public void FFSValidPath()
{
using var ffs = new FollowingFileStream(this.inputFilePath);
Assert.IsNotNull(
ffs,
"stream must not be null on valid path");
}
public void FFSRead(bool async)
{
using var ffs = new FollowingFileStream(this.inputFilePath, 4 * 1096, async);
var expected = "coucou";
Assert.AreEqual(0, ffs.Position);
Assert.AreEqual(expected.Length, ffs.Length);
var bytes = new byte[expected.Length];
Assert.AreEqual(expected.Length, ffs.Read(bytes, 0, bytes.Length));
Assert.AreEqual(expected, System.Text.Encoding.Default.GetString(bytes));
ffs.Seek(0, SeekOrigin.Begin);
Assert.AreEqual(expected.Length, ffs.ReadAsync(bytes, 0, bytes.Length).Result);
Assert.AreEqual(expected, System.Text.Encoding.Default.GetString(bytes));
ffs.Position = 0;
Assert.AreEqual(expected.Length, ffs.EndRead(ffs.BeginRead(bytes, 0, bytes.Length, null !, null !)));
Assert.AreEqual(expected, System.Text.Encoding.Default.GetString(bytes));
var cts = new CancellationTokenSource();
cts.Cancel();
Assert.ThrowsExceptionAsync <OperationCanceledException>(() => ffs.ReadAsync(bytes, 0, bytes.Length, cts.Token));
cts.Dispose();
}
public void FFSCaps()
{
using var ffs = new FollowingFileStream(this.inputFilePath);
Assert.IsTrue(ffs.CanRead);
Assert.IsFalse(ffs.CanWrite);
Assert.IsTrue(ffs.CanSeek);
Assert.IsTrue(ffs.CanTimeout);
}
public void FFSCopyTo(bool async)
{
{
using var ffs = new FollowingFileStream(this.inputFilePath, 4 * 1096, async);
using var destination = File.CreateText(this.outputFilePath);
ffs.ReadTimeout = 0;
ffs.CopyTo(destination.BaseStream);
}
Assert.IsTrue(FileCompare(this.inputFilePath, this.outputFilePath));
}
public void FFSModification()
{
using var ffs = new FollowingFileStream(this.inputFilePath);
Assert.ThrowsException <NotSupportedException>(() => ffs.Write(null !, 0, 0));
Assert.ThrowsException <NotSupportedException>(() => ffs.WriteAsync(null !, 0, 0));
Assert.ThrowsException <NotSupportedException>(() => ffs.WriteByte(0x0));
Assert.ThrowsException <NotSupportedException>(() => ffs.BeginWrite(null !, 0, 0, null !, null !));
Assert.ThrowsException <NotSupportedException>(() => ffs.SetLength(0));
Assert.ThrowsException <NotSupportedException>(() => ffs.Flush());
Assert.ThrowsException <NotSupportedException>(() => ffs.FlushAsync().GetAwaiter().GetResult());
}
public void FFSClose(bool async)
{
using var input = File.CreateText(this.inputFilePath);
using var ffsa = new FollowingFileStream(this.inputFilePath, 4 * 1024, async);
using var ffs = ffsa.Synchronized();
using var destination = File.CreateText(this.outputFilePath);
destination.AutoFlush = true;
var os = destination.BaseStream;
var copy = ffs.CopyToAsync(os);
Assert.AreEqual(0, os.Length);
Thread.Sleep(200);
Assert.IsFalse(copy.IsCompleted);
input.WriteLine("coucou2");
ffs.Close();
Thread.Sleep(200);
Assert.IsTrue(copy.IsCompletedSuccessfully);
}
public void FFSFollowingRead(bool async)
{
{
using var input = File.CreateText(this.inputFilePath);
using var ffs = new FollowingFileStream(this.inputFilePath, 4 * 1024, async);
using var destination = File.CreateText(this.outputFilePath);
ffs.ReadTimeout = 400;
destination.AutoFlush = true;
var os = destination.BaseStream;
var copy = ffs.CopyToAsync(os);
Assert.AreEqual(0, os.Length);
Thread.Sleep(ffs.ReadTimeout / 2);
Assert.IsFalse(copy.IsCompleted);
input.WriteLine("coucou2");
input.Close();
Assert.IsTrue(copy.Wait(3 * ffs.ReadTimeout));
}
Assert.IsTrue(FileCompare(this.inputFilePath, this.outputFilePath));
}
private static async Task CopyToOutput()
{
using var source = new FollowingFileStream(InputPath);
using var destination = new FileStream(OutputPath, FileMode.Create, FileAccess.Write, FileShare.Read);
await source.CopyToAsync(destination).ConfigureAwait(false);
}
public void FFSProperties(bool async)
{
using var ffs = new FollowingFileStream(this.inputFilePath, 4 * 1096, async);
Assert.AreEqual(this.inputFilePath, ffs.Name);
Assert.AreEqual(async, ffs.IsAsync);
}