[Debian-astro-maintainers] Bug#1026012: astropy-healpix: FTBFS because of failing test suite

[Timo Röhling]

Source: astropy-healpix
Version: 0.6-1
Severity: serious
Tags: ftbfs

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Dear maintainers,

the new python-hypothesis 6.60 apparently exposed a bug in your package,
causing it to FTBFS and fail the autopkgtest.

Relevant excerpt from the build log:


=================================== FAILURES ===================================
_________________________________ test_vec2pix _________________________________

    @given(nside_pow=integers(0, 29), nest=booleans(),
>          x=floats(-1, 1, allow_nan=False, allow_infinity=False).filter(lambda x: abs(x) > 1e-10),
           y=floats(-1, 1, allow_nan=False, allow_infinity=False).filter(lambda y: abs(y) > 1e-10),
           z=floats(-1, 1, allow_nan=False, allow_infinity=False).filter(lambda z: abs(z) > 1e-10))

astropy_healpix/tests/test_healpy.py:116: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

nside_pow = 2, x = 1.0, y = 1.0, z = 0.5, nest = False

    @given(nside_pow=integers(0, 29), nest=booleans(),
           x=floats(-1, 1, allow_nan=False, allow_infinity=False).filter(lambda x: abs(x) > 1e-10),
           y=floats(-1, 1, allow_nan=False, allow_infinity=False).filter(lambda y: abs(y) > 1e-10),
           z=floats(-1, 1, allow_nan=False, allow_infinity=False).filter(lambda z: abs(z) > 1e-10))
    @settings(max_examples=2000, derandomize=True, deadline=None)
    def test_vec2pix(nside_pow, x, y, z, nest):
        nside = 2 ** nside_pow
        ipix1 = hp_compat.vec2pix(nside, x, y, z, nest=nest)
        ipix2 = hp.vec2pix(nside, x, y, z, nest=nest)
>       assert ipix1 == ipix2
E       assert 42 == 58
E       Falsifying example: test_vec2pix(
E           nside_pow=2, nest=False, x=1.0, y=1.0, z=0.5,
E       )

astropy_healpix/tests/test_healpy.py:124: AssertionError
_________________________________ test_vec2ang _________________________________

    @given(vectors=arrays(float, (3,), elements=floats(-1, 1)).filter(not_at_origin),
>          lonlat=booleans(), ndim=integers(0, 4))

astropy_healpix/tests/test_healpy.py:210: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

vectors = array([  1.00000000e+00,  -2.22044605e-16,   1.00000000e+00])
lonlat = False, ndim = 0

    @given(vectors=arrays(float, (3,), elements=floats(-1, 1)).filter(not_at_origin),
           lonlat=booleans(), ndim=integers(0, 4))
    @settings(max_examples=500, derandomize=True, deadline=None)
    def test_vec2ang(vectors, lonlat, ndim):
        vectors = np.broadcast_to(vectors, (2,) * ndim + (3,))
        theta1, phi1 = hp_compat.vec2ang(vectors, lonlat=lonlat)
        theta2, phi2 = hp.vec2ang(vectors, lonlat=lonlat)
        # Healpy sometimes returns NaNs for phi (somewhat incorrectly)
        phi2 = np.nan_to_num(phi2)
        assert_allclose(theta1, theta1, atol=1e-10)
>       assert_allclose(phi1, phi2, atol=1e-10)
E       AssertionError: 
E       Not equal to tolerance rtol=1e-07, atol=1e-10
E       
E       Mismatched elements: 1 / 1 (100%)
E       Max absolute difference: 6.283185307179586
E       Max relative difference: 1.0
E        x: array([ 0.])
E        y: array([ 6.283185])
E       Falsifying example: test_vec2ang(
E           vectors=array([  1.00000000e+00,  -2.22044605e-16,   1.00000000e+00]),
E           lonlat=False,
E           ndim=0,
E       )

astropy_healpix/tests/test_healpy.py:219: AssertionError
=============================== warnings summary ===============================
astropy_healpix/conftest.py:50
  /<<PKGBUILDDIR>>/.pybuild/cpython3_3.10_astropy-healpix/build/astropy_healpix/conftest.py:50: AstropyDeprecationWarning: The enable_deprecations_as_exceptions function is deprecated and may be removed in a future version.
          Use https://docs.pytest.org/en/stable/warnings.html instead.
    enable_deprecations_as_exceptions()

.pybuild/cpython3_3.10_astropy-healpix/build/astropy_healpix/tests/test_core.py::test_interpolate_bilinear_invalid
  /<<PKGBUILDDIR>>/.pybuild/cpython3_3.10_astropy-healpix/build/astropy_healpix/core.py:605: RuntimeWarning: invalid value encountered in bilinear_interpolation_weights
    result = _core.bilinear_interpolation_weights(lon, lat, nside)

.pybuild/cpython3_3.10_astropy-healpix/build/astropy_healpix/tests/test_core.py::test_interpolate_bilinear_invalid
  /<<PKGBUILDDIR>>/.pybuild/cpython3_3.10_astropy-healpix/build/astropy_healpix/core.py:570: RuntimeWarning: invalid value encountered in ring_to_nested
    return _core.ring_to_nested(ring_index, nside)

- -- Docs: https://docs.pytest.org/en/stable/how-to/capture-warnings.html
=========================== short test summary info ============================
FAILED astropy_healpix/tests/test_healpy.py::test_vec2pix - assert 42 == 58
FAILED astropy_healpix/tests/test_healpy.py::test_vec2ang - AssertionError: 
================== 2 failed, 115 passed, 3 warnings in 47.44s ==================


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