Bug#863505: numba: AssertionError in TestTimedeltaArithmeticNoPython.test_mul and others [arm64]

[Daniel Stender]

Source: numba
Version: 0.33.0-1
Severity: serious

https://buildd.debian.org/status/fetch.php?pkg=numba&arch=arm64&ver=0.33.0-1&stamp=1495916190&raw=0

There are a couple of supposedly related test failures on arm64:

<cut>
___________________ TestTimedeltaArithmeticNoPython.test_mul ___________________

self = <numba.tests.test_npdatetime.TestTimedeltaArithmeticNoPython testMethod=test_mul>

    def test_mul(self):
        f = self.jit(mul_usecase)
        def check(a, b, expected):
            self.assertPreciseEqual(f(a, b), expected)
            self.assertPreciseEqual(f(b, a), expected)
    
        # non-int64 int * timedelta64
        check(TD(3), np.uint32(2), TD(6))
        # int * timedelta64
        check(TD(3), 2, TD(6))
        check(TD(3, 'ps'), 2, TD(6, 'ps'))
        check(TD('NaT', 'ps'), 2, TD('NaT', 'ps'))
        # float * timedelta64
        check(TD(7), 1.5, TD(10))
        check(TD(-7), 1.5, TD(-10))
        check(TD(7, 'ps'), -1.5, TD(-10, 'ps'))
        check(TD(-7), -1.5, TD(10))
        check(TD('NaT', 'ps'), -1.5, TD('NaT', 'ps'))
>       check(TD(7, 'ps'), float('nan'), TD('NaT', 'ps'))

numba/tests/test_npdatetime.py:328: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
numba/tests/test_npdatetime.py:313: in check
    self.assertPreciseEqual(f(a, b), expected)
numba/tests/support.py:257: in assertPreciseEqual
    self.fail("when comparing %s and %s: %s" % (first, second, failure_msg))
E   AssertionError: when comparing 0 picoseconds and NaT: numpy.timedelta64(0,'ps') != numpy.timedelta64('NaT','ps')
</cut>

<cut>
_______________ TestLoopTypesDatetimeNoPython.test_multiply_dm_m _______________

self = <numba.tests.test_ufuncs.TestLoopTypesDatetimeNoPython testMethod=test_multiply_dm_m>

    def test_template(self):
        fn = _make_ufunc_usecase(ufunc)
>       self._check_loop(fn, ufunc, loop)

numba/tests/test_ufuncs.py:1514: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
numba/tests/test_ufuncs.py:1471: in _check_loop
    self._check_ufunc_with_dtypes(fn, ufunc, letter_types)
numba/tests/test_ufuncs.py:1500: in _check_ufunc_with_dtypes
    ulps=ulps)
numba/tests/support.py:257: in assertPreciseEqual
    self.fail("when comparing %s and %s: %s" % (first, second, failure_msg))
E   AssertionError: when comparing [   -4     0     3 'NaT' 'NaT'     0    -7 'NaT'] and [   -4     0     3 'NaT' 'NaT'     0    -7     0]: numpy.timedelta64('NaT','D') != numpy.timedelta64(0,'D') : ufunc 'multiply' arrays differ ([array([ 1.5,  0. ,  1.5,  nan, -3.5,  0. , -3.5,  nan]), array([   -3,     0,     2, 'NaT', 'NaT',    -3,     2,     0], dtype='timedelta64[D]'), array([   -4,     0,     3, 'NaT', 'NaT',     0,    -7,     0], dtype='timedelta64[D]')]):
E   args: exact
E   expected [   -4     0     3 'NaT' 'NaT'     0    -7 'NaT']
E   got [   -4     0     3 'NaT' 'NaT'     0    -7     0]
</cut>

<cut>
_______________ TestLoopTypesDatetimeNoPython.test_multiply_md_m _______________

self = <numba.tests.test_ufuncs.TestLoopTypesDatetimeNoPython testMethod=test_multiply_md_m>

    def test_template(self):
        fn = _make_ufunc_usecase(ufunc)
>       self._check_loop(fn, ufunc, loop)

numba/tests/test_ufuncs.py:1514: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
numba/tests/test_ufuncs.py:1471: in _check_loop
    self._check_ufunc_with_dtypes(fn, ufunc, letter_types)
numba/tests/test_ufuncs.py:1500: in _check_ufunc_with_dtypes
    ulps=ulps)
numba/tests/support.py:257: in assertPreciseEqual
    self.fail("when comparing %s and %s: %s" % (first, second, failure_msg))
E   AssertionError: when comparing [   -7 'NaT'     3     0     0 'NaT'    -4 'NaT'] and [   -7 'NaT'     3     0     0 'NaT'    -4     0]: numpy.timedelta64('NaT','D') != numpy.timedelta64(0,'D') : ufunc 'multiply' arrays differ ([array([    2, 'NaT',     2,     0,    -3, 'NaT',    -3,     0], dtype='timedelta64[D]'), array([-3.5,  nan,  1.5,  0. ,  0. , -3.5,  1.5,  nan]), array([   -7, 'NaT',     3,     0,     0, 'NaT',    -4,     0], dtype='timedelta64[D]')]):
E   args: exact
E   expected [   -7 'NaT'     3     0     0 'NaT'    -4 'NaT']
E   got [   -7 'NaT'     3     0     0 'NaT'    -4     0]
</cut>

-- 
4096R/DF5182C8
Debian Developer (stender at debian.org)
http://www.danielstender.com/