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import datetime
from unittest.mock import Mock
from redis import Redis
from rq.exceptions import TimeoutFormatError
from rq.utils import (
as_text,
backend_class,
ceildiv,
ensure_job_list,
get_call_string,
get_version,
import_attribute,
is_nonstring_iterable,
parse_timeout,
split_list,
truncate_long_string,
utcparse,
)
from rq.worker import SimpleWorker
from tests import RQTestCase, fixtures
class TestUtils(RQTestCase):
def test_parse_timeout(self):
"""Ensure function parse_timeout works correctly"""
self.assertEqual(12, parse_timeout(12))
self.assertEqual(12, parse_timeout('12'))
self.assertEqual(12, parse_timeout('12s'))
self.assertEqual(720, parse_timeout('12m'))
self.assertEqual(3600, parse_timeout('1h'))
self.assertEqual(3600, parse_timeout('1H'))
def test_parse_timeout_coverage_scenarios(self):
"""Test parse_timeout edge cases for coverage"""
timeouts = ['h12', 'h', 'm', 's', '10k']
self.assertEqual(None, parse_timeout(None))
with self.assertRaises(TimeoutFormatError):
for timeout in timeouts:
parse_timeout(timeout)
def test_is_nonstring_iterable(self):
"""Ensure function is_nonstring_iterable works correctly"""
self.assertEqual(True, is_nonstring_iterable([]))
self.assertEqual(False, is_nonstring_iterable('test'))
self.assertEqual(True, is_nonstring_iterable({}))
self.assertEqual(True, is_nonstring_iterable(()))
def test_as_text(self):
"""Ensure function as_text works correctly"""
bad_texts = [3, None, 'test\xd0']
self.assertEqual('test', as_text(b'test'))
self.assertEqual('test', as_text('test'))
with self.assertRaises(ValueError):
for text in bad_texts:
as_text(text)
def test_ensure_list(self):
"""Ensure function ensure_list works correctly"""
self.assertEqual([], ensure_job_list([]))
self.assertEqual(['test'], ensure_job_list('test'))
self.assertEqual([], ensure_job_list({}))
self.assertEqual([], ensure_job_list(()))
def test_utcparse(self):
"""Ensure function utcparse works correctly"""
utc_formatted_time = '2017-08-31T10:14:02.123456Z'
expected_time = datetime.datetime(2017, 8, 31, 10, 14, 2, 123456, tzinfo=datetime.timezone.utc)
self.assertEqual(expected_time, utcparse(utc_formatted_time))
def test_utcparse_legacy(self):
"""Ensure function utcparse works correctly"""
utc_formatted_time = '2017-08-31T10:14:02Z'
expected_time = datetime.datetime(2017, 8, 31, 10, 14, 2, tzinfo=datetime.timezone.utc)
self.assertEqual(expected_time, utcparse(utc_formatted_time))
def test_backend_class(self):
"""Ensure function backend_class works correctly"""
self.assertEqual(fixtures.DummyQueue, backend_class(fixtures, 'DummyQueue'))
self.assertNotEqual(fixtures.say_pid, backend_class(fixtures, 'DummyQueue'))
self.assertEqual(fixtures.DummyQueue, backend_class(fixtures, 'DummyQueue', override=fixtures.DummyQueue))
self.assertEqual(
fixtures.DummyQueue, backend_class(fixtures, 'DummyQueue', override='tests.fixtures.DummyQueue')
)
def test_get_redis_version(self):
"""Ensure get_version works properly"""
redis = Redis()
self.assertTrue(isinstance(get_version(redis), tuple))
# Parses 3 digit version numbers correctly
class DummyRedis(Redis):
def info(*args):
return {'redis_version': '4.0.8'}
self.assertEqual(get_version(DummyRedis()), (4, 0, 8))
# Parses 3 digit version numbers correctly
class DummyRedis(Redis):
def info(*args):
return {'redis_version': '3.0.7.9'}
self.assertEqual(get_version(DummyRedis()), (3, 0, 7))
# Parses 2 digit version numbers correctly (Seen in AWS ElastiCache Redis)
class DummyRedis(Redis):
def info(*args):
return {'redis_version': '7.1'}
self.assertEqual(get_version(DummyRedis()), (7, 1, 0))
# Parses 2 digit float version numbers correctly (Seen in AWS ElastiCache Redis)
class DummyRedis(Redis):
def info(*args):
return {'redis_version': 7.1}
self.assertEqual(get_version(DummyRedis()), (7, 1, 0))
def test_get_redis_version_gets_cached(self):
"""Ensure get_version works properly"""
# Parses 3 digit version numbers correctly
redis = Mock(spec=['info'])
redis.info = Mock(return_value={'redis_version': '4.0.8'})
self.assertEqual(get_version(redis), (4, 0, 8))
self.assertEqual(get_version(redis), (4, 0, 8))
redis.info.assert_called_once()
def test_import_attribute(self):
"""Ensure get_version works properly"""
self.assertEqual(import_attribute('rq.utils.get_version'), get_version)
self.assertEqual(import_attribute('rq.worker.SimpleWorker'), SimpleWorker)
self.assertRaises(ValueError, import_attribute, 'non.existent.module')
self.assertRaises(ValueError, import_attribute, 'rq.worker.WrongWorker')
def test_ceildiv_even(self):
"""When a number is evenly divisible by another ceildiv returns the quotient"""
dividend = 12
divisor = 4
self.assertEqual(ceildiv(dividend, divisor), dividend // divisor)
def test_ceildiv_uneven(self):
"""When a number is not evenly divisible by another ceildiv returns the quotient plus one"""
dividend = 13
divisor = 4
self.assertEqual(ceildiv(dividend, divisor), dividend // divisor + 1)
def test_split_list(self):
"""Ensure split_list works properly"""
BIG_LIST_SIZE = 42
SEGMENT_SIZE = 5
big_list = ['1'] * BIG_LIST_SIZE
small_lists = list(split_list(big_list, SEGMENT_SIZE))
expected_small_list_count = ceildiv(BIG_LIST_SIZE, SEGMENT_SIZE)
self.assertEqual(len(small_lists), expected_small_list_count)
def test_truncate_long_string(self):
"""Ensure truncate_long_string works properly"""
assert truncate_long_string('12', max_length=3) == '12'
assert truncate_long_string('123', max_length=3) == '123'
assert truncate_long_string('1234', max_length=3) == '123...'
assert truncate_long_string('12345', max_length=3) == '123...'
s = 'long string but no max_length provided so no truncating should occur' * 10
assert truncate_long_string(s) == s
def test_get_call_string(self):
"""Ensure a case, when func_name, args and kwargs are not None, works properly"""
cs = get_call_string('f', ('some', 'args', 42), {'key1': 'value1', 'key2': True})
assert cs == "f('some', 'args', 42, key1='value1', key2=True)"
def test_get_call_string_with_max_length(self):
"""Ensure get_call_string works properly when max_length is provided"""
func_name = 'f'
args = (1234, 12345, 123456)
kwargs = {'len4': 1234, 'len5': 12345, 'len6': 123456}
cs = get_call_string(func_name, args, kwargs, max_length=5)
assert cs == 'f(1234, 12345, 12345..., len4=1234, len5=12345, len6=12345...)'
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