Have pre-commit run as part of running tests via tox

Makefile

@@ -4,12 +4,12 @@ REBUILD_FLAG =
 all: venv test
 
 .PHONY: venv
-venv: .venv.touch
+venv: .venv.touch install-hooks
 	tox -e venv $(REBUILD_FLAG)
 
 .PHONY: tests test
 tests: test
-test: .venv.touch
+test: .venv.touch install-hooks
 	tox $(REBUILD_FLAG)
 
 .venv.touch: setup.py requirements-dev.txt

tox.ini

@@ -10,6 +10,8 @@ setenv =
      PYTHONPATH = .:{envdir}
 commands=
     py.test
+    pre-commit install -f --install-hooks
+    pre-commit run --all-files
 
 [testenv:pre-commit]
 basepython=python3.6