public void FileAppenderCache_Allocate()
{
// Allocate on an Empty FileAppenderCache.
FileAppenderCache emptyCache = FileAppenderCache.Empty;
Assert.Throws <NullReferenceException>(() => emptyCache.AllocateAppender("file.txt"));
// Construct a on non-empty FileAppenderCache.
IFileAppenderFactory appenderFactory = SingleProcessFileAppender.TheFactory;
ICreateFileParameters fileTarget = new FileTarget();
String tempFile = Path.Combine(
Path.GetTempPath(),
Path.Combine(Guid.NewGuid().ToString(), "file.txt")
);
// Allocate an appender.
FileAppenderCache cache = new FileAppenderCache(3, appenderFactory, fileTarget);
BaseFileAppender appender = cache.AllocateAppender(tempFile);
//
// Note: Encoding is ASSUMED to be Unicode. There is no explicit reference to which encoding will be used
// for the file.
//
// Write, flush the content into the file and release the file.
// We need to release the file before invoking AssertFileContents() method.
appender.Write(StringToBytes("NLog test string."));
appender.Flush();
appender.Close();
// Verify the appender has been allocated correctly.
AssertFileContents(tempFile, "NLog test string.", Encoding.Unicode);
}
public void FileAppenderCache_GetFileCharacteristics()
{
// Invoke GetFileCharacteristics() on an Empty FileAppenderCache.
FileAppenderCache emptyCache = FileAppenderCache.Empty;
Assert.Null(emptyCache.GetFileCreationTimeUtc("file.txt", false));
Assert.Null(emptyCache.GetFileLastWriteTimeUtc("file.txt", false));
Assert.Null(emptyCache.GetFileLength("file.txt", false));
IFileAppenderFactory appenderFactory = SingleProcessFileAppender.TheFactory;
ICreateFileParameters fileTarget = new FileTarget()
{
ArchiveNumbering = ArchiveNumberingMode.Date
};
FileAppenderCache cache = new FileAppenderCache(3, appenderFactory, fileTarget);
// Invoke GetFileCharacteristics() on non-empty FileAppenderCache - Before allocating any appenders.
Assert.Null(emptyCache.GetFileCreationTimeUtc("file.txt", false));
Assert.Null(emptyCache.GetFileLastWriteTimeUtc("file.txt", false));
Assert.Null(emptyCache.GetFileLength("file.txt", false));
String tempFile = Path.Combine(
Path.GetTempPath(),
Path.Combine(Guid.NewGuid().ToString(), "file.txt")
);
// Allocate an appender.
BaseFileAppender appender = cache.AllocateAppender(tempFile);
appender.Write(StringToBytes("NLog test string."));
//
// Note: Encoding is ASSUMED to be Unicode. There is no explicit reference to which encoding will be used
// for the file.
//
// File information should be returned.
var fileCreationTimeUtc = cache.GetFileCreationTimeUtc(tempFile, false);
Assert.NotNull(fileCreationTimeUtc);
Assert.True(fileCreationTimeUtc > DateTime.UtcNow.AddMinutes(-2), "creationtime is wrong");
var fileLastWriteTimeUtc = cache.GetFileLastWriteTimeUtc(tempFile, false);
Assert.NotNull(fileLastWriteTimeUtc);
Assert.True(fileLastWriteTimeUtc > DateTime.UtcNow.AddMinutes(-2), "lastwrite is wrong");
Assert.Equal(34, cache.GetFileLength(tempFile, false));
// Clean up.
appender.Flush();
appender.Close();
}
public void FileAppenderCache_CloseAppenders()
{
// Invoke CloseAppenders() on an Empty FileAppenderCache.
FileAppenderCache emptyCache = FileAppenderCache.Empty;
emptyCache.CloseAppenders();
IFileAppenderFactory appenderFactory = SingleProcessFileAppender.TheFactory;
ICreateFileParameters fileTarget = new FileTarget();
FileAppenderCache cache = new FileAppenderCache(3, appenderFactory, fileTarget);
// Invoke CloseAppenders() on non-empty FileAppenderCache - Before allocating any appenders.
cache.CloseAppenders();
// Invoke CloseAppenders() on non-empty FileAppenderCache - After allocating N appenders.
cache.AllocateAppender("file1.txt");
cache.AllocateAppender("file2.txt");
cache.CloseAppenders();
// Invoke CloseAppenders() on non-empty FileAppenderCache - After allocating N appenders.
cache.AllocateAppender("file1.txt");
cache.AllocateAppender("file2.txt");
cache.CloseAppenders();
FileAppenderCache cache2 = new FileAppenderCache(3, appenderFactory, fileTarget);
// Invoke CloseAppenders() on non-empty FileAppenderCache - Before allocating any appenders.
cache2.CloseAppenders(DateTime.Now);
// Invoke CloseAppenders() on non-empty FileAppenderCache - After allocating N appenders.
cache.AllocateAppender("file1.txt");
cache.AllocateAppender("file2.txt");
cache.CloseAppenders(DateTime.Now);
}
public void FileAppenderCache_GetFileInfo()
{
DateTime lastWriteTime;
long fileLength;
// Invoke GetFileInfo() on an Empty FileAppenderCache.
FileAppenderCache emptyCache = FileAppenderCache.Empty;
emptyCache.GetFileInfo("file.txt", out lastWriteTime, out fileLength);
// Default values will be returned.
Assert.True(lastWriteTime == DateTime.MinValue);
Assert.True(fileLength == -1);
IFileAppenderFactory appenderFactory = SingleProcessFileAppender.TheFactory;
ICreateFileParameters fileTarget = new FileTarget();
FileAppenderCache cache = new FileAppenderCache(3, appenderFactory, fileTarget);
// Invoke GetFileInfo() on non-empty FileAppenderCache - Before allocating any appenders.
cache.GetFileInfo("file.txt", out lastWriteTime, out fileLength);
// Default values will be returned.
Assert.True(lastWriteTime == DateTime.MinValue);
Assert.True(fileLength == -1);
String tempFile = Path.Combine(
Path.GetTempPath(),
Path.Combine(Guid.NewGuid().ToString(), "file.txt")
);
// Allocate an appender.
BaseFileAppender appender = cache.AllocateAppender(tempFile);
appender.Write(StringToBytes("NLog test string."));
//
// Note: Encoding is ASSUMED to be Unicode. There is no explicit reference to which encoding will be used
// for the file.
//
// File information should be returned.
cache.GetFileInfo(tempFile, out lastWriteTime, out fileLength);
Assert.False(lastWriteTime == DateTime.MinValue);
Assert.True(fileLength == 34);
// Clean up.
appender.Flush();
appender.Close();
}
