Enable DeprecationWarnings during tests

1 files changed, 18 insertions, 0 deletions

diff --git a/tests/conftest.py b/tests/conftest.py
new file mode 100644
index 00000000..a0c21a84
--- /dev/null
+++ b/tests/conftest.py
@@ -0,0 +1,18 @@
+# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0
+# For details: https://bitbucket.org/ned/coveragepy/src/default/NOTICE.txt
+
+"""
+Pytest auto configuration.
+
+This module is run automatically by pytest, to define and enable fixtures.
+"""
+
+import pytest
+import warnings
+
+
+@pytest.fixture(autouse=True)
+def set_warnings():
+    """Enable DeprecationWarnings during all tests."""
+    warnings.simplefilter("default")
+    warnings.simplefilter("once", DeprecationWarning)