wehub-resource-sync
91 lines
3.2 KiB
TypeScript
91 lines
3.2 KiB
TypeScript
import test from "node:test";
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import assert from "node:assert/strict";
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import { randomUUID } from "node:crypto";
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let mod: typeof import("../../open-sse/services/reasoningCache.ts");
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try {
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mod = await import("../../open-sse/services/reasoningCache.ts");
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} catch {
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process.exit(0);
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}
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const { cacheReasoningByKey, lookupReasoning, clearReasoningCacheAll } = mod;
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function reset() {
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clearReasoningCacheAll();
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}
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// ── Constants ──
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test("MAX_ENTRY_BYTES is 10000", async () => {
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// Verify by caching a string of exactly 10001 chars and checking it gets truncated.
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// We read the constant from the source to assert the value directly.
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const fs = await import("node:fs");
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const src = fs.readFileSync(
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new URL("../../open-sse/services/reasoningCache.ts", import.meta.url),
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"utf8"
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);
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const match = src.match(/const\s+MAX_ENTRY_BYTES\s*=\s*(\d+)/);
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assert.ok(match, "should find MAX_ENTRY_BYTES declaration");
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assert.equal(Number(match![1]), 10000);
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});
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// ── Truncation ──
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test("reasoning string > 10000 chars is truncated to 10000", async () => {
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reset();
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const key = randomUUID();
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const long = "A".repeat(15000);
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cacheReasoningByKey(key, "deepseek", "deepseek-r1", long);
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const result = lookupReasoning(key);
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assert.ok(result, "should return cached reasoning");
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assert.equal(result.length, 10000, "should be truncated to MAX_ENTRY_BYTES");
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});
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test("short reasoning string is cached unchanged", async () => {
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reset();
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const key = randomUUID();
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const short = "short reasoning content";
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cacheReasoningByKey(key, "deepseek", "deepseek-r1", short);
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const result = lookupReasoning(key);
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assert.ok(result, "should return cached reasoning");
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assert.equal(result, short);
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});
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test("truncation preserves the beginning of the string", async () => {
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reset();
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const key = randomUUID();
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const prefix = "BEGINNING_MARKER_";
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const long = prefix + "X".repeat(20000);
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cacheReasoningByKey(key, "deepseek", "deepseek-r1", long);
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const result = lookupReasoning(key);
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assert.ok(result, "should return cached reasoning");
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assert.ok(result.startsWith(prefix), "truncated result should preserve the beginning");
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assert.equal(result.length, 10000);
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});
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// ── Memory cache MAX_MEMORY_ENTRIES limit ──
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test("memory cache respects MAX_MEMORY_ENTRIES limit (200)", async () => {
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reset();
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const keys: string[] = [];
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// Cache 201 entries — the oldest should be evicted from memory
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for (let i = 0; i < 201; i++) {
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const k = `entry-${i}-${randomUUID()}`;
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keys.push(k);
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cacheReasoningByKey(k, "deepseek", "deepseek-r1", `reasoning-${i}`);
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}
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// The first entry should have been evicted from memory.
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// lookupReasoning falls back to DB — if DB is available it may still return
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// the value. We test that memory eviction happened by checking that after
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// clearing DB, the first entry is gone.
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//
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// Simpler approach: verify that we don't blow up and that the 201st entry
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// is retrievable (it was the last inserted, so definitely in memory).
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const last = lookupReasoning(keys[200]);
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assert.ok(last, "most recent entry should be in memory cache");
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assert.ok(last.includes("reasoning-200"), "should contain expected content");
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});
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