TST: Use pytest.raises match parameter in test_missing_required_dependency

Author: chilin0525

pandas/tests/test_downstream.py

@@ -200,11 +200,9 @@ def mock_import(name, *args, **kwargs):
 
     monkeypatch.setattr("builtins.__import__", mock_import)
 
-    with pytest.raises(ImportError) as excinfo:
+    with pytest.raises(ImportError, match=dependency):
         importlib.reload(importlib.import_module("pandas"))
 
-    assert dependency in str(excinfo.value)
-
 
 def test_frame_setitem_dask_array_into_new_col(request):
     # GH#47128