public void TargetStreamIsCommittedOnlyOnceEvenIfStreamIsRewound()
{
var targetStream = new Mock <System.IO.Stream> {
CallBase = true
};
var streamTransacted = targetStream.As <ITransactionalStream>();
streamTransacted.Setup(s => s.Commit());
using (var stream = new ReplicatingReadStream(new MemoryStream(_content), targetStream.Object))
{
stream.Drain();
stream.Position = 0;
stream.Drain();
}
streamTransacted.Verify(s => s.Commit(), Times.Once());
}
public void LengthCanBeReadAfterStreamExhaustion()
{
using (var stream = new ReplicatingReadStream(new MemoryStream(_content), new MemoryStream()))
{
stream.Drain();
stream.Length.Should().Be(_content.Length);
}
}
public void SourceStreamIsReplicatedToTargetStreamWhileBeingRead()
{
using (var targetStream = new MemoryStream())
using (var stream = new ReplicatingReadStream(new MemoryStream(_content), targetStream))
{
stream.Drain();
_content.Should().BeEquivalentTo(targetStream.ToArray());
}
}
public void SourceStreamIsSeekableAfterExhaustion()
{
using (var stream = new ReplicatingReadStream(new MemoryStream(_content), new MemoryStream()))
{
stream.CanSeek.Should().BeFalse();
stream.Drain();
stream.CanSeek.Should().BeTrue();
Invoking(() => stream.Position = 0).Should().NotThrow();
}
}
public void TargetStreamIsCommittedUponSourceStreamExhaustion()
{
var targetStream = new Mock <System.IO.Stream> {
CallBase = true
};
targetStream.As <ITransactionalStream>().Setup(st => st.Commit()).Verifiable("targetStream");
using (var stream = new ReplicatingReadStream(new MemoryStream(_content), targetStream.Object))
{
stream.Drain();
}
targetStream.VerifyAll();
}