fix errors

Author: topper-123

pandas/tests/indexes/numeric/test_numeric.py

@@ -106,11 +106,6 @@ def test_constructor(self, dtype):
         result = index_cls(np.array([np.nan]), dtype=dtype)
         assert pd.isna(result.values).all()
 
-        result = Index(np.array([np.nan], dtype=dtype))
-        assert isinstance(result, index_cls)
-        assert result.dtype == dtype
-        assert pd.isna(result.values).all()
-
     def test_constructor_invalid(self):
         index_cls = self._index_cls
         cls_name = index_cls.__name__
@@ -290,6 +285,14 @@ def dtype(self, request):
     def invalid_dtype(self, request):
         return request.param
 
+    def test_constructor_from_base_index(self, dtype):
+        index_cls = self._index_cls
+
+        result = Index(np.array([np.nan], dtype=dtype))
+        assert isinstance(result, index_cls)
+        assert result.dtype == dtype
+        assert pd.isna(result.values).all()
+
     def test_constructor_32bit(self, dtype):
         index_cls = self._index_cls