document test_expression_interpolate_escapebehavior

Author: mr-c

tests/test_examples.py

@@ -198,6 +198,7 @@ def test_expression_interpolate_failures(pattern: str) -> None:
 def test_expression_interpolate_escapebehavior(
     pattern: str, expected: str, behavior: int
 ) -> None:
+    """Test escaping behavior in an interpolation context."""
     assert (
         expr.interpolate(pattern, interpolate_input, escaping_behavior=behavior)
         == expected