public void DeleteFilesCancellationDoesNotCrash()
{
const int FileDeletionsAllowed = 2;
var testHook = new DirectoryScrubber.TestHooks
{
OnDeletion = new Action <string, int>((path, numDeletedSoFar) =>
{
if (numDeletedSoFar > FileDeletionsAllowed)
{
m_cancellationTokenSource.Cancel();
}
})
};
string rootDir = Path.Combine(TemporaryDirectory, nameof(DeleteFilesCanDeleteFile));
List <string> files = new List <string>();
for (var i = 0; i < FileDeletionsAllowed * 3; i++)
{
string fullFilePath = WriteFile(Path.Combine(rootDir, $"out{i}.txt"));
XAssert.FileExists(fullFilePath);
files.Add(fullFilePath);
}
XAssert.IsFalse(m_cancellationTokenSource.IsCancellationRequested);
var numDeleted = Scrubber.DeleteFiles(files.ToArray(), testHook: testHook);
XAssert.IsTrue(m_cancellationTokenSource.IsCancellationRequested);
XAssert.Equals(FileDeletionsAllowed, numDeleted);
}
public void DeleteFilesCannotDeleteFolder()
{
string rootDir = Path.Combine(TemporaryDirectory, nameof(DeleteFilesCannotDeleteFolder));
Directory.CreateDirectory(rootDir);
XAssert.IsTrue(Directory.Exists(rootDir));
var numDeleted = Scrubber.DeleteFiles(new[] { rootDir });
XAssert.IsTrue(Directory.Exists(rootDir));
XAssert.AreEqual(0, numDeleted);
}
public void DeleteFilesCanDeleteSymlinkToAbsentFile(bool declareSymlinkTargetAsFile)
{
string rootDir = Path.Combine(TemporaryDirectory, nameof(DeleteFilesCanDeleteSymlinkToAbsentFile));
string fullSymlinkPath = WriteSymlink(Path.Combine(rootDir, "symlink-to-absent"), "non-existent-target", isTargetFile: declareSymlinkTargetAsFile);
XAssert.IsTrue(FileUtilities.FileExistsNoFollow(fullSymlinkPath));
var numDeleted = Scrubber.DeleteFiles(new[] { fullSymlinkPath });
XAssert.AreEqual(1, numDeleted);
XAssert.IsFalse(File.Exists(fullSymlinkPath));
}
public void DeleteFilesCanDeleteFile()
{
string rootDir = Path.Combine(TemporaryDirectory, nameof(DeleteFilesCanDeleteFile));
string fullFilePath = WriteFile(Path.Combine(rootDir, "out.txt"));
XAssert.IsTrue(File.Exists(fullFilePath));
var numDeleted = Scrubber.DeleteFiles(new[] { fullFilePath });
XAssert.IsFalse(File.Exists(fullFilePath));
XAssert.AreEqual(1, numDeleted);
}
public void DeleteFilesWithPreExistingCancellationDoesNotCrash()
{
string rootDir = Path.Combine(TemporaryDirectory, nameof(DeleteFilesCanDeleteFile));
string fullFilePath = WriteFile(Path.Combine(rootDir, "out.txt"));
XAssert.FileExists(fullFilePath);
m_cancellationTokenSource.Cancel();
var numDeleted = Scrubber.DeleteFiles(new[] { fullFilePath });
XAssert.FileExists(fullFilePath);
XAssert.AreEqual(0, numDeleted);
}
public void DeleteFilesHandlesAbsentFiles()
{
string rootDir = Path.Combine(TemporaryDirectory, nameof(DeleteFilesHandlesAbsentFiles));
Directory.CreateDirectory(rootDir);
XAssert.IsTrue(Directory.Exists(rootDir));
var absentFile = Path.Combine(rootDir, "a b s e n t");
XAssert.IsFalse(File.Exists(absentFile));
var numDeleted = Scrubber.DeleteFiles(new[] { absentFile });
XAssert.IsFalse(File.Exists(absentFile));
XAssert.AreEqual(0, numDeleted);
}
public void DeleteFilesCanDeleteDirectorySymlink()
{
string rootDir = Path.Combine(TemporaryDirectory, nameof(DeleteFilesCanDeleteDirectorySymlink));
string fullTargetDirPath = Path.Combine(rootDir, "target-dir");
Directory.CreateDirectory(fullTargetDirPath);
XAssert.IsTrue(Directory.Exists(fullTargetDirPath));
string fullSymlinkPath = WriteSymlink(Path.Combine(rootDir, "directory symlink"), fullTargetDirPath, isTargetFile: false);
XAssert.IsTrue(FileUtilities.FileExistsNoFollow(fullSymlinkPath));
var numDeleted = Scrubber.DeleteFiles(new[] { fullSymlinkPath });
XAssert.AreEqual(1, numDeleted);
XAssert.IsFalse(File.Exists(fullSymlinkPath));
XAssert.IsTrue(Directory.Exists(fullTargetDirPath));
}
public void DeleteFilesDeletesSymlinkButNotTarget(bool useRelativeTargetForSymlink)
{
string rootDir = Path.Combine(TemporaryDirectory, nameof(DeleteFilesDeletesSymlinkButNotTarget));
string fileBasename = "out.txt";
string fullFilePath = WriteFile(Path.Combine(rootDir, fileBasename));
XAssert.IsTrue(File.Exists(fullFilePath));
string fullSymlinkPath = WriteSymlink(
Path.Combine(rootDir, $"sym-{fileBasename}"),
useRelativeTargetForSymlink ? fileBasename : fullFilePath,
isTargetFile: true);
XAssert.IsTrue(FileUtilities.FileExistsNoFollow(fullSymlinkPath));
var numDeleted = Scrubber.DeleteFiles(new[] { fullSymlinkPath });
XAssert.AreEqual(1, numDeleted);
XAssert.IsFalse(File.Exists(fullSymlinkPath));
XAssert.IsTrue(File.Exists(fullFilePath));
}
