Edit File: getDistVersion.spec.ts
import Stream from 'stream'; import https from 'https'; import getDistVersion from './getDistVersion'; jest.mock('https', () => ({ get: jest.fn(), })); test('Valid response returns version', async () => { const st = new Stream(); (https.get as jest.Mock).mockImplementation((url, cb) => { cb(st); st.emit('data', '{"latest":"1.0.0"}'); st.emit('end'); }); const version = await getDistVersion('test', 'latest'); expect(version).toEqual('1.0.0'); }); test('Invalid response throws error', async () => { const st = new Stream(); (https.get as jest.Mock).mockImplementation((url, cb) => { cb(st); st.emit('data', 'some invalid json'); st.emit('end'); }); expect(getDistVersion('test', 'latest')).rejects.toThrow( 'Could not parse version response' ); });
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