Added pickle test for polynomials

1 files changed, 6 insertions, 0 deletions

diff --git a/numpy/polynomial/tests/test_polynomial.py b/numpy/polynomial/tests/test_polynomial.py
index 032bf0e76..6b3ef2388 100644
--- a/numpy/polynomial/tests/test_polynomial.py
+++ b/numpy/polynomial/tests/test_polynomial.py
@@ -5,6 +5,7 @@ from functools import reduce
 
 import numpy as np
 import numpy.polynomial.polynomial as poly
+import pickle
 from copy import deepcopy
 from numpy.testing import (
     assert_almost_equal, assert_raises, assert_equal, assert_,
@@ -47,6 +48,11 @@ class TestConstants:
         y = deepcopy(x)
         assert_equal(x, y)
 
+    def test_pickle(self):
+        x = poly.Polynomial([1, 2, 3])
+        y = pickle.loads(pickle.dumps(x))
+        assert_equal(x, y)
+
 class TestArithmetic:
 
     def test_polyadd(self):