def check_bad(self, fromty, toty):
with self.assertRaises(TypingError) as raises:
_sentry_safe_cast(fromty, toty)
self.assertIn(
'cannot safely cast {fromty} to {toty}'.format(**locals()),
str(raises.exception),
)
def test_sentry_safe_cast_no_warn(self):
ok_cases = []
ok_cases += [
# integer cases
(types.int32, types.int64),
(types.uint8, types.int32),
# float cases
(types.float32, types.float64),
# complex cases
(types.complex64, types.complex128),
# int to float cases
(types.int32, types.float64),
(types.uint8, types.float32),
# float to complex cases
(types.float32, types.complex128),
(types.float64, types.complex128),
# tuple-of-ints to tuple-of-ints,
(types.Tuple([types.int32]), types.Tuple([types.int64])),
]
for fromty, toty in ok_cases:
with self.subTest(fromty=fromty, toty=toty):
with warnings.catch_warnings(record=True) as w:
_sentry_safe_cast(fromty, toty)
# Expect no warnings
self.assertEqual(len(w), 0)
def test_sentry_safe_cast_warnings(self):
warn_cases = []
warn_cases += [
# integer cases
(types.int32, types.int16),
(types.int32, types.uint32),
(types.int64, types.uint32),
# float cases
(types.float64, types.float32),
# complex cases
(types.complex128, types.complex64),
# int to float cases
(types.int32, types.float32),
(types.int64, types.float32),
# tuple-of-ints to tuple-of-floats,
(types.Tuple([types.int32]), types.Tuple([types.float32])),
]
for fromty, toty in warn_cases:
with self.subTest(fromty=fromty, toty=toty):
with warnings.catch_warnings(record=True) as w:
_sentry_safe_cast(fromty, toty)
self.assertEqual(len(w), 1)
# Make sure the warning is about unsafe cast
self.assertIn(
"unsafe cast from {} to {}".format(fromty, toty),
str(w[0]),
)
def check_good(self, fromty, toty):
_sentry_safe_cast(fromty, toty)
