feat(posts): author_id nel repository + listByAuthor + helper utenti

tests/posts.test.ts

@@ -3,8 +3,9 @@ import type Database from 'better-sqlite3';
 import { createDb } from '../src/lib/db';
 import {
   createPost, updatePost, deletePost, getPostById, getPublishedBySlug,
-  listPublished, listAllPosts, listRecent, listArchiveMonths, type PostInput,
+  listPublished, listAllPosts, listRecent, listArchiveMonths, listByAuthor, type PostInput,
 } from '../src/lib/posts';
+import { createUser, getUsernameById, listUsers } from '../src/lib/auth';
 
 let db: Database.Database;
 beforeEach(() => { db = createDb(':memory:'); });
@@ -72,3 +73,27 @@ describe('posts repository', () => {
     expect(months[0].month).toMatch(/^\d{4}-\d{2}$/);
   });
 });
+
+describe('autore articoli', () => {
+  it('createPost salva author_id e listByAuthor filtra', () => {
+    const aliceId = createUser(db, 'alice', 'segreta123', 'user');
+    const bobId = createUser(db, 'bob', 'segreta123', 'user');
+    createPost(db, { ...base, slug: 'a1', author_id: aliceId });
+    createPost(db, { ...base, slug: 'a2', author_id: aliceId });
+    createPost(db, { ...base, slug: 'b1', author_id: bobId });
+    expect(listByAuthor(db, aliceId).length).toBe(2);
+    expect(listByAuthor(db, bobId).length).toBe(1);
+  });
+
+  it('post senza author_id ha author_id null', () => {
+    const id = createPost(db, { ...base, slug: 'orfano' });
+    expect(getPostById(db, id)!.author_id).toBeNull();
+  });
+
+  it('getUsernameById e listUsers', () => {
+    const id = createUser(db, 'carla', 'segreta123', 'superuser');
+    expect(getUsernameById(db, id)).toBe('carla');
+    expect(getUsernameById(db, 99999)).toBeNull();
+    expect(listUsers(db).some((u) => u.username === 'carla' && u.role === 'superuser')).toBe(true);
+  });
+});