Fix _assert_caught_expected_warning typing not including tuple of w…

…arnings

pandas/_testing/_warnings.py

@@ -112,20 +112,20 @@ class for all warnings. To raise multiple types of exceptions,
  else tuple(match for i in range(len(expected_warning)))
  )
  for warning_type, warning_match in zip(expected_warning, match):
- _assert_caught_expected_warning(
+ _assert_caught_expected_warnings(
  caught_warnings=w,
  expected_warning=warning_type,
  match=warning_match,
  check_stacklevel=check_stacklevel,
  )
  else:
- expected_warning = cast(type[Warning], expected_warning)
+ expected_warning = cast(type[Warning] | tuple[type[Warning], ...], expected_warning)
  match = (
  "|".join(m for m in match if m)
  if isinstance(match, tuple)
  else match
  )
- _assert_caught_expected_warning(
+ _assert_caught_expected_warnings(
  caught_warnings=w,
  expected_warning=expected_warning,
  match=match,
@@ -150,17 +150,22 @@ def maybe_produces_warning(
  return nullcontext()
 
 
-def _assert_caught_expected_warning(
+def _assert_caught_expected_warnings(
  *,
  caught_warnings: Sequence[warnings.WarningMessage],
- expected_warning: type[Warning],
+ expected_warning: type[Warning] | tuple[type[Warning], ...],
  match: str | None,
  check_stacklevel: bool,
 ) -> None:
  """Assert that there was the expected warning among the caught warnings."""
  saw_warning = False
  matched_message = False
  unmatched_messages = []
+ warning_name = (
+ tuple(x.__name__ for x in expected_warning)
+ if isinstance(expected_warning, tuple)
+ else expected_warning.__name__
+ )
 
  for actual_warning in caught_warnings:
  if issubclass(actual_warning.category, expected_warning):
@@ -177,12 +182,12 @@ def _assert_caught_expected_warning(
 
  if not saw_warning:
  raise AssertionError(
- f"Did not see expected warning of class {expected_warning.__name__!r}"
+ f"Did not see expected warning of class {warning_name!r}"
  )
 
  if match and not matched_message:
  raise AssertionError(
- f"Did not see warning {expected_warning.__name__!r} "
+ f"Did not see warning {warning_name!r} "
  f"matching '{match}'. The emitted warning messages are "
  f"{unmatched_messages}"
  )