public static void CheckListener()
{
string environmentVariable = "%USERPROFILE%";
string fileName = Path.Combine(environmentVariable, "test.log");
RollingFlatFileTraceListener listener = new RollingFlatFileTraceListener(fileName, "header", "footer", null, 1, "", RollFileExistsBehavior.Increment, RollInterval.Day);
listener.TraceData(new TraceEventCache(), "source", TraceEventType.Error, 1, "This is a test");
listener.Dispose();
}
public void RollingFlatFileTraceListenerReplacedEnviromentVariablesWillFallBackIfNotPrivilegesToRead()
{
string environmentVariable = "%USERPROFILE%";
string fileName = Path.Combine(environmentVariable, "foo.log");
EnvironmentPermission denyPermission = new EnvironmentPermission(PermissionState.Unrestricted);
denyPermission.Deny();
try
{
RollingFlatFileTraceListener listener = new RollingFlatFileTraceListener(fileName, "header", "footer", null, 1, "", RollFileExistsBehavior.Increment, RollInterval.Day);
listener.TraceData(new TraceEventCache(), "source", TraceEventType.Error, 1, "This is a test");
listener.Dispose();
}
finally
{
EnvironmentPermission.RevertAll();
}
Assert.Fail("Permission was not denied.");
}
public void RollingFlatFileTraceListenerReplacedInexistingEnviromentVariables()
{
string fileName = @"%FOO%\%MY_VARIABLE%\foo.log";
RollingFlatFileTraceListener listener = new RollingFlatFileTraceListener(fileName, "header", "footer", null, 1, "", RollFileExistsBehavior.Increment, RollInterval.Day);
listener.TraceData(new TraceEventCache(), "source", TraceEventType.Error, 1, "This is a test");
listener.Dispose();
string fileNameFromListener = string.Empty;
string expandedFileName = EnvironmentHelper.ReplaceEnvironmentVariables(fileName);
string expectedFileName = Path.GetFileName(expandedFileName);
bool result = File.Exists(expandedFileName);
Assert.IsTrue(result);
File.Delete(expandedFileName);
Assert.AreEqual(expectedFileName, expandedFileName);
}
public void RollingFlatFileTraceListenerReplacedEnviromentVariables()
{
string fileName = @"%USERPROFILE%\foo.log";
string fileNameFromListener = string.Empty;
RollingFlatFileTraceListener listener = new RollingFlatFileTraceListener(fileName, "header", "footer", null, 1, "", RollFileExistsBehavior.Increment, RollInterval.Day);
listener.TraceData(new TraceEventCache(), "source", TraceEventType.Error, 1, "This is a test");
listener.Dispose();
string expandedFileName = Environment.ExpandEnvironmentVariables(fileName);
bool result = File.Exists(expandedFileName);
Assert.IsTrue(result);
using (FileStream stream = File.Open(expandedFileName, FileMode.Open))
{
fileNameFromListener = stream.Name;
}
File.Delete(expandedFileName);
Assert.AreEqual(expandedFileName, fileNameFromListener);
}
public void WillRollExistingFileIfOverDateThreshold()
{
string existingPayload = new string('c', 10);
DateTime currentDateTime = new DateTime(2007, 1, 1);
File.WriteAllText(fileName, existingPayload);
File.SetCreationTime(fileName, currentDateTime);
using (RollingFlatFileTraceListener traceListener
= new RollingFlatFileTraceListener(fileName, "header", "footer", null,
1, "yyyy", RollFileExistsBehavior.Overwrite, RollInterval.Day))
{
traceListener.RollingHelper.DateTimeProvider = dateTimeProvider;
dateTimeProvider.currentDateTime = currentDateTime.AddDays(2);
traceListener.TraceData(new TraceEventCache(),
"source",
TraceEventType.Error,
0,
"logged message");
}
Assert.AreEqual(existingPayload, File.ReadAllText(fileNameWithoutExtension + ".2007" + extension));
Assert.IsTrue(File.ReadAllText(fileName).Contains("logged message"));
}
public void WillTruncateExistingFileIfOverSizeThresholdAndNoPatternIsSpecifiedForOverwriteBehavior()
{
string existingPayload = new string('c', 5000);
DateTime currentDateTime = new DateTime(2007, 1, 1);
File.WriteAllText(fileName, existingPayload);
File.SetCreationTime(fileName, currentDateTime);
using (RollingFlatFileTraceListener traceListener
= new RollingFlatFileTraceListener(fileName, "header", "footer", null,
1, "", RollFileExistsBehavior.Overwrite, RollInterval.None))
{
traceListener.RollingHelper.DateTimeProvider = dateTimeProvider;
dateTimeProvider.currentDateTime = currentDateTime;
traceListener.TraceData(new TraceEventCache(),
"source",
TraceEventType.Error,
0,
"logged message");
}
Assert.IsFalse(File.ReadAllText(fileName).Contains(existingPayload));
Assert.IsTrue(File.ReadAllText(fileName).Contains("logged message"));
}
