+ [misc] Add unit tests for backupModel::backSQL() method

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

module/backup/test/lib/backup.unittest.class.php

@@ -0,0 +1,25 @@
+<?php
+declare(strict_types = 1);
+class backupTest
+{
+    public function __construct()
+    {
+        global $tester;
+        $this->objectModel = $tester->loadModel('backup');
+    }
+
+    /**
+     * Test backSQL method.
+     *
+     * @param  string $backupFile
+     * @access public
+     * @return mixed
+     */
+    public function backSQLTest($backupFile = null)
+    {
+        $result = $this->objectModel->backSQL($backupFile);
+        if(dao::isError()) return dao::getError();
+
+        return $result;
+    }
+}

module/backup/test/model/backsql.php

@@ -0,0 +1,29 @@
+#!/usr/bin/env php
+<?php
+
+/**
+
+title=测试 backupModel::backSQL();
+timeout=0
+cid=0
+
+- 执行backupTest模块的backSQLTest方法，参数是'/tmp/test_backup' 属性result @1
+- 执行backupTest模块的backSQLTest方法，参数是'backup/test.sql' 属性result @~~
+- 执行backupTest模块的backSQLTest方法，参数是'/tmp/zentao_backup.sql' 属性result @1
+- 执行backupTest模块的backSQLTest方法，参数是'/tmp/very_long_backup_file_name_for_testing_purpose.sql' 属性result @1
+- 执行backupTest模块的backSQLTest方法，参数是'/tmp/backup_测试-2024.sql' 属性result @1
+
+*/
+
+include dirname(__FILE__, 5) . '/test/lib/init.php';
+include dirname(__FILE__, 2) . '/lib/backup.unittest.class.php';
+
+su('admin');
+
+$backupTest = new backupTest();
+
+r($backupTest->backSQLTest('/tmp/test_backup')) && p('result') && e('1');
+r($backupTest->backSQLTest('backup/test.sql')) && p('result') && e('~~');
+r($backupTest->backSQLTest('/tmp/zentao_backup.sql')) && p('result') && e('1');
+r($backupTest->backSQLTest('/tmp/very_long_backup_file_name_for_testing_purpose.sql')) && p('result') && e('1');
+r($backupTest->backSQLTest('/tmp/backup_测试-2024.sql')) && p('result') && e('1');