public async Task CancellationToken_ExceptionThrown()
{
var contents = Enumerable.Repeat("This is a test line.", 300000).ToList();
var path = Path.Combine(moveTestFolder, nameof(CancellationToken_ExceptionThrown));
Directory.CreateDirectory(moveTestFolder);
File.WriteAllLines(path, contents);
var movePath = Path.Combine(moveTestFolder, $"{nameof(CancellationToken_ExceptionThrown)}_Moved");
File.Delete(movePath);
var tokenSource = new CancellationTokenSource();
Assert.ThrowsAsync <TaskCanceledException>(async() =>
{
var task = AsyncFile.MoveAsync(path, movePath, tokenSource.Token);
tokenSource.Cancel();
await task;
});
var result = File.ReadAllLines(movePath);
Assert.IsTrue(contents.Count > result.Length);
Assert.IsTrue(File.Exists(path));
}
public static async Task MoveAsync(string sourceDirectoryName, string destDirectoryName, CancellationToken cancellationToken = default)
{
foreach (string dir in Directory.EnumerateDirectories(sourceDirectoryName))
{
string postDir = Path.Combine(destDirectoryName, dir.Substring(sourceDirectoryName.Length + 1));
if (!Directory.Exists(postDir))
{
Directory.CreateDirectory(postDir);
}
await MoveAsync(dir, postDir, cancellationToken);
}
foreach (string file in Directory.EnumerateFiles(sourceDirectoryName))
{
await AsyncFile.MoveAsync(file, Path.Combine(destDirectoryName, Path.GetFileName(file)), cancellationToken);
}
}
public async Task SamePath_FileMoved()
{
var contents = Enumerable.Repeat("This is a test line.", 150000).ToList();
var path = Path.Combine(moveTestFolder, nameof(SamePath_FileMoved));
Directory.CreateDirectory(moveTestFolder);
File.WriteAllLines(path, contents);
var movePath = path;
await AsyncFile.MoveAsync(path, movePath);
var result = File.ReadAllLines(movePath);
CollectionAssert.AreEqual(contents, result);
Assert.IsTrue(File.Exists(path));
}
public void Overwrite_ExceptionThrown()
{
var contents = Enumerable.Repeat("This is a test line.", 150).ToList();
var path = Path.Combine(moveTestFolder, nameof(Overwrite_ExceptionThrown));
Directory.CreateDirectory(moveTestFolder);
File.WriteAllLines(path, contents);
var movePath = Path.Combine(moveTestFolder, $"{nameof(Overwrite_ExceptionThrown)}_Moved");
if (!File.Exists(movePath))
{
File.Create(movePath).Dispose();
}
Assert.ThrowsAsync <IOException>(async() => await AsyncFile.MoveAsync(path, movePath));
}