1import { profile } from '../Profile'; 2 3it(`respects input types`, () => { 4 const fn = jest.fn((a: string, b: string) => { 5 if (typeof a === 'string') return 1; 6 if (typeof b === 'string') return -1; 7 return 0; 8 }); 9 expect(profile(fn)('a', 'b')).toBe(1); 10 expect(fn).toBeCalledWith('a', 'b'); 11}); 12