Function createRoot

packages/router/test/create_url_tree.spec.ts:636–649

(
  tree: UrlTree,
  commands: readonly any[],
  queryParams?: Params,
  fragment?: string,
)

});

async function createRoot(
  tree: UrlTree,
  commands: readonly any[],
  queryParams?: Params,
  fragment?: string,
): Promise<UrlTree> {
  const router = TestBed.inject(Router);
  await router.navigateByUrl(tree);
  return router.createUrlTree(commands, {
    relativeTo: router.routerState.root,
    queryParams,
    fragment,
  });
}

function create(
  relativeTo: ActivatedRoute,