infi.clickhouse_orm/tests/test_datetime_fields.py

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from __future__ import unicode_literals
import unittest
from infi.clickhouse_orm.database import Database
from infi.clickhouse_orm.models import Model
from infi.clickhouse_orm.fields import *
from infi.clickhouse_orm.engines import *
class DateFieldsTest(unittest.TestCase):
def setUp(self):
self.database = Database('test-db')
self.database.create_table(ModelWithDate)
def tearDown(self):
self.database.drop_database()
def test_ad_hoc_model(self):
self.database.insert([
ModelWithDate(date_field='2016-08-30', datetime_field='2016-08-30 03:50:00'),
ModelWithDate(date_field='2016-08-31', datetime_field='2016-08-31 01:30:00')
])
# toStartOfHour returns DateTime('Asia/Yekaterinburg') in my case, so I test it here to
query = 'SELECT toStartOfHour(datetime_field) as hour_start, * from $db.modelwithdate ORDER BY date_field'
results = list(self.database.select(query))
self.assertEquals(len(results), 2)
self.assertEquals(results[0].date_field, datetime.date(2016, 8, 30))
self.assertEquals(results[0].datetime_field, datetime.datetime(2016, 8, 30, 3, 50, 0, tzinfo=pytz.UTC))
self.assertEquals(results[0].hour_start, datetime.datetime(2016, 8, 30, 3, 0, 0, tzinfo=pytz.UTC))
self.assertEquals(results[1].date_field, datetime.date(2016, 8, 31))
self.assertEquals(results[1].datetime_field, datetime.datetime(2016, 8, 31, 1, 30, 0, tzinfo=pytz.UTC))
self.assertEquals(results[1].hour_start, datetime.datetime(2016, 8, 31, 1, 0, 0, tzinfo=pytz.UTC))
class ModelWithDate(Model):
date_field = DateField()
datetime_field = DateTimeField()
engine = MergeTree('date_field', ('date_field',))