Run rails db:migrate to create the DB
Run rails test to run the Minitest test suite
Check the coverage report: ~35%
Run RAILS_ENV=test rails coverband:coverage_server to start the Coverband server in one terminal
Run yarn install to install Cypress
Run rails cypress:run to run Cypress tests
Run rails simplecov_json_report to extract the code coverage from Coveband into a cypress_coverage.json (note that this command will show ~74% coverage, but it's not filtering files we don't want to count for the real coverage)
Run rails coverage:merge to merge both Minitest and Cypress results into one
Check the coverage report: ~52%
NOTE: Use RAILS_ENV=test rails coverband:clear to clear Coverband's coverage if needed