public void WriteToFolderPath()
{
// Arrange
string recordText = "Some record";
string logFilePath = Path.Combine(TestContext.CurrentContext.TestDirectory, "logs", "_log.txt");
FileInfo fileNfo = new FileInfo(logFilePath);
if (fileNfo.Exists)
{
DirectoryInfo fileFolder = fileNfo.Directory;
fileNfo.Delete();
fileFolder?.Delete(true);
}
FileStream fileStream = new FileStream {
FileName = logFilePath
};
// Act
using (fileStream) {
fileStream.Write(recordText, new LogData());
}
// Assert
fileNfo.Refresh();
Assert.IsTrue(fileNfo.Exists);
Assert.IsTrue(fileNfo.Directory?.Exists);
Assert.AreEqual(recordText, File.ReadAllText(logFilePath));
}
public void WriteNotAppended()
{
// Arrange
string baseText = "This is the first line\n";
string recordText = "This is the recorded line.";
string logFile = Path.Combine(TestContext.CurrentContext.TestDirectory, "fileToAppend.txt");
if (File.Exists(logFile))
{
File.Delete(logFile);
}
File.WriteAllText(logFile, baseText);
// Act
FileStream fileStream = new FileStream {
FileName = logFile, Append = false
};
using (fileStream) {
fileStream.Write(recordText, new LogData());
}
// Assert
Assert.IsTrue(File.Exists(logFile));
string logFileText = File.ReadAllText(logFile);
Assert.IsNotEmpty(logFileText);
Assert.AreEqual(recordText, logFileText);
}
public void Write()
{
// Arrange
string logFilePath = Path.Combine(TestContext.CurrentContext.TestDirectory, "_log.txt");
if (File.Exists(logFilePath))
{
File.Delete(logFilePath);
}
string logText = "INFO 30.12.2018 19:44:51 FileStreamTests - Something about logging.\r\n";
FileStream fileStream = new FileStream {
FileName = logFilePath
};
// Act
using (fileStream) {
fileStream.Write(logText, new LogData());
}
// Assert
string fileText = File.ReadAllText(logFilePath);
Assert.AreEqual(logText, fileText);
}
public void WriteDailyRolling()
{
// Arrange
string[] files = Directory.GetFiles(TestContext.CurrentContext.TestDirectory, "*.txt");
for (int i = -1; ++i != files.Length;)
{
File.Delete(files[i]);
}
string logFilePath = Path.Combine(TestContext.CurrentContext.TestDirectory, "_log.txt");
string logTextYesterday = "INFO 30.12.2018 19:44:51 FileStreamTests - Say hi from yesterday.\r\n";
string logTextToday = "INFO 31.12.2018 19:44:51 FileStreamTests - Say hi from today.\r\n";
FileStream fileStream = new FileStream {
FileName = logFilePath, DailyRolling = true
};
DateTime today = DateTime.Today;
DateTime yesterday = today.AddDays(-1);
// Act
fileStream.Write(logTextYesterday, new LogData());
((FileStream._Bender)fileStream).SetLastWrite(yesterday);
fileStream.Write(logTextToday, new LogData());
fileStream.Dispose();
// Assert
string year = yesterday.Year.ToString();
string month = yesterday.Month.ToString("00");
string day = yesterday.Day.ToString("00");
string logFileYesterdayName = $"_log-{year}-{month}-{day}.txt";
string logFileYesterday = Path.Combine(TestContext.CurrentContext.TestDirectory, logFileYesterdayName);
string logFileToday = Path.Combine(TestContext.CurrentContext.TestDirectory, "_log.txt");
Assert.IsTrue(File.Exists(logFileYesterday));
Assert.IsTrue(File.Exists(logFileToday));
string todayFileText = File.ReadAllText(logFileToday);
Assert.AreEqual(logTextToday, todayFileText);
string yesterdayFileText = File.ReadAllText(logFileYesterday);
Assert.AreEqual(logTextYesterday, yesterdayFileText);
}
public void WriteMinimalLocking()
{
// Arrange
string baseText = "This is the first line\n";
string recordText = "This is the recorded line.";
string logFile = Path.Combine(TestContext.CurrentContext.TestDirectory, "fileToAppend.txt");
if (File.Exists(logFile))
{
File.Delete(logFile);
}
// Act
FileStream fileStream = new FileStream {
FileName = logFile, Append = true, LockingModel = ELockingModel.Minimal
};
using (fileStream) {
fileStream.Write(baseText, new LogData());
fileStream.Write(recordText, new LogData());
}
// Assert
Assert.IsTrue(File.Exists(logFile));
string logFileText = File.ReadAllText(logFile);
Assert.IsNotEmpty(logFileText);
string expectedText = new StringBuilder()
.Append(baseText)
.Append(recordText)
.ToString();
Assert.AreEqual(expectedText, logFileText);
}