perf(test): trim fixture and serialization overhead in integration suites

src/cron/isolated-agent.auth-profile-propagation.test.ts

@@ -82,15 +82,6 @@ describe("runCronIsolatedAgentTurn auth profile propagation (#20624)", () => {
         authProfileIdSource?: string;
       };
 
-      console.log(`authProfileId passed to runEmbeddedPiAgent: ${callArgs?.authProfileId}`);
-      console.log(`authProfileIdSource passed: ${callArgs?.authProfileIdSource}`);
-
-      if (!callArgs?.authProfileId) {
-        console.log("❌ BUG CONFIRMED: isolated cron session does NOT pass authProfileId");
-        console.log("   This causes 401 errors when using providers that require auth profiles");
-      }
-
-      // This assertion will FAIL on main — proving the bug
       expect(callArgs?.authProfileId).toBe("openrouter:default");
     });
   });

src/cron/service.issue-regressions.test.ts

@@ -124,6 +124,10 @@ async function writeCronJobs(storePath: string, jobs: CronJob[]) {
   await fs.writeFile(storePath, JSON.stringify({ version: 1, jobs }), "utf-8");
 }
 
+async function writeCronStoreSnapshot(storePath: string, jobs: unknown[]) {
+  await fs.writeFile(storePath, JSON.stringify({ version: 1, jobs }), "utf-8");
+}
+
 async function startCronForStore(params: {
   storePath: string;
   cronEnabled?: boolean;
@@ -214,11 +218,7 @@ describe("Cron issue regressions", () => {
 
   it("repairs isolated every jobs missing createdAtMs and sets nextWakeAtMs", async () => {
     const store = makeStorePath();
-    await fs.writeFile(
+    await writeCronStoreSnapshot(store.storePath, [
-      store.storePath,
-      JSON.stringify({
-        version: 1,
-        jobs: [
       {
         id: "legacy-isolated",
         agentId: "feature-dev_planner",
@@ -231,9 +231,7 @@ describe("Cron issue regressions", () => {
         payload: { kind: "agentTurn", message: "poll workflow queue" },
         state: {},
       },
-        ],
+    ]);
-      }),
-    );
 
     const cron = new CronService({
       cronEnabled: true,
@@ -330,12 +328,7 @@ describe("Cron issue regressions", () => {
   it("treats persisted jobs with missing enabled as enabled during update()", async () => {
     const store = makeStorePath();
     const now = Date.parse("2026-02-06T10:05:00.000Z");
-    await fs.writeFile(
+    await writeCronStoreSnapshot(store.storePath, [
-      store.storePath,
-      JSON.stringify(
-        {
-          version: 1,
-          jobs: [
       {
         id: "missing-enabled-update",
         name: "legacy missing enabled",
@@ -347,13 +340,7 @@ describe("Cron issue regressions", () => {
         payload: { kind: "systemEvent", text: "legacy" },
         state: {},
       },
-          ],
+    ]);
-        },
-        null,
-        2,
-      ),
-      "utf-8",
-    );
 
     const cron = await startCronForStore({ storePath: store.storePath, cronEnabled: false });
 
@@ -374,12 +361,7 @@ describe("Cron issue regressions", () => {
     const store = makeStorePath();
     const now = Date.parse("2026-02-06T10:05:00.000Z");
     const dueAt = now - 30_000;
-    await fs.writeFile(
+    await writeCronStoreSnapshot(store.storePath, [
-      store.storePath,
-      JSON.stringify(
-        {
-          version: 1,
-          jobs: [
       {
         id: "missing-enabled-due",
         name: "legacy due job",
@@ -391,13 +373,7 @@ describe("Cron issue regressions", () => {
         payload: { kind: "systemEvent", text: "missing-enabled-due" },
         state: { nextRunAtMs: dueAt },
       },
-          ],
+    ]);
-        },
-        null,
-        2,
-      ),
-      "utf-8",
-    );
 
     const enqueueSystemEvent = vi.fn();
     const cron = await startCronForStore({
@@ -1402,12 +1378,7 @@ describe("Cron issue regressions", () => {
     const now = Date.parse("2026-02-06T10:05:00.000Z");
     const staleRunningAtMs = now - 2 * 60 * 60 * 1000 - 1;
 
-    await fs.writeFile(
+    await writeCronStoreSnapshot(store.storePath, [
-      store.storePath,
-      JSON.stringify(
-        {
-          version: 1,
-          jobs: [
       {
         id: "stale-running",
         name: "stale-running",
@@ -1425,13 +1396,7 @@ describe("Cron issue regressions", () => {
           nextRunAtMs: now - 60_000,
         },
       },
-          ],
+    ]);
-        },
-        null,
-        2,
-      ),
-      "utf-8",
-    );
 
     const enqueueSystemEvent = vi.fn();
     const state = createCronServiceState({

src/slack/monitor/message-handler/prepare.test.ts

@@ -24,9 +24,7 @@ describe("slack prepareSlackMessage inbound contract", () => {
     if (!fixtureRoot) {
       throw new Error("fixtureRoot missing");
     }
-    const dir = path.join(fixtureRoot, `case-${caseId++}`);
+    return { storePath: path.join(fixtureRoot, `case-${caseId++}.sessions.json`) };
-    fs.mkdirSync(dir);
-    return { dir, storePath: path.join(dir, "sessions.json") };
   }
 
   beforeAll(() => {

test/git-hooks-pre-commit.test.ts

@@ -8,12 +8,13 @@ const baseGitEnv = {
   GIT_CONFIG_NOSYSTEM: "1",
   GIT_TERMINAL_PROMPT: "0",
 };
+const baseRunEnv: NodeJS.ProcessEnv = { ...process.env, ...baseGitEnv };
 
 const run = (cwd: string, cmd: string, args: string[] = [], env?: NodeJS.ProcessEnv) => {
   return execFileSync(cmd, args, {
     cwd,
     encoding: "utf8",
-    env: { ...process.env, ...baseGitEnv, ...env },
+    env: env ? { ...baseRunEnv, ...env } : baseRunEnv,
   }).trim();
 };
 

test/scripts/ios-team-id.test.ts

@@ -84,10 +84,11 @@ function runScript(
   stdout: string;
   stderr: string;
 } {
-  const cacheKey = JSON.stringify({
+  const extraEnvKey = Object.keys(extraEnv)
-    homeDir,
+    .toSorted((a, b) => a.localeCompare(b))
-    extraEnv: Object.entries(extraEnv).toSorted(([a], [b]) => a.localeCompare(b)),
+    .map((key) => `${key}=${extraEnv[key] ?? ""}`)
-  });
+    .join("\u0001");
+  const cacheKey = `${homeDir}\u0000${extraEnvKey}`;
   const cached = runScriptCache.get(cacheKey);
   if (cached) {
     return cached;