wehub-resource-sync
91 lines
3.0 KiB
TypeScript
91 lines
3.0 KiB
TypeScript
// Characterization of recordCompressionCacheStats — the compression cache-stats hook extracted
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// from handleChatCore's request-setup compression path (chatCore god-file decomposition, #3501).
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// Fire-and-forget; uses a real temp DB and polls compression_cache_stats. Locks: a compressed
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// prompt records a cache-stats row with the resolved provider/mode/tokens-saved, and the helper
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// returns synchronously without throwing (fail-open).
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import { test, before, after } from "node:test";
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import assert from "node:assert/strict";
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import fs from "node:fs";
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import os from "node:os";
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import path from "node:path";
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const testDataDir = fs.mkdtempSync(path.join(os.tmpdir(), "omni-comp-cache-test-"));
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process.env.DATA_DIR = testDataDir;
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const coreDb = await import("../../src/lib/db/core.ts");
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const { recordCompressionCacheStats } = await import(
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"../../open-sse/handlers/chatCore/compressionCacheStats.ts"
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);
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function rowsFor(provider: string): Array<Record<string, unknown>> {
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return coreDb
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.getDbInstance()
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.prepare(
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"SELECT provider, compression_mode AS mode, tokens_saved_compression AS saved FROM compression_cache_stats WHERE provider = ?"
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)
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.all(provider) as Array<Record<string, unknown>>;
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}
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async function waitForRows(provider: string, min: number, timeoutMs = 3000) {
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const deadline = Date.now() + timeoutMs;
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while (Date.now() < deadline) {
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if (rowsFor(provider).length >= min) break;
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await new Promise((r) => setTimeout(r, 25));
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}
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return rowsFor(provider);
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}
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before(async () => {
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await coreDb.ensureDbInitialized();
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});
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after(() => {
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coreDb.resetDbInstance();
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try {
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fs.rmSync(testDataDir, { recursive: true, force: true });
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} catch {
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// best-effort cleanup
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}
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});
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test("returns synchronously without throwing (fire-and-forget)", () => {
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assert.doesNotThrow(() =>
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recordCompressionCacheStats({
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compressionInputBody: { messages: [{ role: "user", content: "hi" }] },
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provider: "openai",
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targetFormat: "openai",
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effectiveModel: "gpt-x",
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mode: "balanced",
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stats: { originalTokens: 100, compressedTokens: 60 },
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})
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);
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});
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test("records a cache-stats row with the resolved provider/mode/tokens-saved", async () => {
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recordCompressionCacheStats({
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compressionInputBody: { messages: [{ role: "user", content: "hello world" }] },
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provider: "ccs-prov",
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targetFormat: "openai",
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effectiveModel: "gpt-ccs",
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mode: "aggressive",
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stats: { originalTokens: 200, compressedTokens: 75 },
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});
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const rows = await waitForRows("ccs-prov", 1);
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assert.equal(rows.length, 1);
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assert.equal(rows[0].mode, "aggressive");
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assert.equal(rows[0].saved, 125);
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});
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test("clamps negative tokens-saved to 0", async () => {
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recordCompressionCacheStats({
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compressionInputBody: { messages: [] },
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provider: "ccs-neg",
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targetFormat: "openai",
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effectiveModel: "gpt-x",
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mode: "balanced",
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stats: { originalTokens: 50, compressedTokens: 80 },
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});
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const rows = await waitForRows("ccs-neg", 1);
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assert.equal(rows[0].saved, 0);
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});
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