obvious mistake, we need a match on the GenNode ID,
so the key of the attribute binding must use the same symbol
...now the test fails at when hitting unimplemented stuff,
i.e. here the missing failure check
the idea is again to perform the same sequence of primitives,
this time with a binding to some local variables within the test function
here to enact the role of "object fields"
together with drafting the first segment of the test code,
I've settled down onto an implementation approach