Tweak coverage report

Author: zerolab

tox.ini

@@ -49,7 +49,19 @@ install_command = python -Im pip install -U --pre {opts} {packages}
 
 allowlist_externals = pytest
 commands_pre = python -I {toxinidir}/tests/manage.py migrate
-commands = python -Im pytest --cov --cov-append --ignore=docs/ {posargs: -vv}
+commands = python -Im pytest --cov --cov-append --cov-report= --ignore=docs/ {posargs: -vv}
+
+[testenv:report]
+deps = coverage
+skip_install = true
+commands =
+    coverage report
+    coverage html
+
+[testenv:clean]
+deps = coverage
+skip_install = true
+commands = coverage erase
 
 [testenv:interactive]
 description = An interactive environment for local testing purposes