+ [misc] Add unit tests for treeZen::setRoot() method

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

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

module/tree/test/lib/treezen.unittest.class.php

@@ -0,0 +1,28 @@
+<?php
+declare(strict_types = 1);
+class treeTest
+{
+    public function __construct()
+    {
+        $this->objectZen = initReference('tree');
+    }
+
+    /**
+     * Test setRoot method.
+     *
+     * @param  int    $rootID
+     * @param  string $viewType
+     * @param  string $branch
+     * @access public
+     * @return mixed
+     */
+    public function setRootTest(int $rootID = 0, string $viewType = '', string $branch = '')
+    {
+        $method = $this->objectZen->getMethod('setRoot');
+        $method->setAccessible(true);
+        $result = $method->invokeArgs($this->objectZen->newInstance(), array($rootID, $viewType, $branch));
+        if(dao::isError()) return dao::getError();
+
+        return $result;
+    }
+}

module/tree/test/zen/setroot.php

@@ -0,0 +1,37 @@
+#!/usr/bin/env php
+<?php
+
+/**
+
+title=测试 treeZen::setRoot();
+timeout=0
+cid=0
+
+- 执行treeTest模块的setRootTest方法，参数是0, 'line', ''
+ - 属性id @0
+ - 属性rootType @line
+- 执行treeTest模块的setRootTest方法，参数是0, 'host', ''
+ - 属性id @0
+ - 属性rootType @line
+- 执行treeTest模块的setRootTest方法，参数是0, 'datasource', ''
+ - 属性id @0
+ - 属性rootType @line
+- 执行treeTest模块的setRootTest方法，参数是1, 'bug', '' 属性rootType @product
+- 执行treeTest模块的setRootTest方法，参数是1, 'story', '' 属性rootType @product
+
+*/
+
+include dirname(__FILE__, 5) . '/test/lib/init.php';
+include dirname(__FILE__, 2) . '/lib/treezen.unittest.class.php';
+
+zenData('product')->loadYaml('product', false, 2)->gen(5);
+
+su('admin');
+
+$treeTest = new treeTest();
+
+r($treeTest->setRootTest(0, 'line', '')) && p('id,rootType') && e('0,line');
+r($treeTest->setRootTest(0, 'host', '')) && p('id,rootType') && e('0,line');
+r($treeTest->setRootTest(0, 'datasource', '')) && p('id,rootType') && e('0,line');
+r($treeTest->setRootTest(1, 'bug', '')) && p('rootType') && e('product');
+r($treeTest->setRootTest(1, 'story', '')) && p('rootType') && e('product');