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from __future__ import division, absolute_import, print_function
import platform
import numpy as np
from numpy.testing import TestCase, assert_, run_module_suite, dec
class TestErrstate(TestCase):
@dec.skipif(platform.machine() == "armv5tel", "See gh-413.")
def test_invalid(self):
with np.errstate(all='raise', under='ignore'):
a = -np.arange(3)
# This should work
with np.errstate(invalid='ignore'):
np.sqrt(a)
# While this should fail!
try:
np.sqrt(a)
except FloatingPointError:
pass
else:
self.fail("Did not raise an invalid error")
def test_divide(self):
with np.errstate(all='raise', under='ignore'):
a = -np.arange(3)
# This should work
with np.errstate(divide='ignore'):
a // 0
# While this should fail!
try:
a // 0
except FloatingPointError:
pass
else:
self.fail("Did not raise divide by zero error")
def test_errcall(self):
def foo(*args):
print(args)
olderrcall = np.geterrcall()
with np.errstate(call=foo):
assert_(np.geterrcall() is foo, 'call is not foo')
with np.errstate(call=None):
assert_(np.geterrcall() is None, 'call is not None')
assert_(np.geterrcall() is olderrcall, 'call is not olderrcall')
if __name__ == "__main__":
run_module_suite()