| import http from 'http' | |
| export const getFreePort = async (): Promise<number> => { | |
| return new Promise((resolve, reject) => { | |
| const server = http.createServer(() => {}) | |
| server.listen(0, () => { | |
| const address = server.address() | |
| server.close() | |
| if (address && typeof address === 'object') { | |
| resolve(address.port) | |
| } else { | |
| reject(new Error('invalid address from server: ' + address?.toString())) | |
| } | |
| }) | |
| }) | |
| } | |