Install and run:
pip install pytest pytest-instafail pytest-cov pytest-html
pytest -s --cov-report html:reports/coverage --cov=mymath --instafail --html=reports/main/report.html .
Explanation:
-s - output print() results
--cov-report html:reports/coverage --cov=mymath - analyze coverage of mymath module and outpur html report to reports/coverage dir
--html=reports/main/report.html - output test run HTML report to reports/main/report.html
--instafail - if test fails, output it immediately, dont wait until test ends