Class SyncOnly

src/from.test.ts:449–453

  describe('ToStreamable protocol in async context', () => {
    it('should handle toStreamable when toAsyncStreamable not present [FROM-023]', async () => {
      class SyncOnly {
        [toStreamable]() {
          return 'sync-only-data';
        }
      }

      async function* source() {
        yield new SyncOnly();