refactor(src): split oversized modules

src/config/test-helpers.ts

@@ -0,0 +1,40 @@
+import { vi } from "vitest";
+
+import { withTempHome as withTempHomeBase } from "../../test/helpers/temp-home.js";
+
+export async function withTempHome<T>(
+  fn: (home: string) => Promise<T>,
+): Promise<T> {
+  return withTempHomeBase(fn, { prefix: "clawdbot-config-" });
+}
+
+/**
+ * Helper to test env var overrides. Saves/restores env vars and resets modules.
+ */
+export async function withEnvOverride<T>(
+  overrides: Record<string, string | undefined>,
+  fn: () => Promise<T>,
+): Promise<T> {
+  const saved: Record<string, string | undefined> = {};
+  for (const key of Object.keys(overrides)) {
+    saved[key] = process.env[key];
+    if (overrides[key] === undefined) {
+      delete process.env[key];
+    } else {
+      process.env[key] = overrides[key];
+    }
+  }
+  vi.resetModules();
+  try {
+    return await fn();
+  } finally {
+    for (const key of Object.keys(saved)) {
+      if (saved[key] === undefined) {
+        delete process.env[key];
+      } else {
+        process.env[key] = saved[key];
+      }
+    }
+    vi.resetModules();
+  }
+}