public void WriterKeepsTally()
{
using (RollingFlatFileTraceListener traceListener
= new RollingFlatFileTraceListener(fileName, "header", "footer", null, 10, "yyyy", RollFileExistsBehavior.Overwrite, RollInterval.Day))
{
traceListener.RollingHelper.DateTimeProvider = dateTimeProvider;
Assert.IsTrue(traceListener.RollingHelper.UpdateRollingInformationIfNecessary());
traceListener.Write("12345");
Assert.AreEqual(5L, ((RollingFlatFileTraceListener.TallyKeepingFileStreamWriter)traceListener.Writer).Tally);
}
}
public void RolledFileWillHaveCurrentDateForTimestamp()
{
using (RollingFlatFileTraceListener traceListener
= new RollingFlatFileTraceListener(fileName, "header", "footer", null,
10, "yyyy", RollFileExistsBehavior.Overwrite, RollInterval.Day))
{
traceListener.RollingHelper.DateTimeProvider = dateTimeProvider;
traceListener.Write("1234567890");
Assert.IsTrue(traceListener.RollingHelper.UpdateRollingInformationIfNecessary());
traceListener.RollingHelper.PerformRoll(new DateTime(2007, 01, 01));
traceListener.Write("12345");
Assert.AreEqual(5L, ((RollingFlatFileTraceListener.TallyKeepingFileStreamWriter)traceListener.Writer).Tally);
}
Assert.IsTrue(File.Exists(fileName));
Assert.AreEqual("12345", File.ReadAllText(fileName));
Assert.IsTrue(File.Exists(fileNameWithoutExtension + ".2007" + extension));
Assert.AreEqual("1234567890", File.ReadAllText(fileNameWithoutExtension + ".2007" + extension));
}
public void WillRollForSize()
{
using (RollingFlatFileTraceListener traceListener
= new RollingFlatFileTraceListener(fileName, "header", "footer", null,
1, "yyyy", RollFileExistsBehavior.Increment, RollInterval.Year))
{
traceListener.RollingHelper.UpdateRollingInformationIfNecessary();
traceListener.Write(new string('c', 1200));
Assert.IsNotNull(traceListener.RollingHelper.CheckIsRollNecessary());
}
using (RollingFlatFileTraceListener traceListener
= new RollingFlatFileTraceListener(fileName, "header", "footer", null,
0, "yyyy", RollFileExistsBehavior.Increment, RollInterval.Year))
{
traceListener.RollingHelper.UpdateRollingInformationIfNecessary();
traceListener.Write(new string('c', 1200));
Assert.IsNull(traceListener.RollingHelper.CheckIsRollNecessary());
}
}
public void RolledFileWithIncrementWillCreateArchiveFileWithMaxSequenceIfDateTemplateDoesMatch()
{
using (RollingFlatFileTraceListener traceListener
= new RollingFlatFileTraceListener(fileName, "header", "footer", null,
0, "yyyy", RollFileExistsBehavior.Increment, RollInterval.Day))
{
traceListener.RollingHelper.DateTimeProvider = dateTimeProvider;
traceListener.Write("1234567890");
Assert.IsTrue(traceListener.RollingHelper.UpdateRollingInformationIfNecessary());
traceListener.RollingHelper.PerformRoll(new DateTime(2007, 01, 01));
traceListener.Write("12345");
Assert.IsTrue(traceListener.RollingHelper.UpdateRollingInformationIfNecessary());
traceListener.RollingHelper.PerformRoll(new DateTime(2007, 01, 02));
traceListener.Write("abcde");
}
Assert.IsTrue(File.Exists(fileName));
Assert.AreEqual("abcde", File.ReadAllText(fileName));
Assert.IsTrue(File.Exists(fileNameWithoutExtension + ".2007.2" + extension));
Assert.AreEqual("12345", File.ReadAllText(fileNameWithoutExtension + ".2007.2" + extension));
Assert.IsTrue(File.Exists(fileNameWithoutExtension + ".2007.1" + extension));
Assert.AreEqual("1234567890", File.ReadAllText(fileNameWithoutExtension + ".2007.1" + extension));
string[] archiveFiles = Directory.GetFiles(".", fileNameWithoutExtension + ".2007*" + extension + "*");
Assert.AreEqual(2, archiveFiles.Length);
}
public void RolledFileWithOverwriteWillFallBackToUniqueNameIfDateTemplateMatchesButArchiveFileIsInUse()
{
string targetArchiveFile = fileNameWithoutExtension + ".2007" + extension;
using (FileStream stream = File.Open(targetArchiveFile, FileMode.CreateNew, FileAccess.Write, FileShare.Read))
{
using (RollingFlatFileTraceListener traceListener
= new RollingFlatFileTraceListener(fileName, "header", "footer", null,
0, "yyyy", RollFileExistsBehavior.Overwrite, RollInterval.Day))
{
traceListener.RollingHelper.DateTimeProvider = dateTimeProvider;
traceListener.Write("1234567890");
Assert.IsTrue(traceListener.RollingHelper.UpdateRollingInformationIfNecessary());
traceListener.RollingHelper.PerformRoll(new DateTime(2007, 01, 01));
traceListener.Write("12345");
}
}
Assert.IsTrue(File.Exists(fileName));
Assert.AreEqual("12345", File.ReadAllText(fileName));
Assert.IsTrue(File.Exists(targetArchiveFile));
Assert.AreEqual("", File.ReadAllText(targetArchiveFile)); // couldn't archive
string[] archiveFiles = Directory.GetFiles(".", targetArchiveFile + "*");
Assert.AreEqual(2, archiveFiles.Length);
foreach (string archiveFile in archiveFiles)
{
if (!Path.GetFileName(archiveFile).Equals(targetArchiveFile))
{
Assert.AreEqual("1234567890", File.ReadAllText(archiveFile));
}
}
}
public void FallbackFileNameIsUsedForRoll()
{
using (FileStream fileStream = File.Open(fileName, FileMode.CreateNew, FileAccess.Write, FileShare.Read))
{
using (RollingFlatFileTraceListener traceListener
= new RollingFlatFileTraceListener(fileName, "header", "footer", null,
10, "yyyy", RollFileExistsBehavior.Overwrite, RollInterval.Day))
{
traceListener.RollingHelper.DateTimeProvider = dateTimeProvider;
traceListener.Write("1234567890");
Assert.IsTrue(traceListener.RollingHelper.UpdateRollingInformationIfNecessary());
traceListener.RollingHelper.PerformRoll(new DateTime(2007, 01, 01));
traceListener.Write("12345");
Assert.AreEqual(5L, ((RollingFlatFileTraceListener.TallyKeepingFileStreamWriter)traceListener.Writer).Tally);
}
}
}
public void RolledFileWithOverwriteAndCapWillCreateArchiveFileIfDateTemplateDoesNotMatchAndKeepTheNewest()
{
using (RollingFlatFileTraceListener traceListener
= new RollingFlatFileTraceListener(
fileName,
"header",
"footer",
null,
0,
"yyyy",
RollFileExistsBehavior.Overwrite,
RollInterval.Day,
1))
{
traceListener.RollingHelper.DateTimeProvider = dateTimeProvider;
traceListener.Write("1234567890");
Assert.IsTrue(traceListener.RollingHelper.UpdateRollingInformationIfNecessary());
traceListener.RollingHelper.PerformRoll(new DateTime(2007, 01, 01));
traceListener.Write("12345");
Assert.IsTrue(traceListener.RollingHelper.UpdateRollingInformationIfNecessary());
traceListener.RollingHelper.PerformRoll(new DateTime(2008, 01, 01));
traceListener.Write("abcde");
Assert.IsTrue(traceListener.RollingHelper.UpdateRollingInformationIfNecessary());
traceListener.RollingHelper.PerformRoll(new DateTime(2009, 01, 01));
traceListener.Write("edcbe");
}
Assert.IsTrue(File.Exists(fileName));
Assert.AreEqual("edcbe", File.ReadAllText(fileName));
Assert.IsTrue(File.Exists(fileNameWithoutExtension + ".2009" + extension));
Assert.AreEqual("abcde", File.ReadAllText(fileNameWithoutExtension + ".2009" + extension));
Assert.IsFalse(File.Exists(fileNameWithoutExtension + ".2008" + extension));
Assert.IsFalse(File.Exists(fileNameWithoutExtension + ".2007" + extension));
}