Function setup

packages/router-core/tests/callbacks.test.ts:6–41

({
    onEnter,
    onLeave,
    onStay,
  }: {
    onEnter?: () => void
    onLeave?: () => void
    onStay?: () => void
  })

describe('callbacks', () => {
  const setup = ({
    onEnter,
    onLeave,
    onStay,
  }: {
    onEnter?: () => void
    onLeave?: () => void
    onStay?: () => void
  }) => {
    const rootRoute = new BaseRootRoute({})

    const fooRoute = new BaseRoute({
      getParentRoute: () => rootRoute,
      path: '/foo',
      onLeave,
      onEnter,
      onStay,
    })

    const barRoute = new BaseRoute({
      getParentRoute: () => rootRoute,
      path: '/bar',
      onLeave,
      onEnter,
      onStay,
    })

    const routeTree = rootRoute.addChildren([fooRoute, barRoute])

    const router = new RouterCore({
      routeTree,
      history: createMemoryHistory(),
    })

    return router
  }

  const createFooRouter = (
    opts: {