Raise warnings produced by isodate as errors during tests

2 files changed, 5 insertions, 0 deletions

diff --git a/src/isodate/tests/__init__.py b/src/isodate/tests/__init__.py
index b1d46bd..7208cbd 100644
--- a/src/isodate/tests/__init__.py
+++ b/src/isodate/tests/__init__.py
@@ -29,6 +29,7 @@ Collect all test suites into one TestSuite instance.
 '''
 
 import unittest
+import warnings
 from isodate.tests import (test_date, test_time, test_datetime, test_duration,
                            test_strf, test_pickle)
 
@@ -37,6 +38,8 @@ def test_suite():
     '''
     Return a new TestSuite instance consisting of all available TestSuites.
     '''
+    warnings.filterwarnings("error", module=r"isodate(\..)*")
+
     return unittest.TestSuite([
         test_date.test_suite(),
         test_time.test_suite(),
diff --git a/tox.ini b/tox.ini
index 16616ab..29d7b0a 100644
--- a/tox.ini
+++ b/tox.ini
@@ -3,6 +3,8 @@ envlist = py27,py34,py35,py36,pypy,pypy3,flake,cover
 
 [testenv]
 deps =
+setenv =
+    PYTHONWARNINGS = default
 commands =
     {envpython} setup.py test