Static coverage contexts

[tkukushkin]

Hi!

I use coverage contexts mainly to distinguish coverage from different tox environments with different python version and sometimes different libraries versions.

coverage.py allows it by adding --context {envname} in tox.ini.
On the other hand, pytest-cov only support dynamic contexts with --cov-context=test.

It would be useful if pytest-cov allowed to set static context name through CLI options.

[webknjaz]

Try setting it in .coveragerc

[tkukushkin]

As far as I understand I can't because it depends on a tox environment name.

[tkukushkin]

I found a solution: coverage-py supports environment variable substitution in its config.
So I added the following to .coveragerc:

context = $COVERAGE_CONTEXT

and to tox.ini:

setenv =
  COVERAGE_CONTEXT = {envname}

It works as expected. Thank you for your idea.

[webknjaz]

Ah, I didn't know it resolves env vars.