public void NullEncoding_ExceptionThrown()
{
var contents = Enumerable.Repeat("This is a test line.", 150).ToList();
var path = Path.Combine(appendAllLinesTestFolder, nameof(NullEncoding_ExceptionThrown));
Directory.CreateDirectory(appendAllLinesTestFolder);
Assert.ThrowsAsync <ArgumentNullException>(async() => await AsyncFile.AppendAllLinesAsync(path, contents, null));
}
public async Task LinesAppendedWithEncoding(Encoding encoding)
{
var contents = Enumerable.Repeat("This is a test line.", 150).ToList();
var path = Path.Combine(appendAllLinesTestFolder, nameof(LinesAppendedWithEncoding));
Directory.CreateDirectory(appendAllLinesTestFolder);
File.WriteAllLines(path, contents, encoding);
await AsyncFile.AppendAllLinesAsync(path, contents, encoding);
contents.AddRange(Enumerable.Repeat("This is a test line.", 150));
var result = File.ReadAllLines(path, encoding);
CollectionAssert.AreEqual(contents, result);
}
public void CancellationToken_LinesAppended()
{
var contents = Enumerable.Repeat("This is a test line.", 150).ToList();
var path = Path.Combine(appendAllLinesTestFolder, nameof(CancellationToken_LinesAppended));
Directory.CreateDirectory(appendAllLinesTestFolder);
File.WriteAllLines(path, contents);
contents.AddRange(Enumerable.Repeat("This is a test line.", 150000));
var cancellationTokenSource = new CancellationTokenSource();
Assert.ThrowsAsync <TaskCanceledException>(
async() =>
{
var task = AsyncFile.AppendAllLinesAsync(path, contents, cancellationTokenSource.Token);
cancellationTokenSource.Cancel();
await task;
});
var result = File.ReadAllLines(path);
Assert.IsTrue(contents.Count > result.Length);
}