public void ReaderIsNotActiveIfNoChunks()
{
using (ChunksReader chunksReader = new ChunksReader(Environment.ProcessorCount, _fileReaderMock.Object,
_gzipCompressMock.Object, _fileWriterTaskMock.Object, _errorLogsMock.Object))
{
Assert.IsFalse(chunksReader.IsActive());
}
}
public void EmptyStreamProducesNoChunks()
{
var inputStream = new MemoryStream();
var pipe = new PipeMock();
var reader = new ChunksReader(pipe, chunkSize: 8, logger: new LoggerMock());
reader.ReadFromStream(inputStream, new CancellationToken());
Assert.Empty(pipe.Chunks);
}
public void SmallFileFitsInOneChunk()
{
var bytes = new byte[] { 0x11, 0x22, 0x33, 0x42 };
var inputStream = new MemoryStream(bytes);
var pipe = new PipeMock();
var reader = new ChunksReader(pipe, chunkSize: 8, logger: new LoggerMock());
reader.ReadFromStream(inputStream, new CancellationToken());
Assert.Single(pipe.Chunks);
Assert.Equal(bytes, pipe.Chunks[0].Bytes);
}
public void BigFileFitsInSeveralChunks()
{
var bytes = new byte[] { 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, 0x88, 0x99, 0xAA, 0xBB };
var inputStream = new MemoryStream(bytes);
var pipe = new PipeMock();
var reader = new ChunksReader(pipe, chunkSize: 8, logger: new LoggerMock());
reader.ReadFromStream(inputStream, new CancellationToken());
Assert.Equal(2, pipe.Chunks.Count);
Assert.Equal(8, pipe.Chunks[0].Bytes.Length);
Assert.Equal(3, pipe.Chunks[1].Bytes.Length);
Assert.Equal(1, pipe.Chunks[1].Index);
Assert.True(pipe.WasClosed);
}
public void WriterTaskExecutesWhenAddingChunkToQueue()
{
_fileReaderMock.Setup(x => x.GetChunkBytes(It.IsAny <ChunkReadInfo>())).Returns(It.IsAny <byte[]>());
_gzipCompressMock.Setup(x => x.Execute(It.IsAny <byte[]>())).Returns(It.IsAny <byte[]>());
_fileWriterTaskMock.Setup(x => x.AddChunk(It.IsAny <int>(), It.IsAny <ChunkWriteInfo>()));
using (ChunksReader chunksReader = new ChunksReader(Environment.ProcessorCount, _fileReaderMock.Object,
_gzipCompressMock.Object, _fileWriterTaskMock.Object, _errorLogsMock.Object))
{
chunksReader.EnqueueChunk(new ChunkReadInfo(It.IsAny <int>(), It.IsAny <long>(), It.IsAny <int>()));
Thread.Sleep(100);
_fileWriterTaskMock.Verify(x => x.AddChunk(It.IsAny <int>(), It.IsAny <ChunkWriteInfo>()), Times.Once);
}
}
public void ReaderReturnsErrorIfReaderFails()
{
_fileReaderMock.Setup(x => x.GetChunkBytes(It.IsAny <ChunkReadInfo>())).Throws(new ReaderException("An unexpected error occurred"));
_gzipCompressMock.Setup(x => x.Execute(It.IsAny <byte[]>())).Returns(It.IsAny <byte[]>());
_fileWriterTaskMock.Setup(x => x.AddChunk(It.IsAny <int>(), It.IsAny <ChunkWriteInfo>()));
using (ChunksReader chunksReader = new ChunksReader(Environment.ProcessorCount, _fileReaderMock.Object,
_gzipCompressMock.Object, _fileWriterTaskMock.Object, _errorLogsMock.Object))
{
chunksReader.EnqueueChunk(new ChunkReadInfo(It.IsAny <int>(), It.IsAny <long>(), It.IsAny <int>()));
Thread.Sleep(100);
_fileReaderMock.Verify(x => x.GetChunkBytes(It.IsAny <ChunkReadInfo>()), Times.Once);
_gzipCompressMock.Verify(x => x.Execute(It.IsAny <byte[]>()), Times.Never);
}
}
