public void WhenMaxAllowedWriteStreamBytesPassedWriteStreamIsConvertedToReadStream()
{
var forwardableCurrentDateTimeSource = new ForwardableCurrentDateTimeSource(DateTime.Now);
long convertedWriteStreamBytes = 0;
using (var rollingMemory = (new RollingMemoryBuilder())
.SetupStreamLifecycleImplementation(
CreateMemoryWriteStreamFactory(null),
CreateMemoryWriteStreamToReadStreamConverter(stream => convertedWriteStreamBytes += stream.Length),
CreateMemoryStreamDataSourceDisposerFactory(null),
CreateMemoryStreamDataSourceDisposerFactory(null))
.SetStreamLifecycleThresholds(
2,
null,
null)
.SetCurrentDateTimeSource(
forwardableCurrentDateTimeSource).Build())
{
var testData = new byte[] { 1, 2, 3, 4 };
rollingMemory.WriteStream.Write(testData, 0, testData.Length);
Assert.IsTrue(convertedWriteStreamBytes >= 2);
}
}
public void WhenMaxUnavailableAgeNotPassedDataIsUnavailable()
{
var forwardableCurrentDateTimeSource = new ForwardableCurrentDateTimeSource(DateTime.Now);
int readCount;
using (var rollingMemory = (new RollingMemoryBuilder())
.SetupStreamLifecycleImplementation(
CreateMemoryWriteStreamFactory(null),
CreateMemoryWriteStreamToReadStreamConverter(null),
CreateMemoryStreamDataSourceDisposerFactory(null),
CreateMemoryStreamDataSourceDisposerFactory(null))
.SetStreamLifecycleThresholds(
null,
TimeSpan.FromSeconds(1),
null)
.SetCurrentDateTimeSource(
forwardableCurrentDateTimeSource).Build())
{
var testData = new byte[] { 1, 2, 3, 4 };
rollingMemory.WriteStream.Write(testData, 0, testData.Length);
var readResult = new byte[testData.Length];
readCount = rollingMemory.ReadStream.Read(readResult, 0, readResult.Length);
}
Assert.AreEqual(0, readCount);
}
public void WhenReadStreamTemporarilyUnavailableReturnsFewerBytes()
{
var forwardableCurrentDateTimeSource = new ForwardableCurrentDateTimeSource(DateTime.Now);
int readCount = 0;
var writeStreamToReadStreamConverterMock = new Mock<IWriteStreamToReadStreamConverter>();
writeStreamToReadStreamConverterMock.Setup(writeStreamToReadStreamConverter
=> writeStreamToReadStreamConverter.ConvertWriteStreamToReadStream(It.Is<Stream>(stream => stream is MemoryStream)))
.Returns((Func<Stream, Stream>)(stream =>
{
var memoryStream = stream as MemoryStream;
memoryStream.Position = 0;
var readStreamMock = new Mock<Stream>();
readStreamMock.Setup(readStream => readStream.Read(It.IsAny<byte[]>(), It.IsAny<int>(), It.IsAny<int>()))
.Returns((Func<byte[], int, int, int>)((buffer, offset, count) =>
{
return memoryStream.Read(buffer, offset, Math.Min(1, count));
}));
return readStreamMock.Object;
}));
var readStreamDataSourceDisposerFactoryMock = new Mock<IStreamDataSourceDisposerFactory>();
var readStreamDataSourceDisposerMock = new Mock<IDataSourceDisposer>();
readStreamDataSourceDisposerFactoryMock.Setup(readStreamDataSourceDisposerFactory =>
readStreamDataSourceDisposerFactory.CreateStreamDataSourceDisposer(It.IsAny<Stream>()))
.Returns(readStreamDataSourceDisposerMock.Object);
using (var rollingMemory = (new RollingMemoryBuilder())
.SetupStreamLifecycleImplementation(
CreateMemoryWriteStreamFactory(null),
writeStreamToReadStreamConverterMock.Object,
CreateMemoryStreamDataSourceDisposerFactory(null),
readStreamDataSourceDisposerFactoryMock.Object)
.SetStreamLifecycleThresholds(
null,
null,
0)
.SetCurrentDateTimeSource(
forwardableCurrentDateTimeSource).Build())
{
var testData = new byte[] { 1, 2, 3, 4 };
rollingMemory.WriteStream.Write(testData, 0, testData.Length);
var readResult = new byte[testData.Length];
readCount = rollingMemory.ReadStream.Read(readResult, 0, readResult.Length);
readCount += rollingMemory.ReadStream.Read(readResult, readCount, readResult.Length - readCount);
Assert.IsTrue(readResult.Take(readCount).SequenceEqual(new byte[] { 1, 2 }));
}
}
