Adjust test

Author: mroeschke

pandas/tests/frame/test_reductions.py

@@ -1853,7 +1853,7 @@ def test_df_empty_min_count_1(self, opname, dtype, exp_dtype):
         df = DataFrame({0: [], 1: []}, dtype=dtype)
         result = getattr(df, opname)(min_count=1)
 
-        expected = Series([np.nan, np.nan], dtype=exp_dtype)
+        expected = Series([np.nan, np.nan], dtype=exp_dtype, index=Index([0, 1]))
         tm.assert_series_equal(result, expected)
 
     @pytest.mark.parametrize(