247 lines
9.0 KiB
Python
247 lines
9.0 KiB
Python
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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"""
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OPC UA模块快速测试
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简单验证OPC UA内置函数模块的基本功能
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"""
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import sys
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import os
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import time
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# 添加项目根目录到路径
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sys.path.insert(0, os.path.join(os.path.dirname(__file__), '..'))
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from services.online_script.built_in_modules.opc_ua_module import VWEDOpcUaModule
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from tests.test_opc_ua_server import OpcUaTestServer
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def test_basic_functionality():
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"""测试基本功能"""
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print("=" * 60)
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print("OPC UA模块基本功能测试")
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print("=" * 60)
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# 1. 启动测试服务器
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print("\n1. 启动OPC UA测试服务器...")
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server = OpcUaTestServer(host='localhost', port=4840)
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try:
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server.start_server()
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time.sleep(2) # 等待服务器启动
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server_info = server.get_server_info()
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endpoint = server_info['endpoint']
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namespace_idx = server_info['namespace_index']
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print(f" 服务器端点: {endpoint}")
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print(f" 命名空间索引: {namespace_idx}")
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print(" 服务器启动成功！")
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# 2. 创建OPC UA模块实例
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print("\n2. 创建OPC UA模块实例...")
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opc_module = VWEDOpcUaModule("test_script")
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print(" 模块实例创建成功！")
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# 3. 测试读取功能
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print("\n3. 测试读取功能...")
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# 测试读取整数节点
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try:
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value = opc_module.read_opc_value_with_namespace(namespace_idx, "i=1001", endpoint)
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print(f" ✓ 读取整数节点: ns={namespace_idx};i=1001 = {value}")
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except Exception as e:
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print(f" ✗ 读取整数节点失败: {e}")
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# 测试读取字符串节点
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try:
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value = opc_module.read_opc_value_with_namespace(namespace_idx, "s=StringNodeId", endpoint)
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print(f" ✓ 读取字符串节点: ns={namespace_idx};s=StringNodeId = {value}")
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except Exception as e:
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print(f" ✗ 读取字符串节点失败: {e}")
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# 测试读取动态节点
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try:
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value = opc_module.read_opc_value_with_namespace(namespace_idx, "Counter", endpoint)
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print(f" ✓ 读取计数器节点: ns={namespace_idx};Counter = {value}")
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except Exception as e:
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print(f" ✗ 读取计数器节点失败: {e}")
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# 4. 测试写入功能
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print("\n4. 测试写入功能...")
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try:
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# 先读取原始值
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original_value = opc_module.read_opc_value_with_namespace(namespace_idx, "i=1001", endpoint)
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print(f" 原始值: {original_value}")
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# 写入新值
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new_value = 12345
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result = opc_module.write_opc_value_with_namespace(namespace_idx, "i=1001", new_value, endpoint)
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print(f" ✓ 写入新值 {new_value}: {result}")
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# 验证写入
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written_value = opc_module.read_opc_value_with_namespace(namespace_idx, "i=1001", endpoint)
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print(f" ✓ 验证写入值: {written_value}")
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if written_value == new_value:
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print(" ✓ 写入验证成功！")
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else:
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print(" ✗ 写入验证失败！")
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# 恢复原始值
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opc_module.write_opc_value_with_namespace(namespace_idx, "i=1001", original_value, endpoint)
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print(f" ✓ 恢复原始值: {original_value}")
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except Exception as e:
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print(f" ✗ 写入测试失败: {e}")
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# 5. 测试订阅功能
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print("\n5. 测试订阅功能...")
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try:
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# 创建订阅
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value1 = opc_module.read_opc_value_by_subscription(namespace_idx, "Counter", endpoint)
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print(f" ✓ 订阅计数器（第一次）: {value1}")
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# 等待值变化
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print(" 等待3秒让值发生变化...")
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time.sleep(3)
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# 再次读取订阅值
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value2 = opc_module.read_opc_value_by_subscription(namespace_idx, "Counter", endpoint)
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print(f" ✓ 订阅计数器（第二次）: {value2}")
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if value1 != value2:
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print(" ✓ 订阅功能正常，值发生了变化！")
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else:
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print(" ! 订阅功能可能有问题，值没有变化")
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except Exception as e:
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print(f" ✗ 订阅测试失败: {e}")
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# 6. 测试错误处理
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print("\n6. 测试错误处理...")
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# 测试读取不存在的节点
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try:
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opc_module.read_opc_value_with_namespace(namespace_idx, "i=99999", endpoint)
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print(" ✗ 应该抛出异常但没有抛出")
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except RuntimeError as e:
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if str(e) == "read_opc_value error":
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print(" ✓ 正确处理不存在节点的错误")
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else:
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print(f" ! 异常消息不正确: {e}")
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except Exception as e:
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print(f" ! 异常类型不正确: {e}")
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# 7. 显示动态数据
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print("\n7. 监控动态数据（5秒）...")
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start_time = time.time()
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while time.time() - start_time < 5:
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try:
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counter = opc_module.read_opc_value_with_namespace(namespace_idx, "Counter", endpoint)
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temp = opc_module.read_opc_value_with_namespace(namespace_idx, "Temperature", endpoint)
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bool_val = opc_module.read_opc_value_with_namespace(namespace_idx, "BooleanVariable", endpoint)
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timestamp = time.strftime('%H:%M:%S')
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print(f" [{timestamp}] 计数器: {counter}, 温度: {temp:.2f}°C, 布尔值: {bool_val}")
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time.sleep(1)
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except Exception as e:
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print(f" 监控错误: {e}")
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break
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# 8. 清理资源
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print("\n8. 清理资源...")
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opc_module.cleanup()
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print(" ✓ OPC UA模块资源清理完成")
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print("\n" + "=" * 60)
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print("✓ 基本功能测试完成！")
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print("=" * 60)
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except Exception as e:
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print(f"测试过程中发生错误: {e}")
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import traceback
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traceback.print_exc()
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finally:
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# 停止服务器
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print("\n停止测试服务器...")
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server.stop_server()
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print("测试服务器已停止")
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def show_server_info():
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"""显示服务器信息"""
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print("=" * 60)
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print("OPC UA测试服务器信息")
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print("=" * 60)
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server = OpcUaTestServer(host='localhost', port=4840)
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try:
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server.start_server()
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time.sleep(2)
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server_info = server.get_server_info()
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node_info = server.get_node_info()
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print(f"\n服务器信息:")
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print(f" 端点: {server_info['endpoint']}")
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print(f" 主机: {server_info['host']}")
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print(f" 端口: {server_info['port']}")
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print(f" 运行状态: {server_info['running']}")
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print(f" 命名空间索引: {server_info['namespace_index']}")
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print(f"\n可用测试节点:")
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if node_info:
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for name, info in node_info.items():
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node_id_full = f"ns={info['namespace_index']};{info['node_id']}"
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print(f" {name}:")
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print(f" NodeId: {node_id_full}")
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print(f" 值: {info['value']} ({info['data_type']})")
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print(f"\n使用示例:")
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print(f"# Python代码示例")
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print(f"from services.online_script.built_in_modules.opc_ua_module import VWEDOpcUaModule")
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print(f"opc = VWEDOpcUaModule('test')")
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print(f"")
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print(f"# 读取整数节点")
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print(f"value = opc.read_opc_value_with_namespace({server_info['namespace_index']}, 'i=1001', '{server_info['endpoint']}')")
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print(f"print(f'整数节点值: {{value}}')")
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print(f"")
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print(f"# 写入值")
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print(f"result = opc.write_opc_value_with_namespace({server_info['namespace_index']}, 'i=1001', 8888, '{server_info['endpoint']}')")
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print(f"print(f'写入结果: {{result}}')")
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print(f"")
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print(f"# 订阅读取")
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print(f"value = opc.read_opc_value_by_subscription({server_info['namespace_index']}, 'Counter', '{server_info['endpoint']}')")
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print(f"print(f'订阅值: {{value}}')")
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except Exception as e:
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print(f"启动服务器失败: {e}")
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finally:
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server.stop_server()
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def main():
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"""主函数"""
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print("VWED OPC UA模块测试工具")
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print("请选择操作:")
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print("1. 运行基本功能测试")
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print("2. 显示服务器信息和使用示例")
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choice = input("请输入选择 (1 或 2, 默认1): ").strip()
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if choice == "2":
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show_server_info()
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else:
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test_basic_functionality()
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if __name__ == "__main__":
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main() |