Check runner.invoke has run successfully in tests#553

nathanjmcdougall merged 12 commits intomainusethis-python/usethis-python:mainfrom

552-dont-use-runnerinvoke-in-tests-without-checking-the-resultusethis-python/usethis-python:552-dont-use-runnerinvoke-in-tests-without-checking-the-resultCopy head branch name to clipboard