`covr::package_coverage` fails to find any tests

[roaldarbol]

So I've been trying to figure this out for hours, and I simply cannot figure it out. I started noticing that my test-coverage GH action reported 0% coverage, and it turns out that it returns NULL (you can find the workflow here), and then I tested covr::package_coverage(quiet = FALSE) locally, and it doesn't seem to register any of the tests. This is the repo: https://github.com/animovement/aniread

Testing with testthat::test_dir("tests") and devtools::test() and checking with devtools::check() runs the tests without any issues, it seems to only happen for covr::package_coverage().

I would love to have gotten to a minimal reproducible example, but I simply cannot figure out why this doesn't work. I should mention that it works for all my other R packages. The commit where it changed from a high coverage to 0 coverage also doesn't really seem super informative: animovement/aniread@425ac8d, and the coverage summary. EDIT: The codecov summary mentioned is no longer available as I tried re-starting the repository on codecov.io to no avail.

Any suggestions?