public void Should_throw_parameters_greater_than_source_length()
{
var ms = new MemoryStream(new byte[] { 1, 2, 3, 4 });
ArgumentOutOfRangeException exceptionFrom = null;
ArgumentOutOfRangeException exceptionTo = null;
try
{
var tested = new NarrowedStream(ms, 10, 20);
}
catch (ArgumentOutOfRangeException ex)
{
exceptionFrom = ex;
}
try
{
var tested = new NarrowedStream(ms, 0, 20);
}
catch (ArgumentOutOfRangeException ex)
{
exceptionTo = ex;
}
Assert.NotNull(exceptionFrom);
Assert.NotNull(exceptionTo);
Assert.Contains("from", exceptionFrom.Message);
Assert.Contains("to", exceptionTo.Message);
}
public void Check_reading_from_some_offset()
{
var ms = PrepareSourceStream();
var tested = new NarrowedStream(ms, 1, 6);
var reader = new StreamReader(tested);
var result = reader.ReadToEnd();
Assert.Equal("000010", result);
}
public void Check_reading_from_begining()
{
var ms = PrepareSourceStream();
var tested = new NarrowedStream(ms, 0, 5);
var reader = new StreamReader(tested);
var result = reader.ReadToEnd();
Assert.Equal("000001", result);
}
public void Check_copy_async()
{
var ms = PrepareSourceStream();
var tested = new NarrowedStream(ms, 0, ms.Length - 1);
var reader = new StreamReader(tested);
var result = new MemoryStream();
tested.CopyToAsync(result).Wait();
Assert.Equal(500000*6, result.Length);
}
public void Check_reading_all()
{
var ms = PrepareSourceStream();
var tested = new NarrowedStream(ms, 0, ms.Length - 1);
var reader = new StreamReader(tested);
var result = reader.ReadToEnd();
Assert.Equal(500000 * 6, result.Length);
Assert.Equal(500000 * 6, tested.Length);
}
public SourceFilePart(NarrowedStream sourceChunk)
: base(sourceChunk)
{
this.sourceChunk = sourceChunk;
Headers.ContentDisposition = new ContentDispositionHeaderValue("file");
Headers.ContentDisposition.Parameters.Add(new NameValueHeaderValue(SyncingMultipartConstants.NeedType,SyncingNeedType));
Headers.ContentDisposition.Parameters.Add(new NameValueHeaderValue(SyncingMultipartConstants.RangeFrom, sourceChunk.From.ToString(CultureInfo.InvariantCulture)));
Headers.ContentDisposition.Parameters.Add(new NameValueHeaderValue(SyncingMultipartConstants.RangeTo, sourceChunk.To.ToString(CultureInfo.InvariantCulture)));
Headers.ContentType = new MediaTypeHeaderValue("application/octet-stream");
}
public override Stream GetStream(HttpContent parent, HttpContentHeaders headers)
{
if (parent == null)
throw new ArgumentNullException("parent");
if (headers == null)
throw new ArgumentNullException("headers");
var parameters = headers.ContentDisposition.Parameters.ToDictionary(t => t.Name);
var needType = parameters[SyncingMultipartConstants.NeedType].Value;
var from = Convert.ToInt64(parameters[SyncingMultipartConstants.RangeFrom].Value);
var to = Convert.ToInt64(parameters[SyncingMultipartConstants.RangeTo].Value);
var length = (to - from + 1);
NumberOfFileParts++;
if (needType == "source")
{
BytesTransfered += length;
return synchronizingFile;
}
if (needType == "seed")
{
var limitedStream = new NarrowedStream(localFile, from, to);
limitedStream.CopyTo(synchronizingFile, StorageConstants.MaxPageSize);
BytesCopied += length;
return Stream.Null; // we can return Stream.Null because 'seed' part is always empty
}
throw new ArgumentException(string.Format("Invalid need type: '{0}'", needType));
}
public static Task CopyToAsync(this Stream self, Stream destination, long from, long to)
{
var limitedStream = new NarrowedStream(self, from, to);
return limitedStream.CopyToAsync(destination, StorageConstants.MaxPageSize);
}
