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| author | Nathaniel J. Smith <njs@pobox.com> | 2012-09-07 10:49:45 +0100 |
|---|---|---|
| committer | Nathaniel J. Smith <njs@pobox.com> | 2012-09-07 10:49:45 +0100 |
| commit | a16f387350c9524c45ca36ff26dbb2c431d9dc41 (patch) | |
| tree | 28fccf80bde2d5e9da633d81ef7f42a0a2ebbfc6 /numpy | |
| parent | a744f3cd24d2ad920f311dc58878a861599bd01b (diff) | |
| download | numpy-a16f387350c9524c45ca36ff26dbb2c431d9dc41.tar.gz | |
FIX: loosen numerical tolerance in test_pareto()
The problem was that in 32bit Ubuntu 12.04, one gets the following:
>
/home/njs/numpy/.tox/py27/local/lib/python2.7/site-packages/numpy/random/tests/test_random.py(363)test_pareto()
-> np.testing.assert_array_almost_equal(actual, desired, decimal=15)
(Pdb) actual[1, 0]
52828779.702948704
(Pdb) desired[1, 0]
52828779.702948518
and the test was comparing the numbers to 1e-14, which obviously
failed.
Fixes #424.
Diffstat (limited to 'numpy')
| -rw-r--r-- | numpy/random/tests/test_random.py | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/numpy/random/tests/test_random.py b/numpy/random/tests/test_random.py index 7d9163e61..ee40cce69 100644 --- a/numpy/random/tests/test_random.py +++ b/numpy/random/tests/test_random.py @@ -360,7 +360,13 @@ class TestRandomDist(TestCase): desired = np.array([[ 2.46852460439034849e+03, 1.41286880810518346e+03], [ 5.28287797029485181e+07, 6.57720981047328785e+07], [ 1.40840323350391515e+02, 1.98390255135251704e+05]]) - np.testing.assert_array_almost_equal(actual, desired, decimal=15) + # For some reason on 32-bit x86 Ubuntu 12.10 the [1, 0] entry in this + # matrix differs by 24 nulps. Discussion: + # http://mail.scipy.org/pipermail/numpy-discussion/2012-September/063801.html + # Consensus is that this is probably some gcc quirk that affects + # rounding but not in any important way, so we just use a looser + # tolerance on this test: + np.testing.assert_array_almost_equal_nulp(actual, desired, nulp=30) def test_poisson(self): np.random.seed(self.seed) |