Function prefetchTrigger

packages/core/test/di/inject_async/inject_async_spec.ts:178–183

(timeout: number)

    };

    const prefetchTrigger = (timeout: number) =>
      new Promise<void>((resolve) => {
        setTimeout(() => {
          resolve();
        }, timeout);
      });

    await TestBed.runInInjectionContext(async () => {
      const fooPromise = injectAsync(loader, {prefetch: () => prefetchTrigger(100)});