[Debian-pan-maintainers] Bug#1004706: opentsne: FTBFS on i386, test failure

[Graham Inggs]

Source: opentsne
Version: 0.6.1-2
Severity: serious
Tags: ftbfs

Hi Maintainer

opentsne FTBFS on i386 [1] and this currently blocks migration to
testing. I've copied what I hope is the relevant part of the log
below.

Regards
Graham


[1] https://buildd.debian.org/status/logs.php?pkg=opentsne&arch=i386


=================================== FAILURES ===================================
_________ TestTSNECorrectnessUsingPrecomputedDistanceMatrix.test_iris __________

self = <tests.test_correctness.TestTSNECorrectnessUsingPrecomputedDistanceMatrix
testMethod=test_iris>

    def test_iris(self):
        x = datasets.load_iris().data
        x += np.random.normal(0, 1e-3, x.shape)  # iris contains duplicate rows

        distances = squareform(pdist(x))
        params = dict(initialization="random", random_state=0)
        embedding1 = TSNE(metric="precomputed", **params).fit(distances)
        embedding2 = TSNE(metric="euclidean", **params).fit(x)

>       np.testing.assert_almost_equal(embedding1, embedding2)
E       AssertionError:
E       Arrays are not almost equal to 7 decimals
E
E       Mismatched elements: 300 / 300 (100%)
E       Max absolute difference: 3.4794089
E       Max relative difference: 19.31117662
E        x: TSNEEmbedding([[ -8.8343696,  14.5389743],
E                      [ -6.5431559,  15.9090961],
E                      [ -7.3407737,  16.6576344],...
E        y: TSNEEmbedding([[ -8.8276681,  14.0647152],
E                      [ -6.1690237,  14.5453917],
E                      [ -6.8637968,  15.4036782],...

tests/test_correctness.py:299: AssertionError
=========================== short test summary info ============================
FAILED tests/test_correctness.py::TestTSNECorrectnessUsingPrecomputedDistanceMatrix::test_iris