fail on first failure when testing, this makes debug prints more likely to be visible..

Makefile

@@ -2,7 +2,7 @@ MODULES=bitelab
 VIRTUALENV?=virtualenv-3.8
 
 test:
-	(ls $(MODULES)/*.py | entr sh -c 'python -m coverage run -m unittest $(basename $(MODULES)).testing && coverage report --omit=p/\* -m -i')
+	(ls $(MODULES)/*.py | entr sh -c 'python -m coverage run -m unittest -f $(basename $(MODULES)).testing && coverage report --omit=p/\* -m -i')
 
 env:
 	($(VIRTUALENV) p && . ./p/bin/activate && pip install -r requirements.txt)