Function drainOne

src/commands/test.ts:2762–2772

()

  const inFlight = new Set<Promise<CliBatchRunResult>>();

  async function drainOne(): Promise<void> {
    const testId = remaining.shift();
    if (testId === undefined) return;
    const p = triggerOne(testId).then(result => {
      batchRunResults.push(result);
      inFlight.delete(p);
      return result;
    });
    inFlight.add(p);
    await p;
  }

  // Fill up to concurrencyLimit slots, then drain one before adding
  // each new testId so we never exceed the limit.