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test(site-memory): stop racing two clocks in the public-IP timeout bound #531

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test(site-memory): stop racing two clocks in the public-IP timeout bound #531

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8 changes: 7 additions & 1 deletion src/site-memory/environment.test.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -87,8 +87,10 @@ describe('candidate environment provenance', () => {
});

it('bounds public-IP lookup and omits the field on timeout', async () => {
let abortReason: unknown;
const fetch = vi.fn((_input: RequestInfo | URL, init?: RequestInit) => new Promise<Response>((_resolve, reject) => {
init?.signal?.addEventListener('abort', () => {
abortReason = init.signal?.reason;
reject(init.signal?.reason ?? new Error('aborted'));
});
}));
Expand All @@ -105,7 +107,11 @@ describe('candidate environment provenance', () => {

expect(env.publicIp).toBeUndefined();
expect(fetch).toHaveBeenCalledTimes(1);
expect(Date.now() - started).toBeGreaterThanOrEqual(2000);
// The lookup is bounded by its own AbortSignal.timeout, not by the caller
// giving up. Assert that mechanism rather than a wall-clock floor: the
// timer clock and Date.now() are different sources, so elapsed time can
// land a millisecond under the configured timeout.
expect((abortReason as Error | undefined)?.name).toBe('TimeoutError');
expect(Date.now() - started).toBeLessThan(4000);
});
});
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