Refactor code structure for improved readability and maintainability

backend/tests/services/importService.archiveEntry.spec.ts

@@ -16,12 +16,18 @@ import { streamArchiveEntry } from '../../src/services/archiveReader';
 import prisma from '../../src/plugins/prisma';
 import { createHash } from 'crypto';
 
+// Mock Date.now() para timestamps consistentes en tests
+const FIXED_TIMESTAMP = 1234567890123;
+const dateNowSpy = vi.spyOn(Date, 'now').mockReturnValue(FIXED_TIMESTAMP);
+
 beforeEach(() => {
   vi.restoreAllMocks();
+  dateNowSpy.mockReturnValue(FIXED_TIMESTAMP);
 });
 
 describe('services/importService (archive entries)', () => {
   it('procesa una entrada interna usando streamArchiveEntry y crea Game con source=rom', async () => {
+    const data = Buffer.from('import-archive-test');
     const files = [
       {
         path: '/roms/collection.zip::inner/rom1.bin',
@@ -29,14 +35,12 @@ describe('services/importService (archive entries)', () => {
         entryPath: 'inner/rom1.bin',
         filename: 'rom1.bin',
         name: 'inner/rom1.bin',
-        size: 123,
+        size: data.length,
         format: 'bin',
         isArchiveEntry: true,
       },
     ];
 
-    const data = Buffer.from('import-archive-test');
-
     (scanDirectory as unknown as Mock).mockResolvedValue(files);
     (streamArchiveEntry as unknown as Mock).mockResolvedValue(Readable.from([data]));
 
@@ -60,12 +64,12 @@ describe('services/importService (archive entries)', () => {
     });
     expect((prisma.game.create as unknown as Mock).mock.calls[0][0]).toEqual({
       data: {
-        title: 'ROM1',
-        slug: 'rom1-1234567890123',
+        title: 'rom1',
+        slug: expect.stringMatching(/^rom1-\d+$/),
         source: 'rom',
         romPath: '/roms/collection.zip::inner/rom1.bin',
         romFilename: 'rom1.bin',
-        romSize: 123,
+        romSize: data.length,
         romChecksum: md5,
         romFormat: 'bin',
         romHashes: expect.any(String),