test: restore 100% coverage — cover the 46 snapshot.py branches left untested by #226#247

pranavz28 merged 2 commits into

masterpercy/percy-selenium-python:masterfrom

PER-9772_fix-coverage-on-cli-from-gitpercy/percy-selenium-python:PER-9772_fix-coverage-on-cli-from-gitCopy head branch name to clipboard