Write unit tests for graph enrichment function

[cthoyt]

It's nice that we can serialize the entirety of a database to a BEL file, but often, we only want the parts that are relevant to a pre-existing BEL network. We need a function that extracts the proteins from a BEL network, queries the database for them, finds their InterPro entries, and adds them to the BEL graph

1. Read the documentation on the BELGraph data model
2. Write unit tests that have a small graph (built in python code)

[aramgrigoryan]

interesting, should be my starting point for next steps i guess

[aramgrigoryan]

def enrich_proteins(graph):
    """Adds the InterPro annotations for proteins in the graph

    :param pybel.BELGraph graph: A BEL Graph
    """
    raise NotImplemented

is not implemented, so this is what you mean? here it should get the bel script file that we've generated and create a belgraph ?

[cthoyt]

In test-driven development it's common to make the method stub and have it raise not implemented. Check the corresponding unit tests to see how it should work (i already wrote them for you)

[aramgrigoryan]

i don't understand what should be done here. can you show me an example?
basically i dont know the input and the output