Add test to check the error path for an illegal include keyword parameter value

Author: roberthdevries

pandas/io/pytables.py

@@ -609,7 +609,7 @@ def keys(self, include: Optional[str] = "pandas") -> List[str]:
                 n._v_pathname for n in self._handle.walk_nodes("/", classname="Table")
             ]
         raise ValueError(
-            f"`include` should be either 'pandas' or 'native' but is [{include}]"
+            f"`include` should be either 'pandas' or 'native' but is '{include}'"
         )
 
     def __iter__(self):

pandas/tests/io/pytables/test_store.py

@@ -318,6 +318,14 @@ class Table3(tables.IsDescription):
                 assert set(store.keys(include="native")) == expected
                 assert set(store.keys(include="pandas")) == set()
 
+    def test_keys_illegal_include_keyword_value(self, setup_path):
+        with ensure_clean_store(setup_path) as store:
+            with pytest.raises(
+                ValueError,
+                match="`include` should be either 'pandas' or 'native' but is 'illegal'",
+            ):
+                store.keys(include="illegal")
+
     def test_keys_ignore_hdf_softlink(self, setup_path):
 
         # GH 20523