test.ts

import { it } from '@jest/globals';
import { divide } from './it.each';

describe('it.each', () => {
  it.each([
    [1, 2, '0.5'],
    [12, 3, '4'],
    [1, 4, '0.25'],
    [4, 0, ''],
  ])(
    'should add number %d to number %d to give result %s',
    (a, b, expected) => {
      expect(divide(a, b)).toBe(expected);
    }
  );
});