add round test

Author: andrewgsavage

pandas/tests/extension/base/ops.py

@@ -263,3 +263,9 @@ def test_unary_ufunc_dunder_equivalence(self, data, ufunc):
         else:
             alt = ufunc(data)
             tm.assert_extension_array_equal(result, alt)
+
+class BaseRoundingTests:
+    def test_round(self, data):
+        result = pd.Series(data).round()
+        expected = pd.Series([np.round(item) for item in data], dtype = self.dtype)
+        tm.assert_series_equal(result, expected)