Add tests.

[mlondschien]

No description provided.

[conda-forge-webservices]

Hi! This is the friendly automated conda-forge-linting service.

I just wanted to let you know that I linted all conda-recipes in your PR (recipe/meta.yaml) and found it was in an excellent condition.

[mlondschien]

@xhochy

I just noticed that some imports don't work when installing from conda or pypi. These work if installing with pip install -e . E.g.,

from ivmodels import KClass

or

import ivmodels.tests

What am I doing wrong here?

[mlondschien]

xref mlondschien/ivmodels#117.

This appears to be a problem with my package structure, not conda.