tox: run tests with python warnings enabled

This allows to see deprecation warnings.

Signed-off-by: Robin Jarry <robin.jarry@6wind.com>

Author: rjarry

tox.ini

@@ -14,14 +14,14 @@ setenv =
 	master: LIBYANG_BRANCH=master
 	devel: LIBYANG_BRANCH=devel
 install_command = {toxinidir}/tox-install.sh {envdir} {opts} {packages}
-commands = python -m unittest discover -c
+commands = python -Wd -m unittest discover -c
 
 [testenv:coverage]
 changedir = .
 deps = coverage
 install_command = {toxinidir}/tox-install.sh {envdir} {opts} {packages}
 commands =
-	python -m coverage run -m unittest discover -c tests/
+	python -Wd -m coverage run -m unittest discover -c tests/
 	python -m coverage report
 	python -m coverage html
 	python -m coverage xml