Pytest, coverage and Makefile tweaks

Makefile

@@ -20,8 +20,17 @@ lint: venv
 test: venv
 	venv/bin/tox
 
+.coverage: venv
+	venv/bin/pytest --cov
+
+build/coverage: .coverage
+	venv/bin/coverage html
+
 push: test lint
 	git diff-index --exit-code HEAD -- # Ensure workdir and index are both clean
 	git push
 
-_PHONY: venv docs dist lint test push
+_PHONY: venv docs dist lint test push clean
+
+clean:
+	rm -rf venv .tox

setup.cfg

 [tool:pytest]
-markers =
-    with_server: Requires a CDStar server
 addopts =
     --cov
-    -m "not with_server"
 
 [coverage:run]
 source =
@@ -13,3 +10,6 @@ source =
 [coverage:report]
 show_missing = true
 
+[coverage:html]
+directory = ./build/coverage/
+