Express coverage results in README

[rdflib]

Express coverage results in README

[ashleysommer]

@nicholascar Do you mean code coverage stats in the sense of what proportion of code is touched during testing? That is something I've had in mind for a while, I can include it in the next release.

[nicholascar]

Yes. Perhaps using coverage.py

[ashleysommer]

Pycharm has coverage.py capabilities built in, I'm just using that for now.
As part of the 0.9.9 release I've fixed some coverage issues, added a bunch more tests, and got reported coverage up to 84%.
I've manually added a coverage tag to the README with "84%" hardcoded in the tag. If we want a dynamically updating one, we will need to deploy the coverage test to an online service like Travis, where we can always point to the results of the most recent coverage test run.

[wrobell]

If the project recommends use of pytest, then it can show coverage after running unit tests. Just put something like the following into the setup.cfg project

[pytest]
addopts=--cov=pyshacl

[coverage:report]
show_missing=1
partial_branches=1