Andras Schmelczer
a33e4bbcb9
Scripted multi-client harness against a real server (~110 scenario tests, server-control, managed-websocket, test-runner). Wires the new package into frontend/package.json workspaces and the lint script. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
33 lines
890 B
TypeScript
33 lines
890 B
TypeScript
export async function runWithConcurrency<T, R>(
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items: T[],
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concurrency: number,
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fn: (item: T) => Promise<R>
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): Promise<R[]> {
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const results: R[] = [];
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const errors: unknown[] = [];
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const executing = new Set<Promise<void>>();
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for (let i = 0; i < items.length; i++) {
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const index = i;
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const p = fn(items[index])
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.then((result) => {
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results[index] = result;
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})
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.catch((error: unknown) => {
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errors.push(error);
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})
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.finally(() => executing.delete(p));
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executing.add(p);
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if (executing.size >= concurrency) {
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await Promise.race(executing);
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}
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}
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// eslint-disable-next-line no-restricted-properties
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await Promise.all(executing);
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if (errors.length > 0) {
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throw errors[0];
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}
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return results;
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}
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