Files
cfw-autumn/server/tests/unit/features/get-model-pricing.test.ts
2026-06-10 13:05:45 +01:00

133 lines
3.6 KiB
TypeScript

import { afterAll, afterEach, expect, mock, test } from "bun:test";
import { ErrCode } from "@autumn/shared";
// Map-backed CacheManager stub — getModelsDevPricing's cache key is shared
// with the dev server, so the real Redis must never be touched here.
const store = new Map<string, unknown>();
const setJsonCalls: { key: string; value: unknown; ttl?: number }[] = [];
mock.module("@/utils/cacheUtils/CacheManager.js", () => ({
CacheManager: {
getJson: async (key: string) => store.get(key) ?? null,
setJson: async (key: string, value: unknown, ttl?: number) => {
setJsonCalls.push({ key, value, ttl });
store.set(key, value);
},
},
}));
const { getModelsDevPricing } = await import(
"@/internal/features/utils/getModelPricing.js"
);
const PRIMARY_KEY = "models_dev_pricing";
const STALE_KEY = "models_dev_pricing_stale";
const pricingData = {
anthropic: { id: "anthropic", name: "Anthropic", models: {} },
};
const stalePricingData = {
openai: { id: "openai", name: "OpenAI", models: {} },
};
const realFetch = globalThis.fetch;
let fetchCalls = 0;
const stubFetch = (impl: () => Promise<Response>) => {
globalThis.fetch = Object.assign(
async () => {
fetchCalls++;
return await impl();
},
{ preconnect: realFetch.preconnect },
);
};
afterEach(() => {
store.clear();
setJsonCalls.length = 0;
fetchCalls = 0;
globalThis.fetch = realFetch;
});
afterAll(() => {
mock.restore();
globalThis.fetch = realFetch;
});
test("primary cache hit returns cached data without fetching", async () => {
store.set(PRIMARY_KEY, pricingData);
stubFetch(() => {
throw new Error("should not fetch");
});
const result = await getModelsDevPricing();
expect(result).toEqual(pricingData);
expect(fetchCalls).toBe(0);
});
test("cache miss fetches and populates primary + stale caches", async () => {
stubFetch(async () => Response.json(pricingData));
const result = await getModelsDevPricing();
expect(result).toEqual(pricingData);
expect(fetchCalls).toBe(1);
// Cache writes are fire-and-forget — flush microtasks before asserting
await Bun.sleep(0);
expect(setJsonCalls).toEqual([
{ key: PRIMARY_KEY, value: pricingData, ttl: 60 * 60 * 3 },
{ key: STALE_KEY, value: pricingData, ttl: 60 * 60 * 24 * 3 },
]);
});
test("non-ok response falls back to the stale cache", async () => {
store.set(STALE_KEY, stalePricingData);
stubFetch(async () => new Response("oops", { status: 500 }));
const result = await getModelsDevPricing();
expect(result).toEqual(stalePricingData);
});
test("fetch network error falls back to the stale cache", async () => {
store.set(STALE_KEY, stalePricingData);
stubFetch(() => {
throw new Error("network down");
});
const result = await getModelsDevPricing();
expect(result).toEqual(stalePricingData);
});
test("fetch failure with no stale cache throws InternalError", async () => {
stubFetch(() => {
throw new Error("network down");
});
await expect(getModelsDevPricing()).rejects.toMatchObject({
code: ErrCode.InternalError,
message: "Failed to fetch models.dev pricing and no cache available",
});
});
test("fetch carries an abort timeout so a hanging models.dev cannot hang tracks", async () => {
let capturedSignal: AbortSignal | undefined;
globalThis.fetch = Object.assign(
async (_input: unknown, init?: RequestInit) => {
fetchCalls++;
capturedSignal = init?.signal ?? undefined;
return Response.json(pricingData);
},
{ preconnect: realFetch.preconnect },
) as typeof fetch;
await getModelsDevPricing();
expect(capturedSignal).toBeInstanceOf(AbortSignal);
expect(capturedSignal?.aborted).toBe(false);
});