Run tests with PYTHONWARNDEFAULTENCODING for visibility of warnings such as those reported in #195.

jaraco · jaraco · commit 0c4d991bdaf2 · 2023-06-26T20:23:39.000-04:00
diff --git a/tox.ini b/tox.ini
@@ -1,8 +1,11 @@
 [tox]
 envlist=py{37,38,39,310,311,pypy37},docs,linting
 isolated_build = true
+
 [testenv]
 usedevelop=true
+setenv =
+    PYTHONWARNDEFAULTENCODING = 1
 deps=
     pytest
     pytest-timeout
