add test for pandas-devgh-33559

Author: simonjayhawkins

pandas/tests/extension/base/constructors.py

@@ -38,6 +38,11 @@ def test_series_constructor_no_data_with_index(self, dtype, na_value):
         expected = pd.Series([na_value] * 3, index=[1, 2, 3], dtype=dtype)
         self.assert_series_equal(result, expected)
 
+        # GH 33559 - empty index
+        result = pd.Series(index=[], dtype=dtype)
+        expected = pd.Series([], index=pd.Index([], dtype="object"), dtype=dtype)
+        self.assert_series_equal(result, expected)
+
     def test_series_constructor_scalar_na_with_index(self, dtype, na_value):
         result = pd.Series(na_value, index=[1, 2, 3], dtype=dtype)
         expected = pd.Series([na_value] * 3, index=[1, 2, 3], dtype=dtype)