I'm writing an application where the user can change (at runtime) the directory where the log4net log is stored. The directory string is stored in the app.config.
When I want to test if the log file is created in the right directory with NUnit, the logfile (and the corresponding directory) is not created. When looking online for this problem I read that NUnit stops the logging from working because it uses log4net itself. The provided sample tells you to create a additional .config (Test.config) which also contains the log4net sections and to load the configuration inside the testing class, which I did. There is still no log file created when using the unit test. When starting the application, the log file is created as it should.Method to set the log directory:
public void MyMethod()
{
string logDirectory = app.Settings["LogDirectory"].Value;
//assure that the file name can be appended to the path
if (!logDirectory.EndsWith(@"\"))
{
logDirectory += @"\";
}
//find the rolling file appender and set its file name
XmlConfigurator.Configure();
Hierarchy hierarchy = (Hierarchy)LogManager.GetRepository();
foreach (IAppender appender in hierarchy.Root.Appenders)
{
if (appender is RollingFileAppender)
{
RollingFileAppender fileAppender = (RollingFileAppender)appender;
string logFileLocation = string.Format("{0}Estimation_Protocol_{1}.txt",
logDirectory, EstimatorHelper.SoftwareVersionAndDateTime());
fileAppender.File = logFileLocation;
fileAppender.ActivateOptions();
break;
}
}
log = LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
log.Debug("Logging directory & file name set.");
}
The test class:
class EstimatorTests
{
private static readonly log4net.ILog log = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
public EstimatorTests()
{
FileInfo fileInfo = new FileInfo(@"%property{LogName}");
log4net.Config.XmlConfigurator.Configure(fileInfo);
}
[Test]
public void TestLoadInputPaths()
{
Configuration config = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);
AppSettingsSection app = config.AppSettings;
string time 开发者_开发问答= DateTime.Now.Ticks.ToString();
app.Settings["ProcessingProtocolDirectory"].Value = "C:\\thisFolderDoesntExist" + time;
Form mainForm = new Form();
Form.MyMethod();
Assert.IsTrue(Directory.Exists("C:\\thisFolderDoesntExist" + time));
//this assert fails!
}
}
The log4net config:
<configSections>
<section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler, log4net"/>
</configSections>
<log4net>
<appender name="RollingFileAppender" type="log4net.Appender.RollingFileAppender">
<file type="log4net.Util.PatternString" value="%property{LogName}" />
<appendToFile value="true"/>
<rollingStyle value="Size"/>
<maxSizeRollBackups value="5"/>
<maximumFileSize value="10MB"/>
<staticLogFileName value="true"/>
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%date %level %logger - %message%newline%exception%newline"/>
</layout>
</appender>
<root>
<level value="DEBUG"/>
<appender-ref ref="RollingFileAppender"/>
</root>
</log4net>
I did not test it but I think you need to remove the call to XmlConfigurator.Configure();
in MyMethod
because this will overwrite the configuration you do in the test class.
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