private void Directory_EnumerateAlternateDataStreams(bool isNetwork)
{
UnitTestConstants.PrintUnitTestHeader(isNetwork);
var tempPath = Path.GetTempPath("Directory-EnumerateAlternateDataStreams-" + Path.GetRandomFileName());
if (isNetwork)
{
tempPath = Path.LocalToUnc(tempPath);
}
const int defaultStreamsDirectory = 0; // The default number of data streams for a folder.
Console.WriteLine("\nInput Directory Path: [{0}]", tempPath);
Console.WriteLine("\nA directory is created and {0} streams are added.", UnitTestConstants.AllStreams.Count());
try
{
var di = new DirectoryInfo(tempPath);
di.Create();
var currentNumberofStreams = di.EnumerateAlternateDataStreams().Count();
Assert.AreEqual(defaultStreamsDirectory, currentNumberofStreams, "Total amount of default streams do not match.");
Assert.AreEqual(currentNumberofStreams, Directory.EnumerateAlternateDataStreams(tempPath).Count(), "Total amount of Directory.EnumerateAlternateDataStreams() streams do not match.");
Assert.AreEqual(currentNumberofStreams, di.EnumerateAlternateDataStreams().Count(), "Total amount of DirectoryInfo() streams do not match.");
// Create alternate data streams.
// Because of the colon, you must supply a full path and use PathFormat.FullPath or PathFormat.LongFullPath,
// to prevent a: "NotSupportedException: path is in an invalid format." exception.
File.WriteAllLines(tempPath + Path.StreamSeparator + UnitTestConstants.MyStream, UnitTestConstants.StreamArrayContent, PathFormat.FullPath);
File.WriteAllText(tempPath + Path.StreamSeparator + UnitTestConstants.MyStream2, UnitTestConstants.StreamStringContent, PathFormat.FullPath);
var newNumberofStreams = Directory.EnumerateAlternateDataStreams(tempPath).Count();
Console.WriteLine("\n\nCurrent stream Count(): [{0}]", newNumberofStreams);
// Enumerate all streams from the folder.
foreach (var stream in di.EnumerateAlternateDataStreams())
{
Assert.IsTrue(UnitTestConstants.Dump(stream, -10));
}
// Show the contents of our streams.
Console.WriteLine();
foreach (var streamName in UnitTestConstants.AllStreams)
{
Console.WriteLine("\n\tStream name: [{0}]", streamName);
// Because of the colon, you must supply a full path and use PathFormat.FullPath or PathFormat.LongFullPath,
// to prevent a: "NotSupportedException: path is in an invalid format." exception.
foreach (var line in File.ReadAllLines(tempPath + Path.StreamSeparator + streamName, PathFormat.FullPath))
{
Console.WriteLine("\t\t{0}", line);
}
}
}
catch (Exception ex)
{
Console.WriteLine("\n\tCaught (unexpected) {0}: [{1}]", ex.GetType().FullName, ex.Message.Replace(Environment.NewLine, " "));
Assert.IsTrue(false);
}
finally
{
Directory.Delete(tempPath);
Assert.IsFalse(Directory.Exists(tempPath), "Cleanup failed: Directory should have been removed.");
}
Console.WriteLine();
}
