django-clickhouse/tests/test_utils.py
2019-06-28 13:33:22 +05:00

123 lines
4.5 KiB
Python
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

import datetime
from queue import Queue
import pytz
from django.test import TestCase
from six import with_metaclass
from django_clickhouse.models import ClickHouseSyncModel
from django_clickhouse.utils import get_tz_offset, format_datetime, lazy_class_import, int_ranges, exec_in_parallel, \
SingletonMeta
def local_dt_str(dt) -> str:
"""
Returns string representation of an aware datetime object, localized by adding system_tz_offset()
:param dt: Datetime to change
:return: Formatted string
"""
return (dt + datetime.timedelta(minutes=get_tz_offset())).strftime('%Y-%m-%d %H:%M:%S')
class FormatDateTimeTest(TestCase):
@staticmethod
def _get_zone_time(dt):
"""
На момент написания тестов в РФ было какое-то странное смещение (для Москвы, например +2:30, для Перми +4:03)
:param dt: Объект datetime.datetime
:return: Строковый ожидаемый результат
"""
minute_offset = dt.utcoffset().total_seconds() / 60
zone_h, zone_m = abs(int(minute_offset / 60)), int(minute_offset % 60)
return local_dt_str(dt - datetime.timedelta(hours=zone_h, minutes=zone_m))
def test_conversion(self):
dt = datetime.datetime(2017, 1, 2, 3, 4, 5)
self.assertEqual(format_datetime(dt), local_dt_str(dt))
dt = datetime.datetime(2017, 1, 2, 3, 4, 5, tzinfo=pytz.utc)
self.assertEqual(format_datetime(dt), local_dt_str(dt))
dt = datetime.datetime(2017, 1, 2, 3, 4, 5, tzinfo=pytz.timezone('Europe/Moscow'))
self.assertEqual(format_datetime(dt), self._get_zone_time(dt))
dt = datetime.datetime(2017, 1, 2, 3, 4, 5, tzinfo=pytz.timezone('Europe/Moscow'))
offset = int(pytz.timezone('Europe/Moscow').utcoffset(dt).total_seconds() / 60)
self.assertEqual(format_datetime(dt, timezone_offset=offset),
local_dt_str(datetime.datetime(2017, 1, 2, 3, 4, 5) - datetime.timedelta(minutes=offset*2)))
def test_date_conversion(self):
dt = datetime.date(2017, 1, 2)
self.assertEqual(format_datetime(dt), local_dt_str(datetime.datetime(2017, 1, 2, 0, 0, 0)))
dt = datetime.date(2017, 1, 2)
self.assertEqual(format_datetime(dt, day_end=True), local_dt_str(datetime.datetime(2017, 1, 2, 23, 59, 59)))
dt = datetime.date(2017, 1, 2)
self.assertEqual(format_datetime(dt, day_end=True, timezone_offset=60),
local_dt_str(datetime.datetime(2017, 1, 2, 22, 59, 59)))
dt = datetime.date(2017, 1, 2)
self.assertEqual(format_datetime(dt, timezone_offset=60), local_dt_str(datetime.datetime(2017, 1, 1, 23, 0, 0)))
class TestLazyClassImport(TestCase):
def test_str(self):
self.assertEqual(ClickHouseSyncModel, lazy_class_import('django_clickhouse.models.ClickHouseSyncModel'))
def test_cls(self):
self.assertEqual(ClickHouseSyncModel, lazy_class_import(ClickHouseSyncModel))
class TestIntRanges(TestCase):
def test_simple(self):
self.assertListEqual([(1, 3), (5, 6), (8, 10)],
list(int_ranges([1, 2, 3, 5, 6, 8, 9, 10])))
def test_empty(self):
self.assertListEqual([], list(int_ranges([])))
def test_bounds(self):
self.assertListEqual([(1, 1), (5, 6), (10, 10)],
list(int_ranges([1, 5, 6, 10])))
class TestExecInParallel(TestCase):
base_classes = []
def test_exec(self):
q = Queue()
for i in range(10):
q.put(([i], {}))
res = exec_in_parallel(lambda x: x*x, q, 4)
self.assertSetEqual({x * x for x in range(10)}, set(res))
def test_exec_no_count(self):
q = Queue()
for i in range(10):
q.put(([i], {}))
res = exec_in_parallel(lambda x: x * x, q)
self.assertSetEqual({x * x for x in range(10)}, set(res))
def test_exception(self):
q = Queue()
for i in range(10):
q.put(([i], {}))
def _test_func(x):
raise TypeError("Exception in thread %d" % x)
with self.assertRaises(TypeError):
exec_in_parallel(_test_func, q)
class TestSingletonMeta(TestCase):
def test_singleton(self):
class Single(with_metaclass(SingletonMeta)):
def __init__(self):
self.test = 1
a = Single()
a.test += 1
b = Single()
self.assertEqual(a, b)
self.assertEqual(2, b.test)