Shorten temp directory (#17901)

packages/core/src/config/storageMigration.test.ts

@@ -0,0 +1,77 @@
+/**
+ * @license
+ * Copyright 2025 Google LLC
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+import { describe, it, expect, beforeEach, afterEach, vi } from 'vitest';
+
+vi.unmock('./storageMigration.js');
+
+import * as fs from 'node:fs';
+import * as path from 'node:path';
+import * as os from 'node:os';
+import { StorageMigration } from './storageMigration.js';
+
+describe('StorageMigration', () => {
+  let tempDir: string;
+
+  beforeEach(() => {
+    tempDir = fs.mkdtempSync(path.join(os.tmpdir(), 'gemini-migration-test-'));
+  });
+
+  afterEach(() => {
+    fs.rmSync(tempDir, { recursive: true, force: true });
+    vi.restoreAllMocks();
+  });
+
+  it('migrates a directory from old to new path (non-destructively)', async () => {
+    const oldPath = path.join(tempDir, 'old-hash');
+    const newPath = path.join(tempDir, 'new-slug');
+    fs.mkdirSync(oldPath);
+    fs.writeFileSync(path.join(oldPath, 'test.txt'), 'hello');
+
+    await StorageMigration.migrateDirectory(oldPath, newPath);
+
+    expect(fs.existsSync(newPath)).toBe(true);
+    expect(fs.existsSync(oldPath)).toBe(true); // Should still exist
+    expect(fs.readFileSync(path.join(newPath, 'test.txt'), 'utf8')).toBe(
+      'hello',
+    );
+  });
+
+  it('does nothing if old path does not exist', async () => {
+    const oldPath = path.join(tempDir, 'non-existent');
+    const newPath = path.join(tempDir, 'new-slug');
+
+    await StorageMigration.migrateDirectory(oldPath, newPath);
+
+    expect(fs.existsSync(newPath)).toBe(false);
+  });
+
+  it('does nothing if new path already exists', async () => {
+    const oldPath = path.join(tempDir, 'old-hash');
+    const newPath = path.join(tempDir, 'new-slug');
+    fs.mkdirSync(oldPath);
+    fs.mkdirSync(newPath);
+    fs.writeFileSync(path.join(oldPath, 'old.txt'), 'old');
+    fs.writeFileSync(path.join(newPath, 'new.txt'), 'new');
+
+    await StorageMigration.migrateDirectory(oldPath, newPath);
+
+    expect(fs.existsSync(oldPath)).toBe(true);
+    expect(fs.existsSync(path.join(newPath, 'new.txt'))).toBe(true);
+    expect(fs.existsSync(path.join(newPath, 'old.txt'))).toBe(false);
+  });
+
+  it('creates parent directory for new path if it does not exist', async () => {
+    const oldPath = path.join(tempDir, 'old-hash');
+    const newPath = path.join(tempDir, 'sub', 'new-slug');
+    fs.mkdirSync(oldPath);
+
+    await StorageMigration.migrateDirectory(oldPath, newPath);
+
+    expect(fs.existsSync(newPath)).toBe(true);
+    expect(fs.existsSync(oldPath)).toBe(true); // Should still exist
+  });
+});