Fwd: How to test an Exception marked with SerializableAttribute

Apologies for the earlier, rather lame "Please help me mail".  I'd been up
since 3.20am after the darling daughter let go a startled "Daddy!"  Needless
to say, she was back asleep 30 seconds later and I was still awake come 5.20
!

Serialization is not an area I'm particularly familiar with.  I've come up
with a plan and would appreciate feedback.  I'm looking to avoid a 'Fragile
Test' so please do chip in with any comments.  Basically, I'm serializing a
new instance of the exception into a MemoryStream, resetting the position
and then immediately deserializing it.  Then I perform the Asserts on the
deserialized object.

[Test]

public void BaseException_Serialization()

{

BaseException baseException = new BaseException("Test message", new
ArgumentNullException("NullParam"));

BaseException deserBaseEx;

BinaryFormatter binaryFormatter = new BinaryFormatter();

using (MemoryStream memoryStream = new MemoryStream())

{

binaryFormatter.Serialize(memoryStream, baseException);

baseException = null;

memoryStream.Position = 0;

deserBaseEx = (BaseException)binaryFormatter.Deserialize(memoryStream);

}

Assert.That(deserBaseEx.Message, Is.EqualTo("Test message"));

Assert.That(deserBaseEx.InnerException, Is.InstanceOfType(typeof(
ArgumentNullException)));

Assert.That(((ArgumentNullException)deserBaseEx.InnerException).ParamName,
Is.EqualTo("NullParam"));

Assert.That(deserBaseEx.ComputerName, Is.EqualTo(System.Environment
.MachineName));

}


---------- Forwarded message ----------

I'm building a base exception class and I want to test it but I can't think
how.  The bit I'm having trouble with is the fourth required constructor -
the serializable one.  What's the best way to serialize and deserialize it
within a test?

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