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authorJulian Taylor <jtaylor.debian@googlemail.com>2014-09-05 00:57:48 +0200
committerJulian Taylor <jtaylor.debian@googlemail.com>2014-09-05 00:57:48 +0200
commit859d2f13c6a603c904701f509bd0bc52efb31295 (patch)
tree91470cb38ed7a498b19eb45e88f05965f061ac7b
parent90cac3cb8bb4534f7f760d7fc3f82cdf0d517524 (diff)
parentdfc567790badcc87822a39f5c35f0dd78b8c1599 (diff)
downloadnumpy-859d2f13c6a603c904701f509bd0bc52efb31295.tar.gz
Merge pull request #5048 from juliantaylor/subclass-test-fix
BUG: fix array_almost_equal for array subclasses
-rw-r--r--numpy/testing/tests/test_utils.py8
-rw-r--r--numpy/testing/utils.py2
2 files changed, 9 insertions, 1 deletions
diff --git a/numpy/testing/tests/test_utils.py b/numpy/testing/tests/test_utils.py
index aa0a2669f..41a48ea65 100644
--- a/numpy/testing/tests/test_utils.py
+++ b/numpy/testing/tests/test_utils.py
@@ -244,6 +244,14 @@ class TestArrayAlmostEqual(_GenericTest, unittest.TestCase):
self.assertRaises(AssertionError,
lambda : self._assert_func(a, b))
+ def test_subclass(self):
+ a = np.array([[1., 2.], [3., 4.]])
+ b = np.ma.masked_array([[1., 2.], [0., 4.]],
+ [[False, False], [True, False]])
+ assert_array_almost_equal(a, b)
+ assert_array_almost_equal(b, a)
+ assert_array_almost_equal(b, b)
+
class TestAlmostEqual(_GenericTest, unittest.TestCase):
def setUp(self):
self._assert_func = assert_almost_equal
diff --git a/numpy/testing/utils.py b/numpy/testing/utils.py
index bd184d922..4f45f62f4 100644
--- a/numpy/testing/utils.py
+++ b/numpy/testing/utils.py
@@ -829,7 +829,7 @@ def assert_array_almost_equal(x, y, decimal=6, err_msg='', verbose=True):
# make sure y is an inexact type to avoid abs(MIN_INT); will cause
# casting of x later.
dtype = result_type(y, 1.)
- y = array(y, dtype=dtype, copy=False)
+ y = array(y, dtype=dtype, copy=False, subok=True)
z = abs(x-y)
if not issubdtype(z.dtype, number):