BUG: fix percentage reporting when testing.assert_allclose fails.

2 files changed, 6 insertions, 1 deletions

diff --git a/numpy/testing/tests/test_utils.py b/numpy/testing/tests/test_utils.py
index aa0a2669f..c1d0e83da 100644
--- a/numpy/testing/tests/test_utils.py
+++ b/numpy/testing/tests/test_utils.py
@@ -449,6 +449,11 @@ class TestAssertAllclose(unittest.TestCase):
         # Should not raise:
         assert_allclose(a, a)
 
+    def test_report_fail_percentage(self):
+        a = np.array([1, 1, 1, 1])
+        b = np.array([1, 1, 1, 2])
+        with self.assertRaisesRegexp(AssertionError, "25.0%"):
+            assert_allclose(a, b)
 
 class TestArrayAlmostEqualNulp(unittest.TestCase):
     @dec.knownfailureif(True, "Github issue #347")
diff --git a/numpy/testing/utils.py b/numpy/testing/utils.py
index bd184d922..71c7145f9 100644
--- a/numpy/testing/utils.py
+++ b/numpy/testing/utils.py
@@ -1289,7 +1289,7 @@ def assert_allclose(actual, desired, rtol=1e-7, atol=0,
     """
     import numpy as np
     def compare(x, y):
-        return np.allclose(x, y, rtol=rtol, atol=atol)
+        return np.core.numeric._allclose_points(x, y, rtol=rtol, atol=atol)
 
     actual, desired = np.asanyarray(actual), np.asanyarray(desired)
     header = 'Not equal to tolerance rtol=%g, atol=%g' % (rtol, atol)