLessThan(20); expect(res.map((v) => v[1]).reduce((a, b) => a + b)).toEqual(randomData.length); }); });