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using System;
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using System.Reflection;
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using System.Text;
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using Xunit;
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using CncModels.Enum;
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namespace CncModels.Tests
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{
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/// <summary>
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/// 测试所有 CncModels.Enum 下的字符串常量，确保值与命名约定一致。
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/// 约定：字段名转换为 snake_case 小写字符串后应当与常量值一致。
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/// 例如 AlertType.CollectFail 应为 "collect_fail"。
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/// </summary>
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public class EnumTests
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{
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/// <summary>
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/// 遍历除 LogLevel 外的所有枚举类，验证 snake_case 命名约定
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/// 覆盖场景：AlertType/CollectStatus/DataStatus/CardType/DataType/MatchBy/SegmentCloseReason/CollectorServiceStatus/ValueType
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/// </summary>
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[Fact]
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public void SnakeCaseEnums_ShouldMatchFieldNames()
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{
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Type[] snakeCaseEnums = new Type[]
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{
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typeof(AlertType),
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typeof(CollectStatus),
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typeof(DataStatus),
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typeof(CardType),
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typeof(DataType),
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typeof(MatchBy),
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typeof(SegmentCloseReason),
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typeof(CollectorServiceStatus),
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typeof(CncModels.Enum.ValueType)
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};
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foreach (var t in snakeCaseEnums)
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{
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var fields = t.GetFields(BindingFlags.Public | BindingFlags.Static);
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Assert.True(fields.Length > 0, $"类型 {t.Name} 不包含公共静态字段。");
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foreach (var f in fields)
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{
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if (f.FieldType != typeof(string)) continue;
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string value = (string)f.GetValue(null);
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string expected = ToSnakeCase(f.Name);
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Assert.Equal(expected, value);
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}
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}
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}
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/// <summary>
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/// 验证 LogLevel 枚举值为大写（数据库中 log_level 存储为大写）
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/// 覆盖场景：DEBUG/INFO/WARN/ERROR 全部值
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/// </summary>
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[Fact]
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public void LogLevel_ShouldBeUppercase()
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{
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Assert.Equal("DEBUG", LogLevel.Debug);
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Assert.Equal("INFO", LogLevel.Info);
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Assert.Equal("WARN", LogLevel.Warn);
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Assert.Equal("ERROR", LogLevel.Error);
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}
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private string ToSnakeCase(string input)
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{
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if (string.IsNullOrEmpty(input)) return input;
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var sb = new StringBuilder();
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for (int i = 0; i < input.Length; i++)
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{
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char c = input[i];
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if (char.IsUpper(c))
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{
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if (i > 0) sb.Append('_');
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sb.Append(char.ToLowerInvariant(c));
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}
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else
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{
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sb.Append(c);
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}
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}
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return sb.ToString();
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}
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}
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}
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