Lidarr/NzbDrone.Core.Test/Framework/ExceptionVerification.cs

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// ReSharper disable RedundantUsingDirective
using System;
using System.Collections.Generic;
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using System.Linq;
using NLog;
using NLog.Targets;
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using NUnit.Framework;
namespace NzbDrone.Core.Test.Framework
{
public class ExceptionVerification : Target
{
private static List<LogEventInfo> _logs = new List<LogEventInfo>();
protected override void Write(LogEventInfo logEvent)
{
if (logEvent.Level >= LogLevel.Warn)
{
_logs.Add(logEvent);
}
}
internal static void Reset()
{
_logs = new List<LogEventInfo>();
}
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internal static void AssertNoUnexcpectedLogs()
{
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ExcpectedFatals(0);
ExcpectedErrors(0);
ExcpectedWarns(0);
}
private static string GetLogsString(IEnumerable<LogEventInfo> logs)
{
string errors = "";
foreach (var log in logs)
{
string exception = "";
if (log.Exception != null)
{
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exception = log.Exception.Message;
}
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errors += Environment.NewLine + String.Format("[{0}] {1}: {2} [{3}]", log.Level, log.LoggerName, log.FormattedMessage, exception);
}
return errors;
}
internal static void ExcpectedErrors(int count)
{
Excpected(LogLevel.Error, count);
}
internal static void ExcpectedFatals(int count)
{
Excpected(LogLevel.Fatal, count);
}
internal static void ExcpectedWarns(int count)
{
Excpected(LogLevel.Warn, count);
}
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internal static void IgnoreWarns()
{
Ignore(LogLevel.Warn);
}
internal static void IgnoreErrors()
{
Ignore(LogLevel.Error);
}
internal static void MarkInconclusive(Type exception)
{
var inconclusiveLogs = _logs.Where(l => l.Exception.GetType() == exception).ToList();
if (inconclusiveLogs.Count != 0)
{
inconclusiveLogs.ForEach(c => _logs.Remove(c));
Assert.Inconclusive(GetLogsString(inconclusiveLogs));
}
}
private static void Excpected(LogLevel level, int count)
{
var levelLogs = _logs.Where(l => l.Level == level).ToList();
if (levelLogs.Count != count)
{
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var message = String.Format("{0} {1}(s) were expected but {2} were logged.\n\r{3}",
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count, level, levelLogs.Count, GetLogsString(levelLogs));
message = "********************************************************************************************************************************\n\r"
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+ message +
"\n\r********************************************************************************************************************************";
Assert.Fail(message);
}
levelLogs.ForEach(c => _logs.Remove(c));
}
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private static void Ignore(LogLevel level)
{
var levelLogs = _logs.Where(l => l.Level == level).ToList();
levelLogs.ForEach(c => _logs.Remove(c));
}
}
}