Start on top-level module attribute access regression tests

Author: EliahKagan

test/deprecation/test_attributes.py

@@ -0,0 +1,10 @@
+"""Tests for dynamic and static attribute errors."""
+
+import pytest
+
+import git
+
+
+def test_no_attribute() -> None:
+    with pytest.raises(AttributeError):
+        git.foo