public void SetLengthOpensFile()
{
using (var stream = new LazyFileStream(tempFile, FileOpenMode.ReadWrite)) {
stream.SetLength(1);
Assert.That(stream.BaseStream, Is.Not.Null);
Assert.That(File.Exists(tempFile), Is.True);
Assert.That(stream.Length, Is.EqualTo(1));
Assert.That(stream.BaseStream.Length, Is.EqualTo(1));
}
}
public void LengthSyncWithStream()
{
using (var stream = new LazyFileStream(tempFile, FileOpenMode.ReadWrite)) {
stream.SetLength(1);
Assert.That(stream.Length, Is.EqualTo(1));
stream.BaseStream.Position = 1;
stream.BaseStream.WriteByte(0xAA);
Assert.That(stream.Length, Is.EqualTo(2));
}
}
public void PublicMethodThrowAfterDispose()
{
var stream = new LazyFileStream(tempFile, FileOpenMode.ReadWrite);
stream.Dispose();
byte[] buffer = new byte[1];
Assert.That(
() => stream.SetLength(10),
Throws.InstanceOf <ObjectDisposedException>());
Assert.That(
() => stream.WriteByte(0x00),
Throws.InstanceOf <ObjectDisposedException>());
Assert.That(
() => stream.Write(buffer, 0, 1),
Throws.InstanceOf <ObjectDisposedException>());
Assert.That(
() => stream.ReadByte(),
Throws.InstanceOf <ObjectDisposedException>());
Assert.That(
() => stream.Read(buffer, 0, 1),
Throws.InstanceOf <ObjectDisposedException>());
}