public void Bytes_get_should_throw_when_subject_is_disposed()
{
var subject = new ByteArrayChunk(1);
subject.Dispose();
Action action = () => { var _ = subject.Bytes; };
action.ShouldThrow<ObjectDisposedException>().And.ObjectName.Should().Be("ByteArrayChunk");
}
public void constructor_with_size_should_initialize_subject(
[Values(1, 2, 16)]
int size)
{
var subject = new ByteArrayChunk(size);
var segment = subject.Bytes;
segment.Array.Should().NotBeNull();
segment.Offset.Should().Be(0);
segment.Count.Should().Be(size);
}
public void Bytes_get_should_return_expected_result()
{
var size = 1;
var bytes = new byte[size];
var subject = new ByteArrayChunk(bytes);
var result = subject.Bytes;
result.Array.Should().BeSameAs(bytes);
result.Offset.Should().Be(0);
result.Count.Should().Be(size);
}
public void constructor_with_bytes_should_initialize_subject(
[Values(1, 2, 16)]
int size)
{
var bytes = new byte[size];
var subject = new ByteArrayChunk(bytes);
var segment = subject.Bytes;
segment.Array.Should().BeSameAs(bytes);
segment.Offset.Should().Be(0);
segment.Count.Should().Be(size);
}
/// <inheritdoc/>
public IBsonChunk GetChunk(int requestedSize)
{
if (requestedSize <= 0)
{
throw new ArgumentOutOfRangeException("requestedSize");
}
ThrowIfDisposed();
IBsonChunk chunk;
if (_previousChunkSize == 0 && _initialUnpooledChunkSize != 0)
{
chunk = new ByteArrayChunk(_initialUnpooledChunkSize);
}
else
{
var powerOf2Size = PowerOf2.RoundUpToPowerOf2(_previousChunkSize + 1);
var chunkSize = Math.Max(Math.Min(powerOf2Size, _maxChunkSize), _minChunkSize);
chunk = _baseSource.GetChunk(chunkSize);
}
_previousChunkSize = chunk.Bytes.Count;
return(chunk);
}
public void Disposed_can_be_called_more_than_once()
{
var subject = new ByteArrayChunk(1);
subject.Dispose();
subject.Dispose();
}
public Reflector(ByteArrayChunk instance)
{
_instance = instance;
}
public void Fork_should_return_a_new_handle()
{
var subject = new ByteArrayChunk(1);
var result = subject.Fork();
result.Should().NotBeSameAs(subject);
var subjectSegment = subject.Bytes;
var resultSegment = result.Bytes;
resultSegment.Array.Should().BeSameAs(subjectSegment.Array);
resultSegment.Offset.Should().Be(subjectSegment.Offset);
resultSegment.Count.Should().Be(subjectSegment.Count);
}
public void Dispose_should_not_dispose_forked_handle()
{
var subject = new ByteArrayChunk(1);
var forked = subject.Fork();
subject.Dispose();
var reflector = new Reflector((ByteArrayChunk)forked);
reflector._disposed.Should().BeFalse();
}
public void Dispose_should_dispose_subject()
{
var subject = new ByteArrayChunk(1);
subject.Dispose();
var reflector = new Reflector(subject);
reflector._disposed.Should().BeTrue();
}
private IEnumerable<IBsonChunk> CreateChunks(byte[] bytes, IEnumerable<int> chunkSizes)
{
var offset = 0;
foreach (var size in chunkSizes)
{
if (size > 0)
{
var chunk = new ByteArrayChunk(size);
Buffer.BlockCopy(bytes, offset, chunk.Bytes.Array, chunk.Bytes.Offset, size);
yield return chunk;
offset += size;
}
}
}
private MultiChunkBuffer CreateSubject(int size = 0, int? length = null, bool isReadOnly = false)
{
var chunk = new ByteArrayChunk(size);
return new MultiChunkBuffer(new[] { chunk }, length ?? size, isReadOnly);
}
private SingleChunkBuffer CreateSubject(int size = 0, int? length = null, bool isReadOnly = false)
{
var chunk = new ByteArrayChunk(size);
return new SingleChunkBuffer(chunk, length ?? size, isReadOnly);
}
private SingleChunkBuffer CreateSubject(byte[] bytes, int? length = null, bool isReadOnly = false)
{
var chunk = new ByteArrayChunk(bytes);
return new SingleChunkBuffer(chunk, length ?? bytes.Length, isReadOnly);
}
/// <inheritdoc/>
public IBsonChunk GetChunk(int requestedSize)
{
if (requestedSize <= 0)
{
throw new ArgumentOutOfRangeException("requestedSize");
}
ThrowIfDisposed();
IBsonChunk chunk;
if (_previousChunkSize == 0 && _initialUnpooledChunkSize != 0)
{
chunk = new ByteArrayChunk(_initialUnpooledChunkSize);
}
else
{
var powerOf2Size = PowerOf2.RoundUpToPowerOf2(_previousChunkSize + 1);
var chunkSize = Math.Max(Math.Min(powerOf2Size, _maxChunkSize), _minChunkSize);
chunk = _baseSource.GetChunk(chunkSize);
}
_previousChunkSize = chunk.Bytes.Count;
return chunk;
}
