expect(payload).toMatchObject({ prompt_cache_key: "stable-cache-key" });

});

it.each(["1.5", "0x10"])(

"ignores invalid Retry-After header delay values: %s",

async (retryAfter) => {

const fetchMock = vi

.fn<typeof fetch>()

.mockResolvedValueOnce(

new Response("rate limited", {

status: 429,

headers: { "retry-after": retryAfter },

}),

)

.mockRejectedValueOnce(new Error("usage limit: stop after retry delay"));

vi.stubGlobal("fetch", fetchMock);

const setTimeoutSpy = vi

.spyOn(globalThis, "setTimeout")

.mockImplementation((callback: TimerHandler) => {

if (typeof callback === "function") {

callback();

}

return 0 as unknown as ReturnType<typeof setTimeout>;

});

const stream = streamOpenAICodexResponses(model, context, {

apiKey: createJwt({

"https://api.openai.com/auth": {

chatgpt_account_id: "acct-1",

},

}),

transport: "sse",

});

const result = await stream.result();

expect(result.stopReason).toBe("error");

expect(fetchMock).toHaveBeenCalledTimes(2);

expect(setTimeoutSpy).toHaveBeenCalledWith(expect.any(Function), 1000);

},

);

});

const DEFAULT_CODEX_BASE_URL = "https://chatgpt.com/backend-api";

const MAX_RETRIES = 3;

const BASE_DELAY_MS = 1000;

const RETRY_AFTER_HTTP_DATE_RE =

/^(?:(?:Mon|Tue|Wed|Thu|Fri|Sat|Sun), \d{2} (?:Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec) \d{4} \d{2}:\d{2}:\d{2} GMT|(?:Monday|Tuesday|Wednesday|Thursday|Friday|Saturday|Sunday), \d{2}-(?:Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)-\d{2} \d{2}:\d{2}:\d{2} GMT|(?:Mon|Tue|Wed|Thu|Fri|Sat|Sun) (?:Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec) [ \d]\d \d{2}:\d{2}:\d{2} \d{4})$/;

const CODEX_TOOL_CALL_PROVIDERS = new Set(["openai", "openai-codex", "opencode"]);

const WEBSOCKET_MESSAGE_TOO_BIG_CLOSE_CODE = 1009;

if (retryAfter) {

const trimmedRetryAfter = retryAfter.trim();

const seconds = Number(trimmedRetryAfter);

if (/^\d+(?:\.\d+)?$/.test(trimmedRetryAfter) && Number.isFinite(seconds)) {

if (/^\d+$/.test(trimmedRetryAfter) && Number.isFinite(seconds)) {

delayMs = Math.max(0, seconds * 1000);

} else {

} else if (RETRY_AFTER_HTTP_DATE_RE.test(trimmedRetryAfter)) {

const date = Date.parse(trimmedRetryAfter);

if (!Number.isNaN(date)) {

delayMs = Math.max(0, date - Date.now());