diff --git a/module/instance/test/lib/instance.unittest.class.php b/module/instance/test/lib/instance.unittest.class.php
index 59bf232b92..445c4693df 100644
--- a/module/instance/test/lib/instance.unittest.class.php
+++ b/module/instance/test/lib/instance.unittest.class.php
@@ -316,4 +316,19 @@ class instanceTest
 
         return $result;
     }
+
+    /**
+     * Test enoughMemory method.
+     *
+     * @param  object $cloudApp
+     * @access public
+     * @return bool
+     */
+    public function enoughMemoryTest(object $cloudApp): bool
+    {
+        $result = $this->objectModel->enoughMemory($cloudApp);
+        if(dao::isError()) return dao::getError();
+
+        return $result;
+    }
 }
\ No newline at end of file
diff --git a/module/instance/test/model/enoughmemory.php b/module/instance/test/model/enoughmemory.php
new file mode 100755
index 0000000000..17d9ce8279
--- /dev/null
+++ b/module/instance/test/model/enoughmemory.php
@@ -0,0 +1,49 @@
+#!/usr/bin/env php
+<?php
+
+/**
+
+title=测试 instanceModel::enoughMemory();
+timeout=0
+cid=0
+
+- 步骤1：正常情况-低内存需求（测试环境集群资源为0） @0
+- 步骤2：高内存需求 @0
+- 步骤3：边界值测试 @0
+- 步骤4：零内存需求 @1
+- 步骤5：负数内存需求 @1
+
+*/
+
+// 1. 导入依赖（路径固定，不可修改）
+include dirname(__FILE__, 5) . '/test/lib/init.php';
+include dirname(__FILE__, 2) . '/lib/instance.unittest.class.php';
+
+// 2. 用户登录（选择合适角色）
+su('admin');
+
+// 3. 创建测试实例（变量名与模块名一致）
+$instanceTest = new instanceTest();
+
+// 4. 准备测试数据 - 创建不同内存需求的应用对象
+$lowMemoryApp = new stdclass;
+$lowMemoryApp->memory = 512; // 512MB
+
+$highMemoryApp = new stdclass;
+$highMemoryApp->memory = 16384; // 16GB
+
+$boundaryApp = new stdclass;
+$boundaryApp->memory = 1000; // 假设为边界值
+
+$zeroMemoryApp = new stdclass;
+$zeroMemoryApp->memory = 0;
+
+$negativeMemoryApp = new stdclass;
+$negativeMemoryApp->memory = -100;
+
+// 5. 强制要求：必须包含至少5个测试步骤
+r($instanceTest->enoughMemoryTest($lowMemoryApp)) && p() && e('0');      // 步骤1：正常情况-低内存需求（测试环境集群资源为0）
+r($instanceTest->enoughMemoryTest($highMemoryApp)) && p() && e('0');     // 步骤2：高内存需求
+r($instanceTest->enoughMemoryTest($boundaryApp)) && p() && e('0');       // 步骤3：边界值测试
+r($instanceTest->enoughMemoryTest($zeroMemoryApp)) && p() && e('1');     // 步骤4：零内存需求
+r($instanceTest->enoughMemoryTest($negativeMemoryApp)) && p() && e('1'); // 步骤5：负数内存需求
\ No newline at end of file