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learnharness/tests/completion.ts
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/** Bound an actual fixture completion signal, not a count of event-loop
* turns. Always clear the watchdog, and preserve real fixture failures. */
export async function completedWithin<T>(completion: Promise<T>, description: string, timeoutMs = 10_000): Promise<T> {
let timer: ReturnType<typeof setTimeout> | undefined;
try {
return await Promise.race([
completion,
new Promise<never>((_resolve, reject) => {
timer = setTimeout(() => reject(new Error(`Timed out after ${timeoutMs}ms waiting for ${description}`)), timeoutMs);
}),
]);
} finally {
clearTimeout(timer);
}
}