Function checkGuards

packages/router/test/router.spec.ts:905–926

(
  future: RouterStateSnapshot,
  curr: RouterStateSnapshot,
  injector: EnvironmentInjector,
  check: (result: GuardResult) => void,
)

}

function checkGuards(
  future: RouterStateSnapshot,
  curr: RouterStateSnapshot,
  injector: EnvironmentInjector,
  check: (result: GuardResult) => void,
): void {
  // Since we only test the guards, we don't need to provide a full navigation
  // transition object with all properties set.
  of({
    guards: getAllRouteGuards(future, curr, new ChildrenOutletContexts(injector)),
  } as NavigationTransition)
    .pipe(checkGuardsOperator())
    .subscribe({
      next(t) {
        if (t.guardsResult === null) throw new Error('Guard result expected');
        return check(t.guardsResult);
      },
      error(e) {
        throw e;
      },
    });
}