public void testShiftBuffers1()
{
int linesPerFile = 10;
MultiFileOptions options = new MultiFileOptions();
options.MaxDayTry = 0;
options.FormatPattern = "*$J(.)";
LinkedList <string> files = CreateTestfilesWithoutDate();
EncodingOptions encodingOptions = new EncodingOptions();
encodingOptions.Encoding = Encoding.Default;
LogfileReader reader = new LogfileReader(files.Last.Value, encodingOptions, true, 40, 50, options);
reader.ReadFiles();
IList <ILogFileInfo> lil = reader.GetLogFileInfoList();
Assert.AreEqual(files.Count, lil.Count);
LinkedList <string> .Enumerator enumerator = files.GetEnumerator();
enumerator.MoveNext();
foreach (LogFileInfo li in lil)
{
string fileName = enumerator.Current;
Assert.AreEqual(fileName, li.FullName);
enumerator.MoveNext();
}
int oldCount = lil.Count;
// Simulate rollover
//
files = RolloverSimulation(files, "*$J(.)", false);
// Simulate rollover detection
//
reader.ShiftBuffers();
lil = reader.GetLogFileInfoList();
Assert.AreEqual(oldCount + 1, lil.Count);
Assert.AreEqual(linesPerFile * lil.Count, reader.LineCount);
// Check if rollover'd file names have been handled by LogfileReader
//
Assert.AreEqual(files.Count, lil.Count);
enumerator = files.GetEnumerator();
enumerator.MoveNext();
foreach (LogFileInfo li in lil)
{
string fileName = enumerator.Current;
Assert.AreEqual(fileName, li.FullName);
enumerator.MoveNext();
}
// Check if file buffers have correct files. Assuming here that one buffer fits for a
// complete file
//
enumerator = files.GetEnumerator();
enumerator.MoveNext();
IList <LogBuffer> logBuffers = reader.GetBufferList();
int startLine = 0;
foreach (LogBuffer logBuffer in logBuffers)
{
Assert.AreEqual(logBuffer.FileInfo.FullName, enumerator.Current);
Assert.AreEqual(startLine, logBuffer.StartLine);
startLine += 10;
enumerator.MoveNext();
}
// Checking file content
//
enumerator = files.GetEnumerator();
enumerator.MoveNext();
enumerator.MoveNext(); // move to 2nd entry. The first file now contains 2nd file's content (because rollover)
logBuffers = reader.GetBufferList();
int i;
for (i = 0; i < logBuffers.Count - 2; ++i)
{
LogBuffer logBuffer = logBuffers[i];
ILogLine line = logBuffer.GetLineOfBlock(0);
Assert.IsTrue(line.FullLine.Contains(enumerator.Current));
enumerator.MoveNext();
}
enumerator.MoveNext();
// the last 2 files now contain the content of the previously watched file
for (; i < logBuffers.Count; ++i)
{
LogBuffer logBuffer = logBuffers[i];
ILogLine line = logBuffer.GetLineOfBlock(0);
Assert.IsTrue(line.FullLine.Contains(enumerator.Current));
}
oldCount = lil.Count;
// Simulate rollover again - now latest file will be deleted (simulates logger's rollover history limit)
//
files = RolloverSimulation(files, "*$J(.)", true);
// Simulate rollover detection
//
reader.ShiftBuffers();
lil = reader.GetLogFileInfoList();
Assert.AreEqual(oldCount, lil.Count); // same count because oldest file is deleted
Assert.AreEqual(files.Count, lil.Count);
Assert.AreEqual(linesPerFile * lil.Count, reader.LineCount);
// Check first line to see if buffers are correct
//
ILogLine firstLine = reader.GetLogLine(0);
string[] names = new string[files.Count];
files.CopyTo(names, 0);
Assert.IsTrue(firstLine.FullLine.Contains(names[2]));
}