test(vefaas): update Unitest of CloudAgentEngine and CloudApp

Author: floritange

docs/docs/deploy.md

@@ -117,5 +117,47 @@ app = CloudApp(name="veadk-agent", endpoint=ENDPOINT)
 cloud_app.invoke(user_id=USER_ID, session_id=SESSION_ID, message=...)
 ```
 
-- 更新自身代码
-- 删除自身
+## 更新云应用
+
+### 通过 CloudAgentEngine 更新
+
+当您需要更新已部署的Agent代码时，可以使用`update_function_code`方法：
+
+```python
+from veadk.cloud.cloud_agent_engine import CloudAgentEngine
+
+engine = CloudAgentEngine()
+
+# 更新现有应用的代码，保持相同的访问端点
+updated_cloud_app = engine.update_function_code(
+    application_name="my-agent-app",  # 现有应用名称
+    path="/my-agent-project"        # 本地项目路径
+)
+
+print(f"应用已更新，访问地址：{updated_cloud_app.vefaas_endpoint}")
+```
+
+**注意事项：**
+- 更新操作会保持相同的访问端点URL
+- 确保项目路径包含`agent.py`文件
+
+
+## 删除云应用
+
+### 通过 CloudAgentEngine 删除
+
+```python
+from veadk.cloud.cloud_agent_engine import CloudAgentEngine
+
+engine = CloudAgentEngine()
+
+# 删除指定的云应用
+engine.remove("my-agent-app")
+```
+
+执行时会提示确认：
+```
+Confirm delete cloud app my-agent-app? (y/N): y
+```
+
+输入`y`确认删除，输入其他任何字符或直接回车则取消删除。

tests/test_cloud.py

@@ -0,0 +1,131 @@
+# Copyright (c) 2025 Beijing Volcano Engine Technology Co., Ltd. and/or its affiliates.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import os
+import tempfile
+import pytest
+from unittest.mock import Mock, patch, AsyncMock
+
+from veadk.cloud.cloud_agent_engine import CloudAgentEngine
+
+
+@pytest.mark.asyncio
+async def test_cloud():
+    app_name = "test-app"
+    key = "CloudTestIdentifier123"
+    test_endpoint = "https://test-endpoint.volcengine.com"
+    test_message = "Hello cloud agent"
+
+    # Create temporary directory with required agent.py file for testing
+    with tempfile.TemporaryDirectory() as temp_dir:
+        with open(os.path.join(temp_dir, "agent.py"), "w") as f:
+            f.write(f"# Test agent implementation with {key}")
+
+        with patch.dict(
+            os.environ,
+            {
+                "VOLCENGINE_ACCESS_KEY": "test_access_key",
+                "VOLCENGINE_SECRET_KEY": "test_secret_key",
+            },
+        ):
+            # Mock shutil.copy to avoid template file copying issues
+            with patch("shutil.copy"):
+                with patch(
+                    "veadk.cloud.cloud_agent_engine.VeFaaS"
+                ) as mock_vefaas_class:
+                    # Setup mock VeFaaS service for all operations
+                    mock_vefaas_service = Mock()
+                    mock_vefaas_class.return_value = mock_vefaas_service
+
+                    # Mock deploy operation
+                    mock_vefaas_service.deploy.return_value = (
+                        test_endpoint,
+                        "app-123",
+                        "func-456",
+                    )
+
+                    # Mock update operation
+                    mock_vefaas_service._update_function_code.return_value = (
+                        test_endpoint,
+                        "app-123",
+                        "func-456",
+                    )
+
+                    # Mock remove operation
+                    mock_vefaas_service.find_app_id_by_name.return_value = "app-123"
+                    mock_vefaas_service.delete.return_value = None
+
+                    # Test CloudAgentEngine creation and deploy functionality
+                    engine = CloudAgentEngine()
+
+                    # Test deploy operation
+                    cloud_app = engine.deploy(application_name=app_name, path=temp_dir)
+
+                    # Verify deployment result contains expected values
+                    assert cloud_app.vefaas_application_name == app_name
+                    assert cloud_app.vefaas_endpoint == test_endpoint
+                    assert cloud_app.vefaas_application_id == "app-123"
+
+                    # Test update_function_code operation
+                    updated_app = engine.update_function_code(
+                        application_name=app_name, path=temp_dir
+                    )
+
+                    # Verify update result maintains same endpoint
+                    assert updated_app.vefaas_endpoint == test_endpoint
+
+                    # Test remove operation with mocked user input
+                    with patch("builtins.input", return_value="y"):
+                        engine.remove(app_name)
+                        mock_vefaas_service.find_app_id_by_name.assert_called_with(
+                            app_name
+                        )
+                        mock_vefaas_service.delete.assert_called_with("app-123")
+
+                    # Test CloudApp message_send functionality
+                    mock_response = Mock()
+                    mock_message = Mock()
+                    mock_response.root.result = mock_message
+
+                    with patch.object(cloud_app, "_get_a2a_client") as mock_get_client:
+                        mock_client = AsyncMock()
+                        mock_client.send_message = AsyncMock(return_value=mock_response)
+                        mock_get_client.return_value = mock_client
+
+                        # Test message sending to cloud agent
+                        result = await cloud_app.message_send(
+                            message=test_message,
+                            session_id="session-123",
+                            user_id="user-456",
+                        )
+
+                        # Verify message sending result
+                        assert result == mock_message
+                        mock_client.send_message.assert_called_once()
+
+                    # Test CloudApp delete_self functionality
+                    with patch("builtins.input", return_value="y"):
+                        with patch(
+                            "veadk.cli.services.vefaas.vefaas.VeFaaS"
+                        ) as mock_vefaas_in_app:
+                            mock_vefaas_client = Mock()
+                            mock_vefaas_in_app.return_value = mock_vefaas_client
+                            mock_vefaas_client.delete.return_value = None
+
+                            cloud_app.delete_self()
+                            mock_vefaas_client.delete.assert_called_with("app-123")
+
+                    # Verify all mocks were called as expected
+                    mock_vefaas_service.deploy.assert_called_once()
+                    mock_vefaas_service._update_function_code.assert_called_once()