Function waitUntil

test/bindingRuntime.prompt.test.ts:1208–1220

(
  check: () => boolean,
  opts?: { debug?: () => string },
)

});

async function waitUntil(
  check: () => boolean,
  opts?: { debug?: () => string },
): Promise<void> {
  const start = Date.now();
  while (!check()) {
    if (Date.now() - start > 2000) {
      const extra = opts?.debug ? ` debug=${opts.debug()}` : '';
      throw new Error(`timeout${extra}`);
    }
    await new Promise((r) => setTimeout(r, 10));
  }
}