Function setupWithPathParams

packages/router-core/tests/callbacks.test.ts:164–184

({
      loader,
      staleTime,
    }: {
      loader?: () => unknown
      staleTime?: number
    })

  // match-level caching, which still relies on match.id (routeId + params + loaderDeps).
  describe('same-route match caching', () => {
    const setupWithPathParams = ({
      loader,
      staleTime,
    }: {
      loader?: () => unknown
      staleTime?: number
    }) => {
      const rootRoute = new BaseRootRoute({})
      const postRoute = new BaseRoute({
        getParentRoute: () => rootRoute,
        path: '/posts/$postId',
        loader,
        staleTime,
        gcTime: staleTime,
      })
      const routeTree = rootRoute.addChildren([postRoute])
      return new RouterCore({
        routeTree,
        history: createMemoryHistory(),
      })
    }

    test('keeps previous loaderDeps variant cached and reuses it within staleTime', async () => {
      const loader = vi.fn()