public void SetUp()
{
_serviceContainer = new ServiceContainer();
_taskScheduler = new DefaultTaskScheduler();
_formatMatcher = new SimpleLogFileFormatMatcher(LogFileFormats.GenericText);
_logEntryParserPlugin = new SimpleLogEntryParserPlugin();
_serviceContainer.RegisterInstance <ITaskScheduler>(_taskScheduler);
_serviceContainer.RegisterInstance <ILogFileFormatMatcher>(_formatMatcher);
_serviceContainer.RegisterInstance <ILogEntryParserPlugin>(_logEntryParserPlugin);
}
public void TestDetectStreamNotAt0()
{
using (var stream = new MemoryStream())
{
var data = new byte[] { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 };
stream.Write(data, 0, data.Length);
stream.Position = 4;
var matcher = new SimpleLogFileFormatMatcher(null);
var detector = new FileFormatDetector(matcher);
detector.TryDetermineFormat("", stream, Encoding.Default);
matcher.Header.Should().NotBeNull("because the matcher should have been called");
matcher.Header.Length.Should().Be(data.Length, "because the detector should have first repositioned the stream to 0 and forwarded all first 512 bytes to the matcher");
}
}
public void Setup()
{
_services = new ServiceContainer();
_taskScheduler = new DefaultTaskScheduler();
_parser = new Mock <ILogSourceParserPlugin>();
_parser.Setup(x => x.CreateParser(It.IsAny <IServiceContainer>(), It.IsAny <ILogSource>()))
.Returns((IServiceContainer services, ILogSource source) =>
{
return(new GenericTextLogSource(source, new GenericTextLogEntryParser()));
});
_formatMatcher = new SimpleLogFileFormatMatcher(null);
_services.RegisterInstance <IRawFileLogSourceFactory>(new RawFileLogSourceFactory(_taskScheduler));
_services.RegisterInstance <ITaskScheduler>(_taskScheduler);
_services.RegisterInstance <ILogSourceParserPlugin>(_parser.Object);
_services.RegisterInstance <ILogFileFormatMatcher>(_formatMatcher);
}
public void TestSkipDetectionAfterCertaintySure()
{
using (var stream = new MemoryStream())
{
var data = new byte[] { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 };
stream.Write(data, 0, data.Length);
stream.Position = 4;
var matcher = new SimpleLogFileFormatMatcher(null, Certainty.None);
var detector = new FileFormatDetector(matcher);
detector.TryDetermineFormat("", stream, Encoding.Default).Should().Be(LogFileFormats.GenericText, "because our detector couldn't find a format so the fallback should be generic text");
matcher.NumInvocations.Should().Be(1, "because the detector should try at least once");
matcher.Format = LogFileFormats.Csv;
matcher.Certainty = Certainty.Sure;
detector.TryDetermineFormat("", stream, Encoding.Default).Should().Be(LogFileFormats.Csv, "because now our detector could find a match and this should have been forward instead of generic text");
matcher.NumInvocations.Should().Be(2, "because the last invocation our matcher was uncertain and thus the detector should have asked again");
detector.TryDetermineFormat("", stream, Encoding.Default).Should().Be(LogFileFormats.Csv);
matcher.NumInvocations.Should().Be(2, "because our matcher was certain it is a CSV file so the detector shouldn't have bothered to ask the matcher again");
}
}
