+ [misc] Add unit tests for todoModel::dateRange() method

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

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

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

@@ -460,4 +460,23 @@ class todoTest
         $result = $this->objectModel->insert($todo);
         return dao::isError() ? dao::getError() : $result;
     }
+
+    /**
+     * Test dateRange method.
+     *
+     * @param  string $type
+     * @access public
+     * @return array
+     */
+    public function dateRangeTest(string $type): array
+    {
+        $reflection = new ReflectionClass($this->objectModel);
+        $method = $reflection->getMethod('dateRange');
+        $method->setAccessible(true);
+        
+        $result = $method->invoke($this->objectModel, $type);
+        if(dao::isError()) return dao::getError();
+
+        return $result;
+    }
 }

module/todo/test/model/daterange.php

@@ -0,0 +1,45 @@
+#!/usr/bin/env php
+<?php
+
+/**
+
+title=测试 todoModel::dateRange();
+timeout=0
+cid=0
+
+- 执行todoTest模块的dateRangeTest方法，参数是'future' 
+ - 属性begin @2030-01-01
+ - 属性end @2030-01-01
+- 执行todoTest模块的dateRangeTest方法，参数是'20250101' 
+ - 属性begin @2025-01-01 00:00:00
+ - 属性end @2025-01-01 23:59:59
+- 执行todoTest模块的dateRangeTest方法，参数是'today' 属性begin @2025-09-10
+- 执行todoTest模块的dateRangeTest方法，参数是'before' 
+ - 属性begin @
+ - 属性end @2025-09-09
+- 执行todoTest模块的dateRangeTest方法，参数是'yesterday' 属性begin @2025-09-09
+- 执行todoTest模块的dateRangeTest方法，参数是'thisweek' 属性begin @2025-09-08 00:00:00
+- 执行todoTest模块的dateRangeTest方法，参数是'invalid_type' 
+ - 属性begin @
+ - 属性end @
+
+*/
+
+include dirname(__FILE__, 5) . '/test/lib/init.php';
+include dirname(__FILE__, 2) . '/lib/todo.unittest.class.php';
+
+su('admin');
+
+global $tester;
+$tester->loadModel('todo');
+$tester->app->loadClass('date', true);
+
+$todoTest = new todoTest();
+
+r($todoTest->dateRangeTest('future')) && p('begin,end') && e('2030-01-01,2030-01-01');
+r($todoTest->dateRangeTest('20250101')) && p('begin,end') && e('2025-01-01 00:00:00,2025-01-01 23:59:59');
+r($todoTest->dateRangeTest('today')) && p('begin') && e('2025-09-10');
+r($todoTest->dateRangeTest('before')) && p('begin,end') && e(',2025-09-09');
+r($todoTest->dateRangeTest('yesterday')) && p('begin') && e('2025-09-09');
+r($todoTest->dateRangeTest('thisweek')) && p('begin') && e('2025-09-08 00:00:00');
+r($todoTest->dateRangeTest('invalid_type')) && p('begin,end') && e(',');