diff --git a/pytest.ini b/pytest.ini
index ce98216..0695cb3 100644
--- a/pytest.ini
+++ b/pytest.ini
@@ -1,3 +1,4 @@
 [pytest]
+addopts= -rsxX -s -v --strict
 filterwarnings =
     error::UserWarning
diff --git a/tests/test_formats.py b/tests/test_formats.py
new file mode 100644
index 0000000..e69de29