fix(test): prepare history benchmark before child deadlines (#155780)

scripts/bench-session-history-runtime.test-support.ts

@@ -0,0 +1,6 @@
+// Prepare the real benchmark and its self-spawned readers before the child deadline starts.
+export const benchSessionHistoryEntrypoint = {
+  currentModuleUrl: import.meta.url,
+  sourceWorkerName: "bench-session-history",
+  distWorkerPath: "test-support/bench-session-history.js",
+} as const;

scripts/lib/vitest-worker-build-entries.mts

@@ -51,6 +51,7 @@ import { transcriptLibraryTimezoneEntrypoint } from "../../src/transcripts/libra
 import { tuiPtyRuntimeEntrypoints } from "../../src/tui/tui-pty-runtime-test-support.ts";
 import { workerBackgroundExecEntrypoints } from "../../src/worker/worker-runtime-background-exec-entrypoints.test-support.ts";
 import { channelIngressGatewayRestartEntrypoint } from "../../test/fixtures/channel-ingress-gateway-restart-entrypoint.ts";
+import { benchSessionHistoryEntrypoint } from "../bench-session-history-runtime.test-support.ts";
 import { runtimeProcessBuildEntrypoints } from "./runtime-process-build-entries.mts";
 import { createRuntimeProcessBuildEntries } from "./runtime-process-core-build-entries.mts";
 import { nativeSchtasksIntegrationEnabled } from "./vitest-worker-declarations.mts";
@@ -103,6 +104,7 @@ export const vitestWorkerBuildEntries = {
     "src/commands/doctor/shared/legacy-config-binding-repair.runtime.ts",
   ...createRuntimeProcessBuildEntries([
     ...runtimeProcessBuildEntrypoints,
+    benchSessionHistoryEntrypoint,
     ...Object.values(discordAudioTestEntrypoints),
     codexCatalogPageWorkerEntrypoint,
     agentWorkerStoreFixtureEntrypoint,

scripts/lib/vitest-worker-declarations.mts

@@ -16,6 +16,8 @@ export const runtimeProcessDeclarationEntries = {
 };
 export const vitestWorkerDeclarationEntries = {
   ...runtimeProcessDeclarationEntries,
+  "test-support/bench-session-history-runtime":
+    "scripts/bench-session-history-runtime.test-support.ts",
   "extensions/discord/src/voice/audio-worker-entrypoints.test-support":
     "extensions/discord/src/voice/audio-worker-entrypoints.test-support.ts",
   // Codex is package-owned and excluded from the root runtime bundle.

test/scripts/bench-session-history.test.ts

@@ -1,16 +1,22 @@
 import { spawnSync } from "node:child_process";
 import { expect, it } from "vitest";
+import { benchSessionHistoryEntrypoint } from "../../scripts/bench-session-history-runtime.test-support.js";
+import {
+  resolveRuntimeWorkerArgv,
+  resolveRuntimeWorkerUrl,
+} from "../../src/infra/runtime-worker-url.js";
 import { resolveTestNodeExecPath } from "../../src/test-utils/node-process.js";
 
 it("drains seeded transcript owners before fresh-process history measurements", () => {
+  const benchmarkUrl = resolveRuntimeWorkerUrl(benchSessionHistoryEntrypoint);
+  expect(benchmarkUrl.pathname).toMatch(/\.js$/u);
+  const execPath = resolveTestNodeExecPath();
   const result = spawnSync(
-    resolveTestNodeExecPath(),
+    execPath,
     [
-      "--import",
-      "./scripts/tsx.mjs",
-      "scripts/bench-session-history.ts",
+      ...resolveRuntimeWorkerArgv(benchmarkUrl, execPath),
       "--profile",
-      "long",
+      "small,long",
       "--operation",
       "recent",
       "--samples",
@@ -25,6 +31,11 @@ it("drains seeded transcript owners before fresh-process history measurements",
   expect(report).toEqual(
     expect.objectContaining({
       results: [
+        expect.objectContaining({
+          profile: "small",
+          operation: "recent",
+          result: { returned: 20, total: 80 },
+        }),
         expect.objectContaining({
           profile: "long",
           operation: "recent",