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from caffe2.python import core
from hypothesis import given, settings
import caffe2.python.hypothesis_test_util as hu
import caffe2.python.serialized_test.serialized_test_util as serial
import hypothesis.strategies as st
import numpy as np
def _string_lists(alphabet=None):
return st.lists(
elements=st.text(alphabet=alphabet) if alphabet else st.text(),
min_size=0,
max_size=3)
class TestStringOps(serial.SerializedTestCase):
@given(strings=_string_lists())
@settings(deadline=10000)
def test_string_prefix(self, strings):
length = 3
# although we are utf-8 encoding below to avoid python exceptions,
# StringPrefix op deals with byte-length prefixes, which may produce
# an invalid utf-8 string. The goal here is just to avoid python
# complaining about the unicode -> str conversion.
strings = np.array(
[a.encode('utf-8') for a in strings], dtype=np.object
)
def string_prefix_ref(strings):
return (
np.array([a[:length] for a in strings], dtype=object),
)
op = core.CreateOperator(
'StringPrefix',
['strings'],
['stripped'],
length=length)
self.assertReferenceChecks(
hu.cpu_do,
op,
[strings],
string_prefix_ref)
@given(strings=_string_lists())
@settings(deadline=10000)
def test_string_suffix(self, strings):
length = 3
strings = np.array(
[a.encode('utf-8') for a in strings], dtype=np.object
)
def string_suffix_ref(strings):
return (
np.array([a[-length:] for a in strings], dtype=object),
)
op = core.CreateOperator(
'StringSuffix',
['strings'],
['stripped'],
length=length)
self.assertReferenceChecks(
hu.cpu_do,
op,
[strings],
string_suffix_ref)
@given(strings=st.text(alphabet=['a', 'b']))
@settings(deadline=10000)
def test_string_starts_with(self, strings):
prefix = 'a'
strings = np.array(
[str(a) for a in strings], dtype=np.object
)
def string_starts_with_ref(strings):
return (
np.array([a.startswith(prefix) for a in strings], dtype=bool),
)
op = core.CreateOperator(
'StringStartsWith',
['strings'],
['bools'],
prefix=prefix)
self.assertReferenceChecks(
hu.cpu_do,
op,
[strings],
string_starts_with_ref)
@given(strings=st.text(alphabet=['a', 'b']))
@settings(deadline=10000)
def test_string_ends_with(self, strings):
suffix = 'a'
strings = np.array(
[str(a) for a in strings], dtype=np.object
)
def string_ends_with_ref(strings):
return (
np.array([a.endswith(suffix) for a in strings], dtype=bool),
)
op = core.CreateOperator(
'StringEndsWith',
['strings'],
['bools'],
suffix=suffix)
self.assertReferenceChecks(
hu.cpu_do,
op,
[strings],
string_ends_with_ref)
@given(strings=st.text(alphabet=['a', 'b']))
@settings(deadline=10000)
def test_string_equals(self, strings):
text = ""
if strings:
text = strings[0]
strings = np.array(
[str(a) for a in strings], dtype=np.object
)
def string_equals_ref(strings):
return (
np.array([a == text for a in strings], dtype=bool),
)
op = core.CreateOperator(
'StringEquals',
['strings'],
['bools'],
text=text)
self.assertReferenceChecks(
hu.cpu_do,
op,
[strings],
string_equals_ref)
if __name__ == "__main__":
import unittest
unittest.main()
|
