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gdziadkiewiczgdziadkiewicz
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Add draft of tests for file rolling regression
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‎src/log4net.Tests/Integration/Log4NetIntegrationTests.cs

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using System;
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using System.IO;
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using System.Linq;
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using log4net;
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using log4net.Config;
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using NUnit.Framework;
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namespace log4net.Tests.Integration
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{
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[TestFixture]
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public class Log4NetIntegrationTests
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{
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[SetUp]
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public void SetUp()
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{
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var filesFromPreviousRuns =
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Directory.EnumerateFiles(TestContext.CurrentContext.TestDirectory)
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.Where(filePath => Path.GetFileName(filePath).StartsWith("integrationTestLogFile", StringComparison.InvariantCultureIgnoreCase))
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.ToList();
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filesFromPreviousRuns.ForEach(File.Delete);
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var directoriesFromPreviousRuns =
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Directory.EnumerateDirectories(TestContext.CurrentContext.TestDirectory)
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.Where(dirPath => Path.GetDirectoryName(dirPath)?.StartsWith("integrationTestLogDir", StringComparison.InvariantCultureIgnoreCase) == true)
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.ToList();
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directoriesFromPreviousRuns.ForEach(d => Directory.Delete(d, true));
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}
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[Test]
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public void Log4Net_WritesLogFile_AndContentIsCorrect()
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{
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// Arrange: configure log4net from config file
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var config = "log4net.integration.basic.config";
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string configPath = Path.Combine(TestContext.CurrentContext.TestDirectory, "Integration", config);
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var repo = LogManager.CreateRepository(Guid.NewGuid().ToString());
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XmlConfigurator.Configure(repo, new FileInfo(configPath));
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// Act: log
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var log = LogManager.GetLogger(repo.Name, "IntegrationTestLogger");
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log.Info("Hello integration test");
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log.Error("This is an error");
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repo.Shutdown();
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// Assert: log file exists and contains expected content
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string[] logLines = File.ReadAllLines("integrationTestLogFile_integration.log");
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Assert.That(logLines.Length, Is.EqualTo(2));
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Assert.That(logLines[0], Does.Contain("Hello integration test"));
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Assert.That(logLines[1], Does.Contain("This is an error"));
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}
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[Test]
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public void Log4Net_WritesLogFile_AndContentIsCorrectAfterRestart()
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{
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for (int i = 0; i < 10; i++)
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{
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// Arrange: configure log4net from config file
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var config = "log4net.integration.basic.config";
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string configPath = Path.Combine(TestContext.CurrentContext.TestDirectory, "Integration", config);
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var repo = LogManager.CreateRepository(Guid.NewGuid().ToString());
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XmlConfigurator.Configure(repo, new FileInfo(configPath));
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// Act: log
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var log = LogManager.GetLogger(repo.Name, "IntegrationTestLogger");
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log.Info("Hello integration test");
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log.Error("This is an error");
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repo.Shutdown();
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}
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// Assert: log file exists and contains expected content
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string[] logLines = File.ReadAllLines("integrationTestLogFile_integration.log");
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Assert.That(logLines.Length, Is.EqualTo(20));
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for (int i = 0; i < 10; i++)
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{
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Assert.That(logLines[i * 2], Does.Contain("Hello integration test"));
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Assert.That(logLines[i * 2 + 1], Does.Contain("This is an error"));
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}
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}
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[Test]
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public void Log4Net_WritesLogFile_WithRollAndNoAppend_AndContentIsCorrectAfterRestart()
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{
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for (int i = 0; i < 10; i++)
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{
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// Arrange: configure log4net from config file
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var config = "log4net.roll.config.xml";
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string configPath = Path.Combine(TestContext.CurrentContext.TestDirectory, "Integration", config);
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var repo = LogManager.CreateRepository(Guid.NewGuid().ToString());
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XmlConfigurator.Configure(repo, new FileInfo(configPath));
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// Act: log
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var log = LogManager.GetLogger(repo.Name, "log");
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for (int j = 0; j < 10; ++j)
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{
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log.Info($"Hello, log4net! {i} {j}");
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}
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repo.Shutdown();
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}
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// Assert: log file exists and contains expected content
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string[] logFiles = Directory.GetFiles("integrationTestLogDir_1");
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Assert.That(logFiles.Length, Is.EqualTo(10));
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}
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}
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}

‎src/log4net.Tests/Integration/log4net.integration.basic.config

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<?xml version="1.0" encoding="utf-8" ?>
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<log4net>
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<appender name="FileAppender" type="log4net.Appender.FileAppender,log4net">
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<file value="integrationTestLogFile_integration.log" />
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<appendToFile value="true" />
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<layout type="log4net.Layout.PatternLayout">
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<conversionPattern value="%date [%thread] %-5level %logger - %message%newline" />
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</layout>
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</appender>
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<root>
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<level value="DEBUG" />
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<appender-ref ref="FileAppender" />
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</root>
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</log4net>

‎src/log4net.Tests/Integration/log4net.roll.config.xml

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<?xml version="1.0" encoding="utf-8" ?>
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<configuration>
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<log4net>
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<appender name="Log"
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type="log4net.Appender.RollingFileAppender">
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<file type="log4net.Util.PatternString">
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<conversionPattern value="integrationTestLogDir_1\\Logging.log"/>
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</file>
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<param name="StaticLogFileName" value="true"/>
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<param name="AppendToFile" value="false"/>
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<rollingStyle value="Size"/>
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<maximumFileSize value="1MB"/>
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<maxSizeRollBackups value="100"/>
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<CountDirection value="1"/>
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<preserveLogFileNameExtension value="true"/>
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<lockingModel type="log4net.Appender.FileAppender+MinimalLock"/>
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<layout type="log4net.Layout.PatternLayout">
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<param name="ConversionPattern"
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value="%date [%3thread] %-5level %logger{1} %-20message %n"/>
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</layout>
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</appender>
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<logger name="log">
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<level value="debug" />
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<appender-ref ref="Log" />
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</logger>
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</log4net>
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</configuration>

‎src/log4net.Tests/log4net.Tests.csproj

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<ItemGroup Condition="'$(TargetFramework)'=='net8.0'">
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<PackageReference Include="Microsoft.NET.Test.Sdk" Version="$(MicrosoftNetTestSdkPackageVersion)" />
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</ItemGroup>
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<ItemGroup>
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<None Update="Integration\log4net.roll.config.xml">
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<CopyToOutputDirectory>Always</CopyToOutputDirectory>
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</None>
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<None Update="Integration\log4net.integration.basic.config">
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<CopyToOutputDirectory>Always</CopyToOutputDirectory>
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</None>
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</ItemGroup>
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<Import Project="../MonoForFramework.targets" />
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</Project>

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