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FileTargetTests.cs
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FileTargetTests.cs
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//
// Copyright (c) 2004-2018 Jaroslaw Kowalski <jaak@jkowalski.net>, Kim Christensen, Julian Verdurmen
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
//
// * Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
//
// * Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// * Neither the name of Jaroslaw Kowalski nor the names of its
// contributors may be used to endorse or promote products derived from this
// software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
// THE POSSIBILITY OF SUCH DAMAGE.
//
namespace NLog.UnitTests.Targets
{
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading;
using Xunit;
using Xunit.Extensions;
using Mocks;
using NLog.Config;
using NLog.Layouts;
using NLog.Targets;
using NLog.Targets.Wrappers;
using Time;
using System.Globalization;
public abstract class FileTargetTests : NLogTestBase
{
private readonly ILogger logger = LogManager.GetLogger("NLog.UnitTests.Targets.FileTargetTests");
public static IEnumerable<object[]> SimpleFileTest_TestParameters
{
get
{
var booleanValues = new[] { true, false };
return
from concurrentWrites in booleanValues
from keepFileOpen in booleanValues
from networkWrites in booleanValues
from forceMutexConcurrentWrites in booleanValues
where UniqueBaseAppender(concurrentWrites, keepFileOpen, networkWrites, forceMutexConcurrentWrites)
from forceManaged in booleanValues
from optimizeBufferReuse in booleanValues
select new object[] { concurrentWrites, keepFileOpen, networkWrites, forceManaged, forceMutexConcurrentWrites, optimizeBufferReuse };
}
}
private static bool UniqueBaseAppender(bool concurrentWrites, bool keepFileOpen, bool networkWrites, bool forceMutexConcurrentWrites)
{
if (!concurrentWrites && !networkWrites && !forceMutexConcurrentWrites)
return true; // Allow keepFileOpen = true / false, Allow forceManaged = true / false
if (concurrentWrites && !networkWrites && keepFileOpen)
return true; // Allow forceManaged = true / false, forceMutexConcurrentWrites = true / false
if (networkWrites && keepFileOpen && !concurrentWrites && !forceMutexConcurrentWrites)
return true; // Allow forceManaged = true / false
return false;
}
[Theory]
[MemberData(nameof(SimpleFileTest_TestParameters))]
public void SimpleFileTest(bool concurrentWrites, bool keepFileOpen, bool networkWrites, bool forceManaged, bool forceMutexConcurrentWrites, bool optimizeBufferReuse)
{
var logFile = Path.GetTempFileName();
try
{
var fileTarget = WrapFileTarget(new FileTarget
{
FileName = SimpleLayout.Escape(logFile),
LineEnding = LineEndingMode.LF,
Layout = "${level} ${message}",
OpenFileCacheTimeout = 0,
ConcurrentWrites = concurrentWrites,
KeepFileOpen = keepFileOpen,
NetworkWrites = networkWrites,
ForceManaged = forceManaged,
ForceMutexConcurrentWrites = forceMutexConcurrentWrites,
OptimizeBufferReuse = optimizeBufferReuse,
});
SimpleConfigurator.ConfigureForTargetLogging(fileTarget, LogLevel.Debug);
logger.Debug("aaa");
logger.Info("bbb");
logger.Warn("ccc");
LogManager.Configuration = null; // Flush
AssertFileContents(logFile, "Debug aaa\nInfo bbb\nWarn ccc\n", Encoding.UTF8);
}
finally
{
if (File.Exists(logFile))
File.Delete(logFile);
}
}
#if !MONO
[Theory]
#else
[Theory(Skip="Not supported on MONO on Travis, because of FileSystemWatcher not working")]
#endif
[MemberData(nameof(SimpleFileTest_TestParameters))]
public void SimpleFileDeleteTest(bool concurrentWrites, bool keepFileOpen, bool networkWrites, bool forceManaged, bool forceMutexConcurrentWrites, bool optimizeBufferReuse)
{
var logFile = Path.GetTempFileName();
var logFile2 = Path.Combine(Path.Combine(Path.GetTempPath(), Guid.NewGuid().ToString()), Path.GetFileName(logFile));
try
{
var fileTarget = WrapFileTarget(new FileTarget
{
FileName = SimpleLayout.Escape(logFile),
LineEnding = LineEndingMode.LF,
Layout = "${level} ${message}",
OpenFileCacheTimeout = 0,
EnableFileDelete = true,
ConcurrentWrites = concurrentWrites,
KeepFileOpen = keepFileOpen,
NetworkWrites = networkWrites,
ForceManaged = forceManaged,
ForceMutexConcurrentWrites = forceMutexConcurrentWrites,
OptimizeBufferReuse = optimizeBufferReuse,
});
SimpleConfigurator.ConfigureForTargetLogging(fileTarget, LogLevel.Debug);
logger.Debug("aaa");
LogManager.Flush();
Directory.CreateDirectory(Path.GetDirectoryName(logFile2));
File.Move(logFile, logFile2);
if (keepFileOpen)
#if MONO
Thread.Sleep(500); // Allow AutoClose-Timer-Thread to react (FileWatcher depends on operating system, fallback to polling every 3 secs)
#else
Thread.Sleep(150); // Allow AutoClose-Timer-Thread to react (FileWatcher schedules timer after 50 msec)
#endif
logger.Info("bbb");
LogManager.Configuration = null;
AssertFileContents(logFile, "Info bbb\n", Encoding.UTF8);
}
finally
{
if (File.Exists(logFile2))
{
File.Delete(logFile2);
Directory.Delete(Path.GetDirectoryName(logFile2));
}
if (File.Exists(logFile))
File.Delete(logFile);
}
}
/// <summary>
/// There was a bug when creating the file in the root.
///
/// Please note that this test can fail because the unit test doesn't have write access in the root.
/// </summary>
[Fact]
public void SimpleFileTestInRoot()
{
if (NLog.Internal.PlatformDetector.IsWin32)
{
var dirPath = "C:\\";
var directoryInfo = new DirectoryInfo(dirPath);
if (directoryInfo.Exists)
{
return;
}
var logFile = dirPath + "nlog-test.log";
SimpleFileWriteLogTest(logFile);
}
}
[Fact]
public void SimpleFileWithSpecialCharsTest()
{
var logFile = Path.Combine(Path.GetTempPath(), "nlog_" + Guid.NewGuid() + "!@#$%^&()_-=+ .log");
SimpleFileWriteLogTest(logFile);
}
private void SimpleFileWriteLogTest(string logFile)
{
try
{
var fileTarget = WrapFileTarget(new FileTarget
{
FileName = SimpleLayout.Escape(logFile),
LineEnding = LineEndingMode.LF,
Layout = "${level} ${message}",
});
SimpleConfigurator.ConfigureForTargetLogging(fileTarget, LogLevel.Debug);
logger.Debug("aaa");
logger.Info("bbb");
logger.Warn("ccc");
LogManager.Configuration = null; // Flush
AssertFileContents(logFile, "Debug aaa\nInfo bbb\nWarn ccc\n", Encoding.UTF8);
}
finally
{
if (File.Exists(logFile))
File.Delete(logFile);
}
}
[Fact]
public void SimpleFileTestWriteBom()
{
var logFile = Path.GetTempFileName();
try
{
var fileTarget = WrapFileTarget(new FileTarget
{
FileName = SimpleLayout.Escape(logFile),
LineEnding = LineEndingMode.LF,
Encoding = Encoding.UTF8,
WriteBom = true,
Layout = "${level} ${message}",
});
SimpleConfigurator.ConfigureForTargetLogging(fileTarget, LogLevel.Debug);
logger.Debug("aaa");
LogManager.Configuration = null; // Flush
AssertFileContents(logFile, "Debug aaa\n", Encoding.UTF8, true);
}
finally
{
if (File.Exists(logFile))
File.Delete(logFile);
}
}
#if !MONO
/// <summary>
/// If a drive doesn't existing, before repeatatly creating a dir was tried. This test was taking +60 seconds
/// </summary>
[Theory]
[MemberData(nameof(SimpleFileTest_TestParameters))]
public void NonExistingDriveShouldNotDelayMuch(bool concurrentWrites, bool keepFileOpen, bool networkWrites, bool forceManaged, bool forceMutexConcurrentWrites, bool optimizeBufferReuse)
{
if (optimizeBufferReuse)
return; // No need to test with buffer optimization enabled, as it is enabled by default
var nonExistingDrive = GetFirstNonExistingDriveWindows();
var logFile = nonExistingDrive + "://dont-extist/no-timeout.log";
DateTime start = DateTime.UtcNow;
try
{
var fileTarget = WrapFileTarget(new FileTarget
{
FileName = logFile,
Layout = "${level} ${message}",
ConcurrentWrites = concurrentWrites,
KeepFileOpen = keepFileOpen,
NetworkWrites = networkWrites,
ForceManaged = forceManaged,
ForceMutexConcurrentWrites = forceMutexConcurrentWrites,
});
SimpleConfigurator.ConfigureForTargetLogging(fileTarget, LogLevel.Debug);
for (int i = 0; i < 300; i++)
{
logger.Debug("aaa");
}
LogManager.Configuration = null; // Flush
Assert.True(DateTime.UtcNow - start < TimeSpan.FromSeconds(5));
}
finally
{
//should not be necessary
if (File.Exists(logFile))
File.Delete(logFile);
}
}
/// <summary>
/// Get first drive letter of non-existing drive
/// </summary>
/// <returns></returns>
private static char GetFirstNonExistingDriveWindows()
{
var existingDrives = new HashSet<string>(Environment.GetLogicalDrives().Select(d => d[0].ToString()),
StringComparer.OrdinalIgnoreCase);
var nonExistingDrive =
"ABCDEFGHIJKLMNOPQRSTUVWXYZ".ToList().First(driveLetter => !existingDrives.Contains(driveLetter.ToString()));
return nonExistingDrive;
}
#endif
[Fact]
public void RollingArchiveEveryMonth()
{
var tempPath = Path.Combine(Path.GetTempPath(), "nlog_" + Guid.NewGuid().ToString());
var defaultTimeSource = TimeSource.Current;
try
{
var timeSource = new TimeSourceTests.ShiftedTimeSource(DateTimeKind.Local);
if (timeSource.Time.Minute == 59)
{
// Avoid double-archive due to overflow of the hour.
timeSource.AddToLocalTime(TimeSpan.FromMinutes(1));
timeSource.AddToSystemTime(TimeSpan.FromMinutes(1));
}
TimeSource.Current = timeSource;
var fileTarget = WrapFileTarget(new FileTarget
{
FileName = Path.Combine(tempPath, "${date:format=dd}_AppName.log"),
LineEnding = LineEndingMode.LF,
Layout = "${message}",
ArchiveNumbering = ArchiveNumberingMode.Rolling,
ArchiveEvery = FileArchivePeriod.Month,
MaxArchiveFiles = 1,
});
SimpleConfigurator.ConfigureForTargetLogging(fileTarget, LogLevel.Debug);
for (int i = 0; i < 12; ++i)
{
for (int j = 0; j < 31; ++j)
{
logger.Debug("aaa");
timeSource.AddToLocalTime(TimeSpan.FromDays(1));
timeSource.AddToSystemTime(TimeSpan.FromDays(1));
}
}
var files = Directory.GetFiles(tempPath);
// Cleanup doesn't work, as all filenames has the same timestamp
if (files.Length < 28 || files.Length > 31)
Assert.Equal(30, files.Length);
foreach (var file in files)
{
Assert.Equal(14, Path.GetFileName(file).Length);
}
}
finally
{
TimeSource.Current = defaultTimeSource;
if (Directory.Exists(tempPath))
Directory.Delete(tempPath, true);
}
}
#if !MONO
[Fact]
#else
[Fact(Skip="Not supported on MONO on Travis, because of File birthtime not working")]
#endif
public void DatedArchiveEveryMonth()
{
if (IsTravis())
{
Console.WriteLine("[SKIP] FileTargetTests.DatedArchiveEveryMonth because we are running in Travis");
return;
}
var tempPath = Path.Combine(Path.GetTempPath(), "nlog_" + Guid.NewGuid().ToString());
try
{
var fileTarget = WrapFileTarget(new FileTarget
{
FileName = Path.Combine(tempPath, "AppName.log"),
LineEnding = LineEndingMode.LF,
Layout = "${message}",
ArchiveNumbering = ArchiveNumberingMode.Date,
ArchiveEvery = FileArchivePeriod.Month,
ArchiveDateFormat = "yyyyMMdd",
MaxArchiveFiles = 2,
});
SimpleConfigurator.ConfigureForTargetLogging(fileTarget, LogLevel.Debug);
logger.Debug("aaa");
// Make the file 2 months old, and lets try again
var files = Directory.GetFiles(tempPath);
Assert.Single(files);
File.SetCreationTime(files[0], DateTime.Now.AddMonths(-2));
var fileTarget2 = WrapFileTarget(new FileTarget
{
FileName = Path.Combine(tempPath, "AppName.log"),
LineEnding = LineEndingMode.LF,
Layout = "${message}",
ArchiveNumbering = ArchiveNumberingMode.Date,
ArchiveEvery = FileArchivePeriod.Month,
ArchiveDateFormat = "yyyyMMdd",
MaxArchiveFiles = 2,
});
SimpleConfigurator.ConfigureForTargetLogging(fileTarget2, LogLevel.Debug);
logger.Debug("bbb");
// Verify the old file has been archived, but using the last-modified-time (And not file-creation-time)
files = Directory.GetFiles(tempPath);
Assert.Equal(2, files.Length);
string dateName = string.Empty;
foreach (var fileName in files)
{
if (string.IsNullOrEmpty(dateName))
{
dateName = Path.GetFileName(fileName);
dateName = dateName.Replace("AppName.", "");
dateName = dateName.Replace(".log", "");
dateName = dateName.Replace("log", "");
}
}
Assert.NotEmpty(dateName);
Assert.Equal(DateTime.Now.Month, DateTime.ParseExact(dateName, "yyyyMMdd", null).Month);
}
finally
{
if (Directory.Exists(tempPath))
Directory.Delete(tempPath, true);
}
}
[Fact]
public void CsvHeaderTest()
{
var tempPath = Path.Combine(Path.GetTempPath(), "nlog_" + Guid.NewGuid().ToString());
var logFile = Path.Combine(tempPath, "log.log");
if (Path.DirectorySeparatorChar == '\\')
logFile = logFile.Replace(Path.DirectorySeparatorChar, Path.AltDirectorySeparatorChar);
try
{
for (var i = 0; i < 2; i++)
{
var layout = new CsvLayout
{
Delimiter = CsvColumnDelimiterMode.Semicolon,
WithHeader = true,
Columns =
{
new CsvColumn("name", "${logger}"),
new CsvColumn("level", "${level}"),
new CsvColumn("message", "${message}"),
}
};
var fileTarget = WrapFileTarget(new FileTarget
{
FileName = SimpleLayout.Escape(logFile),
LineEnding = LineEndingMode.LF,
Layout = layout,
OpenFileCacheTimeout = 0,
ReplaceFileContentsOnEachWrite = false,
ArchiveAboveSize = 120, // Only 2 LogEvents per file
MaxArchiveFiles = 1,
});
SimpleConfigurator.ConfigureForTargetLogging(fileTarget, LogLevel.Debug);
if (i == 0)
{
for (int j = 0; j < 3; j++)
logger.Debug("aaa");
LogManager.Configuration = null; // Flush
// See that the 3rd LogEvent was placed in its own file
AssertFileContents(logFile, "name;level;message\nNLog.UnitTests.Targets.FileTargetTests;Debug;aaa\n", Encoding.UTF8);
}
else
{
logger.Debug("aaa");
}
}
// See that opening closing
AssertFileContents(logFile, "name;level;message\nNLog.UnitTests.Targets.FileTargetTests;Debug;aaa\nNLog.UnitTests.Targets.FileTargetTests;Debug;aaa\n", Encoding.UTF8);
Assert.NotEqual(3, Directory.GetFiles(tempPath).Count()); // See that archive cleanup worked
}
finally
{
if (File.Exists(logFile))
File.Delete(logFile);
if (Directory.Exists(tempPath))
Directory.Delete(tempPath, true);
}
}
[Fact]
public void DeleteFileOnStartTest()
{
var logFile = Path.GetTempFileName();
try
{
var fileTarget = WrapFileTarget(new FileTarget
{
DeleteOldFileOnStartup = false,
FileName = SimpleLayout.Escape(logFile),
LineEnding = LineEndingMode.LF,
Layout = "${level} ${message}"
});
SimpleConfigurator.ConfigureForTargetLogging(fileTarget, LogLevel.Debug);
logger.Debug("aaa");
logger.Info("bbb");
logger.Warn("ccc");
LogManager.Configuration = null;
AssertFileContents(logFile, "Debug aaa\nInfo bbb\nWarn ccc\n", Encoding.UTF8);
// configure again, without
// DeleteOldFileOnStartup
fileTarget = WrapFileTarget(new FileTarget
{
DeleteOldFileOnStartup = false,
FileName = SimpleLayout.Escape(logFile),
LineEnding = LineEndingMode.LF,
Layout = "${level} ${message}"
});
SimpleConfigurator.ConfigureForTargetLogging(fileTarget, LogLevel.Debug);
logger.Debug("aaa");
logger.Info("bbb");
logger.Warn("ccc");
LogManager.Configuration = null;
AssertFileContents(logFile, "Debug aaa\nInfo bbb\nWarn ccc\nDebug aaa\nInfo bbb\nWarn ccc\n", Encoding.UTF8);
// configure again, this time with
// DeleteOldFileOnStartup
fileTarget = WrapFileTarget(new FileTarget
{
FileName = SimpleLayout.Escape(logFile),
LineEnding = LineEndingMode.LF,
Layout = "${level} ${message}",
DeleteOldFileOnStartup = true
});
SimpleConfigurator.ConfigureForTargetLogging(fileTarget, LogLevel.Debug);
logger.Debug("aaa");
logger.Info("bbb");
logger.Warn("ccc");
LogManager.Configuration = null; // Flush
AssertFileContents(logFile, "Debug aaa\nInfo bbb\nWarn ccc\n", Encoding.UTF8);
}
finally
{
if (File.Exists(logFile))
File.Delete(logFile);
}
}
/// <summary>
/// todo not needed to execute twice.
/// </summary>
[Fact]
public void DeleteFileOnStartTest_noExceptionWhenMissing()
{
LogManager.Configuration = CreateConfigurationFromString(@"<nlog throwExceptions='true'>
<targets>
<target name='file1' encoding='UTF-8' type='File' deleteOldFileOnStartup='true' fileName='c://temp2/logs/i-dont-exist.log' layout='${message} ' />
</targets>
<rules>
<logger name='*' minlevel='Trace' writeTo='file1' />
</rules>
</nlog>
");
var logger = LogManager.GetCurrentClassLogger();
logger.Trace("running test");
}
#if !NETSTANDARD
public static IEnumerable<object[]> ArchiveFileOnStartTests_TestParameters
{
get
{
var booleanValues = new[] { true, false };
return
from enableCompression in booleanValues
from customFileCompressor in booleanValues
select new object[] { enableCompression, customFileCompressor };
}
}
#else
public static IEnumerable<object[]> ArchiveFileOnStartTests_TestParameters
{
get
{
var booleanValues = new[] { true, false };
return
from enableCompression in booleanValues
select new object[] { enableCompression, false };
}
}
#endif
[Theory]
[MemberData(nameof(ArchiveFileOnStartTests_TestParameters))]
public void ArchiveFileOnStartTests(bool enableCompression, bool customFileCompressor)
{
var logFile = Path.GetTempFileName();
var tempArchiveFolder = Path.Combine(Path.GetTempPath(), "Archive");
var archiveExtension = enableCompression ? "zip" : "txt";
IFileCompressor fileCompressor = null;
try
{
if (customFileCompressor)
{
fileCompressor = FileTarget.FileCompressor;
FileTarget.FileCompressor = new CustomFileCompressor();
}
// Configure first time with ArchiveOldFileOnStartup = false.
var fileTarget = WrapFileTarget(new FileTarget
{
ArchiveOldFileOnStartup = false,
FileName = SimpleLayout.Escape(logFile),
LineEnding = LineEndingMode.LF,
Layout = "${level} ${message}"
});
SimpleConfigurator.ConfigureForTargetLogging(fileTarget, LogLevel.Debug);
logger.Debug("aaa");
logger.Info("bbb");
logger.Warn("ccc");
LogManager.Configuration = null;
AssertFileContents(logFile, "Debug aaa\nInfo bbb\nWarn ccc\n", Encoding.UTF8);
// Configure second time with ArchiveOldFileOnStartup = false again.
// Expected behavior: Extra content to be appended to the file.
fileTarget = WrapFileTarget(new FileTarget
{
ArchiveOldFileOnStartup = false,
FileName = SimpleLayout.Escape(logFile),
LineEnding = LineEndingMode.LF,
Layout = "${level} ${message}"
});
SimpleConfigurator.ConfigureForTargetLogging(fileTarget, LogLevel.Debug);
logger.Debug("aaa");
logger.Info("bbb");
logger.Warn("ccc");
LogManager.Configuration = null; // Flush
AssertFileContents(logFile, "Debug aaa\nInfo bbb\nWarn ccc\nDebug aaa\nInfo bbb\nWarn ccc\n", Encoding.UTF8);
// Configure third time with ArchiveOldFileOnStartup = true again.
// Expected behavior: Extra content will be stored in a new file; the
// old content should be moved into a new location.
var archiveTempName = Path.Combine(tempArchiveFolder, "archive." + archiveExtension);
FileTarget ft;
fileTarget = WrapFileTarget(ft = new FileTarget
{
EnableArchiveFileCompression = enableCompression,
FileName = SimpleLayout.Escape(logFile),
LineEnding = LineEndingMode.LF,
Layout = "${level} ${message}",
ArchiveOldFileOnStartup = true,
ArchiveFileName = archiveTempName,
ArchiveNumbering = ArchiveNumberingMode.Sequence,
MaxArchiveFiles = 1
});
SimpleConfigurator.ConfigureForTargetLogging(fileTarget, LogLevel.Debug);
logger.Debug("ddd");
logger.Info("eee");
logger.Warn("fff");
LogManager.Configuration = null; // Flush
AssertFileContents(logFile, "Debug ddd\nInfo eee\nWarn fff\n", Encoding.UTF8);
Assert.True(File.Exists(archiveTempName));
var assertFileContents = ft.EnableArchiveFileCompression ?
new Action<string, string, Encoding>(AssertZipFileContents) :
AssertFileContents;
assertFileContents(archiveTempName, "Debug aaa\nInfo bbb\nWarn ccc\nDebug aaa\nInfo bbb\nWarn ccc\n",
Encoding.UTF8);
}
finally
{
if (customFileCompressor)
FileTarget.FileCompressor = fileCompressor;
if (File.Exists(logFile))
File.Delete(logFile);
if (Directory.Exists(tempArchiveFolder))
Directory.Delete(tempArchiveFolder, true);
}
}
public static IEnumerable<object[]> ReplaceFileContentsOnEachWriteTest_TestParameters
{
get
{
bool[] boolValues = new[] { false, true };
return
from useHeader in boolValues
from useFooter in boolValues
select new object[] { useHeader, useFooter };
}
}
[Theory]
[MemberData(nameof(ReplaceFileContentsOnEachWriteTest_TestParameters))]
public void ReplaceFileContentsOnEachWriteTest(bool useHeader, bool useFooter)
{
const string header = "Headerline", footer = "Footerline";
var logFile = Path.GetTempFileName();
try
{
var innerFileTarget = new FileTarget
{
DeleteOldFileOnStartup = false,
FileName = SimpleLayout.Escape(logFile),
ReplaceFileContentsOnEachWrite = true,
LineEnding = LineEndingMode.LF,
Layout = "${level} ${message}"
};
if (useHeader)
innerFileTarget.Header = header;
if (useFooter)
innerFileTarget.Footer = footer;
var fileTarget = WrapFileTarget(innerFileTarget);
SimpleConfigurator.ConfigureForTargetLogging(fileTarget, LogLevel.Debug);
string headerPart = useHeader ? header + LineEndingMode.LF.NewLineCharacters : string.Empty;
string footerPart = useFooter ? footer + LineEndingMode.LF.NewLineCharacters : string.Empty;
logger.Debug("aaa");
LogManager.Flush();
AssertFileContents(logFile, headerPart + "Debug aaa\n" + footerPart, Encoding.UTF8);
logger.Info("bbb");
LogManager.Flush();
AssertFileContents(logFile, headerPart + "Info bbb\n" + footerPart, Encoding.UTF8);
logger.Warn("ccc");
LogManager.Flush();
AssertFileContents(logFile, headerPart + "Warn ccc\n" + footerPart, Encoding.UTF8);
}
finally
{
if (File.Exists(logFile))
File.Delete(logFile);
}
}
[Theory]
[InlineData(true)]
[InlineData(false)]
public void ReplaceFileContentsOnEachWrite_CreateDirs(bool createDirs)
{
LogManager.ThrowExceptions = false;
var tempPath = Path.Combine(Path.GetTempPath(), "dir_" + Guid.NewGuid().ToString());
var logfile = Path.Combine(tempPath, "log.log");
try
{
var target = new FileTarget
{
FileName = logfile,
ReplaceFileContentsOnEachWrite = true,
CreateDirs = createDirs
};
var config = new LoggingConfiguration();
config.AddTarget("logfile", target);
config.AddRuleForAllLevels(target);
LogManager.Configuration = config;
ILogger logger = LogManager.GetLogger("A");
logger.Info("a");
Assert.Equal(createDirs, Directory.Exists(tempPath));
}
finally
{
if (File.Exists(logfile))
File.Delete(logfile);
if (Directory.Exists(tempPath))
Directory.Delete(tempPath, true);
}
}
[Fact]
public void CreateDirsTest()
{
var tempPath = Path.Combine(Path.GetTempPath(), Guid.NewGuid().ToString());
var logFile = Path.Combine(tempPath, "file.txt");
try
{
var fileTarget = WrapFileTarget(new FileTarget
{
FileName = logFile,
LineEnding = LineEndingMode.LF,
Layout = "${level} ${message}"
});
SimpleConfigurator.ConfigureForTargetLogging(fileTarget, LogLevel.Debug);
logger.Debug("aaa");
logger.Info("bbb");
logger.Warn("ccc");
LogManager.Configuration = null; // Flush
AssertFileContents(logFile, "Debug aaa\nInfo bbb\nWarn ccc\n", Encoding.UTF8);
}
finally
{
LogManager.Configuration = null;
if (File.Exists(logFile))
File.Delete(logFile);
if (Directory.Exists(tempPath))
Directory.Delete(tempPath, true);
}
}
[Theory]
[InlineData(true, 0)]
[InlineData(false, 0)]
[InlineData(false, 1)]
public void AutoFlushTest(bool autoFlush, int autoFlushTimeout)
{
var tempPath = Path.Combine(Path.GetTempPath(), Guid.NewGuid().ToString());
var logFile = Path.Combine(tempPath, "file.txt");
try
{
var fileTarget = WrapFileTarget(new FileTarget
{
FileName = logFile,
LineEnding = LineEndingMode.LF,
Layout = "${level} ${message}",
KeepFileOpen = true,
ConcurrentWrites = false,
AutoFlush = autoFlush,
OpenFileFlushTimeout = autoFlushTimeout,
});
SimpleConfigurator.ConfigureForTargetLogging(fileTarget, LogLevel.Debug);
logger.Debug("aaa");
logger.Info("bbb");
logger.Warn("ccc");
if (autoFlush)
{
AssertFileContents(logFile, "Debug aaa\nInfo bbb\nWarn ccc\n", Encoding.UTF8);
}
else
{
AssertFileContents(logFile, string.Empty, Encoding.UTF8);
if (autoFlushTimeout > 0)
{
Thread.Sleep(TimeSpan.FromSeconds(autoFlushTimeout * 1.5));
AssertFileContents(logFile, "Debug aaa\nInfo bbb\nWarn ccc\n", Encoding.UTF8);
}
}
LogManager.Configuration = null; // Flush
AssertFileContents(logFile, "Debug aaa\nInfo bbb\nWarn ccc\n", Encoding.UTF8);
}
finally
{
LogManager.Configuration = null;
if (File.Exists(logFile))
File.Delete(logFile);
if (Directory.Exists(tempPath))
Directory.Delete(tempPath, true);
}
}
[Fact]
public void SequentialArchiveTest()
{
var tempPath = Path.Combine(Path.GetTempPath(), Guid.NewGuid().ToString());
var logFile = Path.Combine(tempPath, "file.txt");
try
{
string archiveFolder = Path.Combine(tempPath, "archive");
var fileTarget = WrapFileTarget(new FileTarget
{
FileName = logFile,
ArchiveFileName = Path.Combine(archiveFolder, "{####}.txt"),
ArchiveAboveSize = 100,
LineEnding = LineEndingMode.LF,
Layout = "${message}",
MaxArchiveFiles = 3,
ArchiveNumbering = ArchiveNumberingMode.Sequence
});
SimpleConfigurator.ConfigureForTargetLogging(fileTarget, LogLevel.Debug);
// we emit 5 * 25 *(3 x aaa + \n) bytes
// so that we should get a full file + 3 archives
Generate100BytesLog('a');
Generate100BytesLog('b');
Generate100BytesLog('c');
Generate100BytesLog('d');
Generate100BytesLog('e');
LogManager.Configuration = null; // Flush
var times = 25;
AssertFileContents(logFile,
StringRepeat(times, "eee\n"),
Encoding.UTF8);
AssertFileContents(
Path.Combine(archiveFolder, "0001.txt"),
StringRepeat(times, "bbb\n"),
Encoding.UTF8);
AssertFileContents(
Path.Combine(archiveFolder, "0002.txt"),
StringRepeat(times, "ccc\n"),
Encoding.UTF8);
AssertFileContents(
Path.Combine(archiveFolder, "0003.txt"),
StringRepeat(times, "ddd\n"),
Encoding.UTF8);
//0000 should not extists because of MaxArchiveFiles=3
Assert.True(!File.Exists(Path.Combine(archiveFolder, "0000.txt")));
Assert.True(!File.Exists(Path.Combine(archiveFolder, "0004.txt")));
}
finally
{
if (File.Exists(logFile))
File.Delete(logFile);
if (Directory.Exists(tempPath))
Directory.Delete(tempPath, true);
}
}