Function cancelOnIdle

packages/core/test/di/inject_async/inject_async_spec.ts:267–271

(id: number)

        return setTimeout(callback, options.timeout) as unknown as number;
      },
      cancelOnIdle(id: number): void {
        if (id !== -1) {
          clearTimeout(id);
        }
      },
    };

    TestBed.configureTestingModule({