+ [misc] Add unit tests for pivotModel::groupRecords() method

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

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

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

@@ -691,4 +691,20 @@ class pivotTest
 
         return $result;
     }
+
+    /**
+     * Test groupRecords method.
+     *
+     * @param  array $records
+     * @param  array $groups
+     * @access public
+     * @return array
+     */
+    public function groupRecordsTest(array $records, array $groups): array
+    {
+        $result = $this->objectModel->groupRecords($records, $groups);
+        if(dao::isError()) return dao::getError();
+
+        return $result;
+    }
 }

module/pivot/test/model/grouprecords.php

@@ -0,0 +1,57 @@
+#!/usr/bin/env php
+<?php
+
+/**
+
+title=测试 pivotModel::groupRecords();
+timeout=0
+cid=0
+
+- 步骤1：单字段分组，期望返回2个分组 @2
+- 步骤2：多字段分组，期望返回4个分组 @4
+- 步骤3：空记录数组，期望返回0个分组 @0
+- 步骤4：空分组字段，期望返回1个分组 @1
+- 步骤5：单条记录分组，期望特定分组包含1条记录 @1
+
+*/
+
+include dirname(__FILE__, 5) . '/test/lib/init.php';
+include dirname(__FILE__, 2) . '/lib/pivot.unittest.class.php';
+
+su('admin');
+
+$pivotTest = new pivotTest();
+
+// 准备测试数据 - 创建带有不同字段值的记录对象
+$record1 = new stdClass();
+$record1->status = 'active';
+$record1->type = 'bug';
+$record1->id = 1;
+
+$record2 = new stdClass();
+$record2->status = 'active';
+$record2->type = 'task';
+$record2->id = 2;
+
+$record3 = new stdClass();
+$record3->status = 'closed';
+$record3->type = 'bug';
+$record3->id = 3;
+
+$record4 = new stdClass();
+$record4->status = 'closed';
+$record4->type = 'task';
+$record4->id = 4;
+
+$record5 = new stdClass();
+$record5->status = 'active';
+$record5->type = 'bug';
+$record5->id = 5;
+
+$records = array($record1, $record2, $record3, $record4, $record5);
+
+r(count($pivotTest->groupRecordsTest($records, array('status')))) && p() && e('2'); // 步骤1：单字段分组，期望返回2个分组
+r(count($pivotTest->groupRecordsTest($records, array('status', 'type')))) && p() && e('4'); // 步骤2：多字段分组，期望返回4个分组
+r(count($pivotTest->groupRecordsTest(array(), array('status')))) && p() && e('0'); // 步骤3：空记录数组，期望返回0个分组
+r(count($pivotTest->groupRecordsTest($records, array()))) && p() && e('1'); // 步骤4：空分组字段，期望返回1个分组
+r(count($pivotTest->groupRecordsTest(array($record1), array('status'))['active'])) && p() && e('1'); // 步骤5：单条记录分组，期望特定分组包含1条记录