getBaseURL

1/**
2 * Returns the base URL of the current location.
3 * Includes protocol, hostname, and port if present.
4 *
5 * @returns The base URL string (e.g., "https://example.com:3000").
6 */
7export function getBaseURL(): string {
8  if (typeof window === 'undefined' || !window.location) return '';
9  const { protocol, hostname, port } = window.location;
10  return `${protocol}//${hostname}${port ? `:${port}` : ''}`;
11}

1const originalLocation = window.location;
2
3function mockLocation(href: string) {
4  delete (window as any).location;
5  (window as any).location = new URL(href);
6}
7
8afterEach(() => {
9  window.location = originalLocation;
10});
11
12test('getBaseURL - returns full origin with port', () => {
13  mockLocation('https://example.com:8080/some/path');
14  expect(getBaseURL()).toBe('https://example.com:8080');
15});
16
17test('getBaseURL - returns origin without port if default', () => {
18  mockLocation('https://example.com/path');
19  expect(getBaseURL()).toBe('https://example.com');
20});
21
22test('getBaseURL - works with http', () => {
23  mockLocation('http://localhost:3000/test');
24  expect(getBaseURL()).toBe('http://localhost:3000');
25});
26
27test('getBaseURL - returns empty string in non-browser environment', () => {
28  const origWindow = global.window;
29  delete (global as any).window;
30  expect(getBaseURL()).toBe('');
31  global.window = origWindow;
32});