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using System;
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using Xunit;
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using CncCollector.Config;
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namespace CncCollector.Tests
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{
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/// <summary>
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/// ConfigLoader 静态类测试（数据库连接部分通过异常处理实现，不抛出异常）
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/// </summary>
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public class ConfigLoaderTests
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{
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[Fact(DisplayName = "LoadRuntimeConfig_无效连接字符串_不抛异常")]
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public void LoadRuntimeConfig_无效连接字符串_不抛异常()
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{
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var cfg = new CollectorConfig();
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// 使用无效连接串，理论上应被内部 catch 捕获，不抛异常
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ConfigLoader.LoadRuntimeConfig("Server=invalid;Database=nosuchdb;User Id=x;Password=y;", cfg);
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}
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[Fact(DisplayName = "LoadRuntimeConfig_Null配置对象_不抛异常")]
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public void LoadRuntimeConfig_Null配置对象_不抛异常()
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{
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// 第二个参数为 null，方法内部需要处理空对象场景（不会抛出异常）
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ConfigLoader.LoadRuntimeConfig("Server=invalid;Database=nosuchdb;User Id=x;Password=y;", null);
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}
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[Fact(DisplayName = "LoadRuntimeConfig_默认配置对象_属性值不变")]
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public void LoadRuntimeConfig_默认配置对象_属性值不变()
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{
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var cfg = new CollectorConfig();
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ConfigLoader.LoadRuntimeConfig("Server=invalid;Database=nosuchdb;User Id=x;Password=y;", cfg);
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// 连接失败时应保持默认值
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Assert.Equal(5800, cfg.ApiPort);
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Assert.Equal("collector_api_key_2026", cfg.ApiKey);
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Assert.Equal(10, cfg.HeartbeatIntervalSeconds);
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Assert.Equal(30, cfg.ConfigPollIntervalSeconds);
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Assert.Equal("01:00", cfg.DailySummaryTime);
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Assert.Equal("CncCollector", cfg.ServiceId);
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Assert.Equal(3, cfg.CollectRetryCount);
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Assert.Equal(30, cfg.CollectRetryIntervalSeconds);
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Assert.Equal(5, cfg.CollectFailAlertThreshold);
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}
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[Fact(DisplayName = "LoadRuntimeConfig_各配置项映射正确")]
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public void LoadRuntimeConfig_各配置项映射正确()
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{
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// 设定一个初始对象的自定义值，模拟数据库连接失败时保持这些初始值
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var cfg = new CollectorConfig
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{
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ApiPort = 12345,
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ApiKey = "custom_key",
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HeartbeatIntervalSeconds = 99,
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ConfigPollIntervalSeconds = 77,
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DailySummaryTime = "04:44",
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ServiceId = "CustomSvc",
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CollectRetryCount = 7,
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CollectRetryIntervalSeconds = 11,
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CollectFailAlertThreshold = 9
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};
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ConfigLoader.LoadRuntimeConfig("Server=invalid;Database=nosuchdb;User Id=x;Password=y;", cfg);
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// 由于数据库连接失败，全部属性应保持初始值
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Assert.Equal(12345, cfg.ApiPort);
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Assert.Equal("custom_key", cfg.ApiKey);
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Assert.Equal(99, cfg.HeartbeatIntervalSeconds);
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Assert.Equal(77, cfg.ConfigPollIntervalSeconds);
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Assert.Equal("04:44", cfg.DailySummaryTime);
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Assert.Equal("CustomSvc", cfg.ServiceId);
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Assert.Equal(7, cfg.CollectRetryCount);
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Assert.Equal(11, cfg.CollectRetryIntervalSeconds);
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Assert.Equal(9, cfg.CollectFailAlertThreshold);
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}
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}
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}
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