diff --git a/module/testcase/test/lib/testcasezen.unittest.class.php b/module/testcase/test/lib/testcasezen.unittest.class.php
index 3826ff887b..7e9dd3c601 100755
--- a/module/testcase/test/lib/testcasezen.unittest.class.php
+++ b/module/testcase/test/lib/testcasezen.unittest.class.php
@@ -3251,4 +3251,69 @@ class testcaseZenTest
         return $result;
     }
 
+    /**
+     * Test prepareEditExtras method.
+     *
+     * @param  array  $formDataArray
+     * @param  object $oldCase
+     * @param  array  $postData
+     * @access public
+     * @return object|false|array
+     */
+    public function prepareEditExtrasTest(array $formDataArray, object $oldCase, array $postData = array()): object|false|array
+    {
+        global $tester;
+
+        try {
+            // 保存原始POST和FILES数据
+            $originalPost = $_POST;
+            $originalFiles = $_FILES;
+
+            // 设置POST数据
+            $_POST = array();
+            $_FILES = array();
+            foreach($postData as $key => $value)
+            {
+                if($key === 'scriptFile') {
+                    $_FILES['scriptFile'] = $value;
+                } else {
+                    $_POST[$key] = $value;
+                }
+            }
+
+            // 获取testcase的zen对象实例
+            $zenClass = initReference('testcase');
+            $zenInstance = $zenClass->newInstance();
+
+            // 创建formData对象
+            $formData = new form();
+            foreach($formDataArray as $key => $value)
+            {
+                $formData->add($key, $value);
+            }
+
+            // 使用反射调用protected方法
+            $reflection = new ReflectionClass($zenInstance);
+            $method = $reflection->getMethod('prepareEditExtras');
+            $method->setAccessible(true);
+
+            // 调用方法
+            $returnValue = $method->invoke($zenInstance, $formData, $oldCase);
+
+            // 恢复原始POST和FILES数据
+            $_POST = $originalPost;
+            $_FILES = $originalFiles;
+
+            if(dao::isError()) return dao::getError();
+
+            return $returnValue;
+        } catch (Exception $e) {
+            // 恢复原始POST和FILES数据
+            $_POST = $originalPost;
+            $_FILES = $originalFiles;
+
+            return array('exception' => $e->getMessage());
+        }
+    }
+
 }
diff --git a/module/testcase/test/zen/prepareeditextras.php b/module/testcase/test/zen/prepareeditextras.php
new file mode 100755
index 0000000000..31a5d0219d
--- /dev/null
+++ b/module/testcase/test/zen/prepareeditextras.php
@@ -0,0 +1,205 @@
+#!/usr/bin/env php
+<?php
+
+/**
+
+title=测试 testcaseZen::prepareEditExtras();
+timeout=0
+cid=0
+
+- 执行testcaseTest模块的prepareEditExtrasTest方法，参数是$formData1, $oldCase, $postData1
+ - 属性id @1
+ - 属性version @1
+ - 属性lastEditedBy @admin
+- 执行testcaseTest模块的prepareEditExtrasTest方法，参数是$formData2, $oldCase, $postData2 第message条的0属性 @步骤1不能为空
+- 执行testcaseTest模块的prepareEditExtrasTest方法，参数是$formData3, $oldCase, $postData3 属性version @2
+- 执行testcaseTest模块的prepareEditExtrasTest方法，参数是$formData4, $oldCase, $postData4 属性storyVersion @2
+- 执行testcaseTest模块的prepareEditExtrasTest方法，参数是$formData5, $oldCase5, $postData5 属性script @&lt;script&gt;alert(&quot;test&quot;)&lt;/script&gt;
+
+*/
+
+// 1. 导入依赖
+include dirname(__FILE__, 5) . '/test/lib/init.php';
+include dirname(__FILE__, 2) . '/lib/testcasezen.unittest.class.php';
+
+// 2. zendata数据准备
+$caseTable = zenData('case');
+$caseTable->id->range('1-10');
+$caseTable->product->range('1');
+$caseTable->module->range('0');
+$caseTable->story->range('1,2,3,4,5');
+$caseTable->title->range('测试用例1,测试用例2,测试用例3,测试用例4,测试用例5');
+$caseTable->version->range('1');
+$caseTable->status->range('normal,wait');
+$caseTable->lastEditedDate->range('`2023-09-01 10:00:00`');
+$caseTable->storyVersion->range('1');
+$caseTable->auto->range('no,auto');
+$caseTable->script->range('[]');
+$caseTable->gen(10);
+
+$stepTable = zenData('casestep');
+$stepTable->id->range('1-20');
+$stepTable->case->range('1-10');
+$stepTable->version->range('1');
+$stepTable->desc->range('步骤描述1,步骤描述2,步骤描述3');
+$stepTable->expect->range('期望结果1,期望结果2,期望结果3');
+$stepTable->type->range('step,group,item');
+$stepTable->gen(20);
+
+$storyTable = zenData('story');
+$storyTable->id->range('1-10');
+$storyTable->product->range('1');
+$storyTable->title->range('需求1,需求2,需求3,需求4,需求5');
+$storyTable->version->range('1,2,3,4,5');
+$storyTable->gen(10);
+
+// 3. 用户登录
+su('admin');
+
+// 4. 创建测试实例
+$testcaseTest = new testcaseZenTest();
+
+// 5. 准备测试数据
+$oldCase = new stdClass();
+$oldCase->id = 1;
+$oldCase->product = 1;
+$oldCase->module = 0;
+$oldCase->story = 1;
+$oldCase->title = '测试用例标题1';
+$oldCase->version = 1;
+$oldCase->status = 'normal';
+$oldCase->lastEditedDate = '2023-09-01 10:00:00';
+$oldCase->storyVersion = 1;
+$oldCase->script = '';
+$oldCase->lib = 0;
+
+// 设置oldCase的steps属性（getStatusForUpdate需要）
+$step1 = new stdClass();
+$step1->desc = '步骤1';
+$step1->expect = '期望1';
+$step1->type = 'step';
+
+$step2 = new stdClass();
+$step2->desc = '步骤2';
+$step2->expect = '期望2';
+$step2->type = 'step';
+
+$step3 = new stdClass();
+$step3->desc = '步骤3';
+$step3->expect = '期望3';
+$step3->type = 'step';
+
+$oldCase->steps = array($step1, $step2, $step3);
+
+// 6. 测试步骤
+// 步骤1:正常情况 - 有效的steps和expects数据
+$formData1 = array(
+    'steps' => array('步骤1', '步骤2', '步骤3'),
+    'expects' => array('期望1', '期望2', '期望3'),
+    'title' => '测试用例标题1',
+    'story' => 1,
+    'auto' => 'no',
+    'linkCase' => '',
+    'script' => '',
+    'branch' => 0,
+    'module' => 0,
+    'product' => 1,
+    'stage' => array()
+);
+$postData1 = array(
+    'steps' => array('步骤1', '步骤2', '步骤3'),
+    'expects' => array('期望1', '期望2', '期望3'),
+    'stepType' => array('step', 'step', 'step'),
+    'lastEditedDate' => '2023-09-01 10:00:00'
+);
+r($testcaseTest->prepareEditExtrasTest($formData1, $oldCase, $postData1)) && p('id,version,lastEditedBy') && e('1,1,admin');
+
+// 步骤2:边界情况 - expect存在但对应的step为空
+$formData2 = array(
+    'steps' => array('步骤1', '', '步骤3'),
+    'expects' => array('期望1', '期望2', '期望3'),
+    'title' => '测试用例标题1',
+    'story' => 1,
+    'auto' => 'no',
+    'linkCase' => '',
+    'script' => '',
+    'branch' => 0,
+    'module' => 0,
+    'product' => 1,
+    'stage' => array()
+);
+$postData2 = array(
+    'steps' => array('步骤1', '', '步骤3'),
+    'expects' => array('期望1', '期望2', '期望3'),
+    'stepType' => array('step', 'step', 'step'),
+    'lastEditedDate' => '2023-09-01 10:00:00'
+);
+r($testcaseTest->prepareEditExtrasTest($formData2, $oldCase, $postData2)) && p('message:0') && e('步骤1不能为空');
+
+// 步骤3:步骤变更情况 - 修改step内容导致版本号+1
+$formData3 = array(
+    'steps' => array('修改后的步骤1', '步骤2', '步骤3'),
+    'expects' => array('期望1', '期望2', '期望3'),
+    'title' => '测试用例标题1',
+    'story' => 1,
+    'auto' => 'no',
+    'linkCase' => '',
+    'script' => '',
+    'branch' => 0,
+    'module' => 0,
+    'product' => 1,
+    'stage' => array()
+);
+$postData3 = array(
+    'steps' => array('修改后的步骤1', '步骤2', '步骤3'),
+    'expects' => array('期望1', '期望2', '期望3'),
+    'stepType' => array('step', 'step', 'step'),
+    'lastEditedDate' => '2023-09-01 10:00:00'
+);
+r($testcaseTest->prepareEditExtrasTest($formData3, $oldCase, $postData3)) && p('version') && e('2');
+
+// 步骤4:story变更 - story ID改变时storyVersion应更新
+$formData4 = array(
+    'steps' => array('步骤1', '步骤2'),
+    'expects' => array('期望1', '期望2'),
+    'title' => '测试用例标题1',
+    'story' => 2,
+    'auto' => 'no',
+    'linkCase' => '',
+    'script' => '',
+    'branch' => 0,
+    'module' => 0,
+    'product' => 1,
+    'stage' => array()
+);
+$postData4 = array(
+    'steps' => array('步骤1', '步骤2'),
+    'expects' => array('期望1', '期望2'),
+    'stepType' => array('step', 'step'),
+    'lastEditedDate' => '2023-09-01 10:00:00'
+);
+r($testcaseTest->prepareEditExtrasTest($formData4, $oldCase, $postData4)) && p('storyVersion') && e('2');
+
+// 步骤5:auto为auto且有script时进行HTML实体转义
+$oldCase5 = clone $oldCase;
+$oldCase5->script = '<script>alert("test")</script>';
+$formData5 = array(
+    'steps' => array('步骤1', '步骤2'),
+    'expects' => array('期望1', '期望2'),
+    'title' => '测试用例标题1',
+    'story' => 1,
+    'auto' => 'auto',
+    'script' => '<script>alert("test")</script>',
+    'linkCase' => '',
+    'branch' => 0,
+    'module' => 0,
+    'product' => 1,
+    'stage' => array()
+);
+$postData5 = array(
+    'steps' => array('步骤1', '步骤2'),
+    'expects' => array('期望1', '期望2'),
+    'stepType' => array('step', 'step'),
+    'lastEditedDate' => '2023-09-01 10:00:00'
+);
+r($testcaseTest->prepareEditExtrasTest($formData5, $oldCase5, $postData5)) && p('script') && e('&lt;script&gt;alert(&quot;test&quot;)&lt;/script&gt;');
\ No newline at end of file