db = new PDO('sqlite::memory:', options: [ PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION, PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC, ]); $this->db->sqliteCreateFunction('strip_tags', 'strip_tags', 1); Migrator::run($this->db); $this->db->exec("INSERT INTO users (id, username, email, password_hash, role) VALUES (1, 'alice', 'alice@example.com', 'hash', 'user')"); $this->db->exec("INSERT INTO users (id, username, email, password_hash, role) VALUES (2, 'bob', 'bob@example.com', 'hash', 'user')"); } public function testMediaHashIsUniquePerUser(): void { $stmt = $this->db->prepare( 'INSERT INTO media (filename, url, hash, user_id, created_at) VALUES (:filename, :url, :hash, :user_id, :created_at)', ); $stmt->execute([ ':filename' => 'first.webp', ':url' => '/media/first.webp', ':hash' => 'same-hash', ':user_id' => 1, ':created_at' => '2026-03-19 10:00:00', ]); $this->expectException(PDOException::class); $stmt->execute([ ':filename' => 'second.webp', ':url' => '/media/second.webp', ':hash' => 'same-hash', ':user_id' => 1, ':created_at' => '2026-03-19 10:01:00', ]); } public function testMediaHashCanBeSharedAcrossDifferentUsers(): void { $stmt = $this->db->prepare( 'INSERT INTO media (filename, url, hash, user_id, created_at) VALUES (:filename, :url, :hash, :user_id, :created_at)', ); $stmt->execute([ ':filename' => 'alice.webp', ':url' => '/media/alice.webp', ':hash' => 'same-hash', ':user_id' => 1, ':created_at' => '2026-03-19 10:00:00', ]); $stmt->execute([ ':filename' => 'bob.webp', ':url' => '/media/bob.webp', ':hash' => 'same-hash', ':user_id' => 2, ':created_at' => '2026-03-19 10:01:00', ]); $count = (int) $this->db->query("SELECT COUNT(*) FROM media WHERE hash = 'same-hash'")->fetchColumn(); self::assertSame(2, $count); } }