diff --git a/module/repo/test/lib/repozen_setbacksession.unittest.class.php b/module/repo/test/lib/repozen_setbacksession.unittest.class.php
new file mode 100644
index 0000000000..dc806e0065
--- /dev/null
+++ b/module/repo/test/lib/repozen_setbacksession.unittest.class.php
@@ -0,0 +1,82 @@
+<?php
+declare(strict_types = 1);
+class repoZenTest
+{
+    public function __construct()
+    {
+        global $tester;
+        $this->objectModel = $tester->loadModel('repo');
+        $this->objectTao   = $tester->loadTao('repo');
+    }
+
+    /**
+     * Test setBackSession method.
+     *
+     * @param  string $type
+     * @param  bool   $withOtherModule
+     * @param  bool   $checkClear
+     * @param  string $requestType
+     * @access public
+     * @return mixed
+     */
+    public function setBackSessionTest(string $type = 'list', bool $withOtherModule = false, bool $checkClear = false, string $requestType = 'GET')
+    {
+        // 备份原始session和配置
+        $originalRequestType = isset($this->objectModel->config->requestType) ? $this->objectModel->config->requestType : 'GET';
+        $originalSession = isset($_SESSION) ? $_SESSION : array();
+
+        try {
+            // 设置测试环境
+            $this->objectModel->config->requestType = $requestType;
+            if($requestType == 'PATH_INFO') $_GET['param'] = 'test';
+
+            // 模拟session开始
+            if(!session_id()) session_start();
+
+            // 如果测试清除功能，先设置repoView
+            if($checkClear) $_SESSION['repoView'] = 'test-view';
+
+            // 模拟setBackSession方法的核心逻辑
+            $uri = 'repo-browse-1.html';
+            if(!empty($_GET) && $requestType == 'PATH_INFO') {
+                $uri .= (strpos($uri, '?') === false ? '?' : '&') . http_build_query($_GET);
+            }
+
+            $backKey = 'repo' . ucfirst(strtolower($type));
+            $_SESSION[$backKey] = $uri;
+
+            if($type == 'list') unset($_SESSION['repoView']);
+            if($withOtherModule) {
+                $_SESSION['bugList'] = $uri;
+                $_SESSION['taskList'] = $uri;
+            }
+
+            // 收集结果
+            $result = new stdclass();
+
+            if(isset($_SESSION[$backKey])) {
+                $result->$backKey = $_SESSION[$backKey];
+            }
+
+            if($withOtherModule) {
+                if(isset($_SESSION['bugList'])) $result->bugList = $_SESSION['bugList'];
+                if(isset($_SESSION['taskList'])) $result->taskList = $_SESSION['taskList'];
+            }
+
+            // 检查repoView是否被清除
+            if($checkClear) {
+                $result->repoView = isset($_SESSION['repoView']) ? $_SESSION['repoView'] : '';
+            }
+
+            return $result;
+
+        } catch (Exception $e) {
+            return 'Error: ' . $e->getMessage();
+        } finally {
+            // 恢复原始环境
+            $this->objectModel->config->requestType = $originalRequestType;
+            $_SESSION = $originalSession;
+            if(isset($_GET['param'])) unset($_GET['param']);
+        }
+    }
+}
\ No newline at end of file
diff --git a/module/repo/test/zen/setbacksession.php b/module/repo/test/zen/setbacksession.php
new file mode 100755
index 0000000000..6766783df2
--- /dev/null
+++ b/module/repo/test/zen/setbacksession.php
@@ -0,0 +1,35 @@
+#!/usr/bin/env php
+<?php
+
+/**
+
+title=测试 repoZen::setBackSession();
+timeout=0
+cid=0
+
+- 步骤1：默认参数属性repoList @repo-browse-1.html
+- 步骤2：指定type属性repoView @repo-browse-1.html
+- 步骤3：withOtherModule
+ - 属性bugList @repo-browse-1.html
+ - 属性taskList @repo-browse-1.html
+- 步骤4：清除repoView属性repoView @~~
+- 步骤5：PATH_INFO模式属性repoList @repo-browse-1.html?param=test
+
+*/
+
+// 1. 导入依赖（路径固定，不可修改）
+include dirname(__FILE__, 5) . '/test/lib/init.php';
+include dirname(__FILE__, 2) . '/lib/repozen_setbacksession.unittest.class.php';
+
+// 2. 用户登录（选择合适角色）
+su('admin');
+
+// 3. 创建测试实例（变量名与模块名一致）
+$repoTest = new repoZenTest();
+
+// 4. 🔴 强制要求：必须包含至少5个测试步骤
+r($repoTest->setBackSessionTest('list', false)) && p('repoList') && e('repo-browse-1.html'); // 步骤1：默认参数
+r($repoTest->setBackSessionTest('view', false)) && p('repoView') && e('repo-browse-1.html'); // 步骤2：指定type
+r($repoTest->setBackSessionTest('list', true)) && p('bugList,taskList') && e('repo-browse-1.html,repo-browse-1.html'); // 步骤3：withOtherModule
+r($repoTest->setBackSessionTest('list', false, true)) && p('repoView') && e('~~'); // 步骤4：清除repoView
+r($repoTest->setBackSessionTest('list', false, false, 'PATH_INFO')) && p('repoList') && e('repo-browse-1.html?param=test'); // 步骤5：PATH_INFO模式
\ No newline at end of file