public void WindowsErrorToHresultMappings(WindowsError error, HRESULT expected)
{
HRESULT result = ErrorMacros.HRESULT_FROM_WIN32(error);
result.Should().Be(expected);
}
public void CreateSymbolicLinkToFile()
{
using (var cleaner = new TestFileCleaner())
{
string filePath = cleaner.CreateTestFile("CreateSymbolicLinkToFile");
string symbolicLink = cleaner.GetTestPath();
Action action = () => FileMethods.CreateSymbolicLink(symbolicLink, filePath);
if (CanCreateSymbolicLinks())
{
action();
var attributes = FileMethods.GetFileAttributes(symbolicLink);
attributes.Should().HaveFlag(FileAttributes.ReparsePoint);
using (var handle = FileMethods.CreateFile(symbolicLink, CreationDisposition.OpenExisting, DesiredAccess.ReadExtendedAttributes,
ShareModes.All, fileFlags: FileFlags.OpenReparsePoint))
{
handle.IsInvalid.Should().BeFalse();
var(printName, substituteName, tag) = DeviceMethods.GetReparsePointNames(handle);
tag.Should().Be(ReparseTag.SymbolicLink);
printName.Should().Be(filePath);
substituteName.Should().Be(@"\??\" + filePath);
}
}
else
{
// Can't create links unless you have admin rights SE_CREATE_SYMBOLIC_LINK_NAME SeCreateSymbolicLinkPrivilege
action.ShouldThrow <System.IO.IOException>().And.HResult.Should().Be((int)ErrorMacros.HRESULT_FROM_WIN32(WindowsError.ERROR_PRIVILEGE_NOT_HELD));
}
}
}
public void OpenFileWithTrailingSeparator()
{
using (var cleaner = new TestFileCleaner())
{
string testFile = cleaner.CreateTestFile(nameof(OpenFileWithTrailingSeparator));
string fullName = FileMethods.GetFullPathName(Paths.AddTrailingSeparator(testFile));
FindOperation <string> find = new FindOperation <string>(testFile);
Action action = () => find.FirstOrDefault();
action.ShouldThrow <ArgumentException>().And.HResult.Should().Be((int)ErrorMacros.HRESULT_FROM_WIN32(WindowsError.ERROR_INVALID_PARAMETER));
action = () => FileMethods.CreateFile(Paths.AddTrailingSeparator(testFile), CreationDisposition.OpenExisting, DesiredAccess.ReadAttributes);
action.ShouldThrow <WInteropIOException>().And.HResult.Should().Be((int)ErrorMacros.HRESULT_FROM_WIN32(WindowsError.ERROR_INVALID_NAME));
}
}
public void CreateSymbolicLinkToLongPathFile()
{
using (var cleaner = new TestFileCleaner())
{
string longPath = @"\\?\" + PathGenerator.CreatePathOfLength(cleaner.TempFolder, 500);
FileHelper.CreateDirectoryRecursive(longPath);
string filePath = cleaner.CreateTestFile("CreateSymbolicLinkToLongPathFile", longPath);
string symbolicLink = cleaner.GetTestPath();
Action action = () => FileMethods.CreateSymbolicLink(symbolicLink, filePath);
if (CanCreateSymbolicLinks())
{
action();
var attributes = FileMethods.GetFileAttributes(symbolicLink);
attributes.Should().HaveFlag(FileAttributes.ReparsePoint);
}
else
{
action.ShouldThrow <System.IO.IOException>().And.HResult.Should().Be((int)ErrorMacros.HRESULT_FROM_WIN32(WindowsError.ERROR_PRIVILEGE_NOT_HELD));
}
}
}
public void LockedFileDirectoryDeletion()
{
using (var cleaner = new TestFileCleaner())
{
string directory = cleaner.GetTestPath();
DirectoryMethods.CreateDirectory(directory);
FileMethods.DirectoryExists(directory).Should().BeTrue();
string file = cleaner.CreateTestFile(nameof(LockedFileDirectoryDeletion), directory);
using (var handle = FileMethods.CreateFile(file, CreationDisposition.OpenExisting, DesiredAccess.GenericRead, ShareModes.ReadWrite | ShareModes.Delete))
{
handle.IsInvalid.Should().BeFalse();
// Mark the file for deletion
FileMethods.DeleteFile(file);
// RemoveDirectory API call will throw
Action action = () => DirectoryMethods.RemoveDirectory(directory);
action.ShouldThrow <WInteropIOException>().And.HResult.Should().Be((int)ErrorMacros.HRESULT_FROM_WIN32(WindowsError.ERROR_DIR_NOT_EMPTY));
// Opening the directory for deletion will succeed, but have no impact
using (var directoryHandle = FileMethods.CreateFile(
directory,
CreationDisposition.OpenExisting,
DesiredAccess.ListDirectory | DesiredAccess.Delete,
ShareModes.ReadWrite | ShareModes.Delete,
FileAttributes.None,
FileFlags.BackupSemantics | FileFlags.DeleteOnClose))
{
directoryHandle.IsInvalid.Should().BeFalse();
}
}
// File will be gone now that the handle is closed
FileMethods.FileExists(file).Should().BeFalse();
// But the directory will still exist as it doesn't respect DeleteOnClose with an open handle when it is closed
FileMethods.DirectoryExists(directory).Should().BeTrue();
// Create a handle to the directory again with DeleteOnClose and it will actually delete the directory
using (var directoryHandle = FileMethods.CreateFile(
directory,
CreationDisposition.OpenExisting,
DesiredAccess.ListDirectory | DesiredAccess.Delete,
ShareModes.ReadWrite | ShareModes.Delete,
FileAttributes.None,
FileFlags.BackupSemantics | FileFlags.DeleteOnClose))
{
directoryHandle.IsInvalid.Should().BeFalse();
}
FileMethods.DirectoryExists(directory).Should().BeFalse();
}
}