import{isUrl}from'./utils';describe('isUrl tests',()=>{it('should return false for invalid and corner case inputs',()=>{expect(isUrl([])).toBeFalsy();expect(isUrl({})).toBeFalsy();expect(isUrl(false)).toBeFalsy();expect(isUrl(true)).toBeFalsy();expect(isUrl(NaN)).toBeFalsy();expect(isUrl(null)).toBeFalsy();expect(isUrl(undefined)).toBeFalsy();expect(isUrl('')).toBeFalsy();});it('should return false for invalid URLs',()=>{expect(isUrl('foo')).toBeFalsy();expect(isUrl('bar')).toBeFalsy();expect(isUrl('bar/test')).toBeFalsy();expect(isUrl('http:/example.com/')).toBeFalsy();expect(isUrl('ttp://example.com/')).toBeFalsy();});it('should return true for valid URLs',()=>{expect(isUrl('http://example.com/')).toBeTruthy();expect(isUrl('https://example.com/')).toBeTruthy();expect(isUrl('http://example.com/test/123')).toBeTruthy();expect(isUrl('https://example.com/test/123')).toBeTruthy();expect(isUrl('http://example.com/test/123?foo=bar')).toBeTruthy();expect(isUrl('https://example.com/test/123?foo=bar')).toBeTruthy();expect(isUrl('http://www.example.com/')).toBeTruthy();expect(isUrl('https://www.example.com/')).toBeTruthy();expect(isUrl('http://www.example.com/test/123')).toBeTruthy();expect(isUrl('https://www.example.com/test/123')).toBeTruthy();expect(isUrl('http://www.example.com/test/123?foo=bar')).toBeTruthy();expect(isUrl('https://www.example.com/test/123?foo=bar')).toBeTruthy();});});