internal static Exception DecodeException(string encodedException)
{
using (var stream = new MemoryStream(Convert.FromBase64String(encodedException)))
using (var reader = new BinaryReader(stream))
{
var actualException = AbstractEndPoint.ReadException(reader);
return(actualException);
}
}
internal static string EncodeException(Exception exception)
{
using (var stream = new MemoryStream())
using (var writer = new BinaryWriter(stream))
{
AbstractEndPoint.WriteException(writer, exception);
var length = (int)stream.Length;
var data = stream.GetBuffer();
var encodedException = Convert.ToBase64String(data, 0, length);
return(encodedException);
}
}
public void TestEncodeException()
{
var exception = new ArgumentNullException("whatever");
string encoded = null;
new Action(() => encoded = OutOfProcessSiloServer.EncodeException(exception))
.Should().NotThrow();
encoded.Should().NotBeNull();
encoded.Length.Should().BeGreaterThan(0);
using (var stream = new MemoryStream(Convert.FromBase64String(encoded)))
using (var reader = new BinaryReader(stream))
{
var actualException = AbstractEndPoint.ReadException(reader);
actualException.Should().NotBeNull();
actualException.Should().BeOfType <ArgumentNullException>();
actualException.Message.Should().Be(exception.Message);
}
}
public void TestPreserveRemoteStacktrace()
{
using (var stream = new MemoryStream())
{
using (var writer = new BinaryWriter(stream, Encoding.UTF8, true))
{
try
{
throw new Exception();
}
catch (Exception e)
{
AbstractEndPoint.WriteException(writer, e);
}
}
stream.Position = 0;
using (var reader = new BinaryReader(stream))
{
try
{
throw AbstractEndPoint.ReadException(reader);
}
catch (Exception e)
{
var property = e.GetType().GetProperty("RemoteStackTrace", BindingFlags.NonPublic | BindingFlags.Instance);
var remoteStackTrace = (string)property.GetValue(e);
remoteStackTrace.Should().NotBeEmpty("because the remote stacktrace of the exception should've been preserved");
var stacktrace = e.StackTrace;
stacktrace.Should().Contain(remoteStackTrace, "because the remote stacktrace should be part of the actual stacktrace to allow for easier debugging of distributed applications (I want to know where it crashed on the server)");
}
}
}
}