public void FinalPathNameBasic()
{
using (var cleaner = new TestFileCleaner())
{
string filePath = cleaner.CreateTestFile("FinalPathNameBehavior");
using (var handle = FileMethods.CreateFile(filePath.ToLower(), CreationDisposition.OpenExisting, DesiredAccess.GenericRead))
{
handle.IsInvalid.Should().BeFalse();
string extendedPath = @"\\?\" + filePath;
FileMethods.GetFinalPathNameByHandle(handle, GetFinalPathNameByHandleFlags.FILE_NAME_NORMALIZED)
.Should().Be(extendedPath);
FileMethods.GetFinalPathNameByHandle(handle, GetFinalPathNameByHandleFlags.FILE_NAME_OPENED)
.Should().Be(extendedPath);
FileMethods.GetFinalPathNameByHandle(handle, GetFinalPathNameByHandleFlags.VOLUME_NAME_DOS)
.Should().Be(extendedPath);
FileMethods.GetFinalPathNameByHandle(handle, GetFinalPathNameByHandleFlags.VOLUME_NAME_GUID)
.Should().StartWith(@"\\?\Volume");
FileMethods.GetFinalPathNameByHandle(handle, GetFinalPathNameByHandleFlags.VOLUME_NAME_NT)
.Should().StartWith(@"\Device\");
FileMethods.GetFinalPathNameByHandle(handle, GetFinalPathNameByHandleFlags.VOLUME_NAME_NONE)
.Should().Be(filePath.Substring(2));
}
}
}
public void FinalPathNameLongPath()
{
using (var cleaner = new TestFileCleaner())
{
string longPath = @"\\?\" + PathGenerator.CreatePathOfLength(cleaner.TempFolder, 500);
string filePath = Paths.Combine(longPath, System.IO.Path.GetRandomFileName());
FileHelper.CreateDirectoryRecursive(longPath);
FileHelper.WriteAllText(filePath, "FinalPathNameLongPathPrefixRoundTripBehavior");
using (var handle = FileMethods.CreateFile(filePath, CreationDisposition.OpenExisting, DesiredAccess.GenericRead))
{
handle.IsInvalid.Should().BeFalse();
FileMethods.GetFinalPathNameByHandle(handle, GetFinalPathNameByHandleFlags.FILE_NAME_NORMALIZED)
.Should().Be(filePath);
FileMethods.GetFinalPathNameByHandle(handle, GetFinalPathNameByHandleFlags.FILE_NAME_OPENED)
.Should().Be(filePath);
FileMethods.GetFinalPathNameByHandle(handle, GetFinalPathNameByHandleFlags.VOLUME_NAME_DOS)
.Should().Be(filePath);
FileMethods.GetFinalPathNameByHandle(handle, GetFinalPathNameByHandleFlags.VOLUME_NAME_GUID)
.Should().StartWith(@"\\?\Volume");
FileMethods.GetFinalPathNameByHandle(handle, GetFinalPathNameByHandleFlags.VOLUME_NAME_NT)
.Should().StartWith(@"\Device\");
FileMethods.GetFinalPathNameByHandle(handle, GetFinalPathNameByHandleFlags.VOLUME_NAME_NONE)
.Should().Be(filePath.Substring(6));
}
}
}
public void FinalPathNameForLinks()
{
if (!CanCreateSymbolicLinks())
{
return;
}
// GetFinalPathName always points to the linked file unless you specifically open the reparse point
using (var cleaner = new TestFileCleaner())
{
string filePath = Paths.Combine(cleaner.TempFolder, "Target");
string extendedPath = @"\\?\" + filePath;
FileHelper.WriteAllText(filePath, "CreateSymbolicLinkToFile");
string symbolicLink = Paths.Combine(cleaner.TempFolder, "Link");
string extendedLink = @"\\?\" + symbolicLink;
FileMethods.CreateSymbolicLink(symbolicLink, filePath);
FileMethods.FileExists(symbolicLink).Should().BeTrue("symbolic link should exist");
// GetFinalPathName should normalize the casing, pushing ToUpper to validate
using (var handle = FileMethods.CreateFile(symbolicLink.ToUpperInvariant(), CreationDisposition.OpenExisting, DesiredAccess.GenericRead))
{
handle.IsInvalid.Should().BeFalse();
FileMethods.GetFinalPathNameByHandle(handle, GetFinalPathNameByHandleFlags.FILE_NAME_NORMALIZED)
.Should().Be(extendedPath);
FileMethods.GetFinalPathNameByHandle(handle, GetFinalPathNameByHandleFlags.FILE_NAME_OPENED)
.Should().Be(extendedPath);
}
using (var handle = FileMethods.CreateFile(symbolicLink.ToUpperInvariant(), CreationDisposition.OpenExisting, DesiredAccess.GenericRead,
ShareModes.ReadWrite, FileAttributes.None, FileFlags.OpenReparsePoint))
{
handle.IsInvalid.Should().BeFalse();
FileMethods.GetFinalPathNameByHandle(handle, GetFinalPathNameByHandleFlags.FILE_NAME_NORMALIZED)
.Should().Be(extendedLink);
FileMethods.GetFinalPathNameByHandle(handle, GetFinalPathNameByHandleFlags.FILE_NAME_OPENED)
.Should().Be(extendedLink);
}
}
}
