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TST: Ignore exp FP exceptions test for glibc ver < 2.17 #19233

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Merged
merged 5 commits into from
Jun 13, 2021
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TST: Ignore exp FP exceptions test for glibc ver < 2.17 #19233

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TST: Ignore exp FP exceptions test for glibc ver < 2.17
r-devulap Jun 9, 2021
45a322c
BUG: Do not use bare except
r-devulap Jun 9, 2021
9ad1ccb
TST: Use conditional xfail
r-devulap Jun 11, 2021
58805d7
TST: 2 blank lines after class def
r-devulap Jun 11, 2021
1342b96
TST: Getting rid of print
r-devulap Jun 12, 2021
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19 changes: 19 additions & 0 deletions numpy/core/tests/test_umath.py
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Original file line number Diff line number Diff line change
Expand Up @@ -4,6 +4,7 @@
import itertools
import pytest
import sys
import os
from fractions import Fraction
from functools import reduce

Expand All @@ -17,6 +18,20 @@
_gen_alignment_data, assert_array_almost_equal_nulp, assert_warns
)

def get_glibc_version():
try:
ver = os.confstr('CS_GNU_LIBC_VERSION').rsplit(' ')[1]
except Exception as inst:
ver = '0.0'

return ver


glibcver = get_glibc_version()
glibc_newerthan_2_17 = pytest.mark.xfail(
glibcver != '0.0' and glibcver < '2.17',
reason="Older glibc versions may not raise appropriate FP exceptions")

def on_powerpc():
""" True if we are running on a Power PC platform."""
return platform.processor() == 'powerpc' or \
Expand Down Expand Up @@ -986,6 +1001,10 @@ def test_exp_values(self):
yf = np.array(y, dtype=dt)
assert_equal(np.exp(yf), xf)

# Older version of glibc may not raise the correct FP exceptions
# See: https://github.com/numpy/numpy/issues/19192
@glibc_newerthan_2_17
def test_exp_exceptions(self):
with np.errstate(over='raise'):
assert_raises(FloatingPointError, np.exp, np.float32(100.))
assert_raises(FloatingPointError, np.exp, np.float32(1E19))
Expand Down