public void Position_Is_Updated_Correctly_During_Writes()
{
var count = 100;
var ms = new ConcurrentStream(new MemoryStream());
var validGuids = _GenerateCaptureService(count);
var captureStream = new CaptureStream(ms, FileAccess.Write, _StateResolver);
for (int i = 0; i < count; i++)
{
var mock = new Mock<ICaptureState>();
mock.Setup(p => p.Guid).Returns(validGuids[i]);
mock.Setup(p => p.Data).Returns(Guid.NewGuid().ToByteArray());
captureStream.Write(mock.Object);
Assert.Equal(i + 1, captureStream.Position);
}
}
public void CaptureStream_Supports_Writing_A_State_And_Then_Reading_It()
{
var stateController = new WeatherStateController(new WeatherSimulator());
var stateResolver = new StateResolver();
stateResolver.Add(stateController);
var baseStream = new ConcurrentStream(new MemoryStream());
var captureStream = new CaptureStream(baseStream, FileAccess.ReadWrite, stateResolver);
Assert.True(captureStream.CanRead);
Assert.True(captureStream.CanWrite);
//write a state then read it back
var expectedBytes = Guid.NewGuid().ToByteArray();
captureStream.Write(new WeatherCaptureState(expectedBytes, stateController.Guid, DateTime.UtcNow, 0));
//the read pointer is still at the start of the stream
var readState = captureStream.Read();
for (int i = 0; i < readState.Data.Length; i++)
{
Assert.Equal(expectedBytes[i], readState.Data[i]);
}
}