Unit testing C++ v8 addon - node.js

Question

We are writing a v8 addon for node.js.
The addon (as you may well know) is a C++ dll.
How do we unit test this?
The simple way is to use node.js scripts to call our exported functions from the addon dll. But this is not a true unit test, as it's across languages.
Has anyone managed to successfully write a C++ unit test for their addon dll?
We have tried, but are getting unexpected errors - we suspect this is because the node-gyp libraries expect everything to be called in the context of node.exe, and because our unit test uses the addon dll "standalone", some things are not getting setup correctly, causing the test to fall over.
If you have managed to use C++ unit tests for v8 addon, please can you detail the best way to do it, and things to look out for?
regards,
Stretch

Answer 1

I was thinking about this, too. But unless you have really lot's of cpp-logic it's perfectly fine to just write cpp-js-combination and unit test the js-implementation as can be observed in the Nan-library, here. Having less logic means here, that the cpp-implementation in the best case is anyhow just the API glue.
When you do have custom logic and write Nan#2-style classes (so, straightforward cpp) you can of course test it the like regular cpp by including it's headers and do some...
void testEquality()
{
CPPUNIT_ASSERT( /* some test*/ );
}