1--TEST--
2Resume running fiber
3--EXTENSIONS--
4fiber
5--FILE--
6<?php
7
8$fiber = new Fiber(function (): void {
9    $self = Fiber::getCurrent();
10    $self->resume();
11});
12
13$fiber->start();
14
15?>
16--EXPECTF--
17Fatal error: Uncaught FiberError: Cannot resume a fiber that is not suspended in %sresume-running-fiber.php:%d
18Stack trace:
19#0 %sresume-running-fiber.php(%d): Fiber->resume()
20#1 [internal function]: {closure}()
21#2 %sresume-running-fiber.php(%d): Fiber->start()
22#3 {main}
23  thrown in %sresume-running-fiber.php on line %d
24