-
Notifications
You must be signed in to change notification settings - Fork 3
/
test_cratedb_sqlalchemy.py
58 lines (47 loc) · 1.94 KB
/
test_cratedb_sqlalchemy.py
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
# Copyright (c) 2023, Crate.io Inc.
# Distributed under the terms of the AGPLv3 license, see LICENSE.
import sqlalchemy as sa
from tests.conftest import TESTDRIVE_DATA_SCHEMA
def test_cratedb_summits(cratedb):
"""
Just to verify communication with CrateDB works.
"""
database_url = cratedb.get_connection_url()
sa_engine = sa.create_engine(database_url)
with sa_engine.connect() as conn:
sql = "SELECT mountain, region, prominence FROM sys.summits ORDER BY prominence DESC LIMIT 3;"
with conn.execute(sa.text(sql)) as result:
assert result.fetchall() == [
("Mont Blanc", "Mont Blanc massif", 4695),
("Großglockner", "Glockner Group", 2428),
("Finsteraarhorn", "Bernese Alps", 2280),
]
def test_database_insert(cratedb):
"""
Verify that inserting two records and reading them back works well.
"""
cratedb.reset()
database_url = cratedb.get_connection_url()
# Validate data in storage system.
sa_engine = sa.create_engine(database_url)
with sa_engine.connect() as conn:
# Define and materialize table schema.
meta = sa.MetaData()
tbl = sa.Table(
"testdrive",
meta,
sa.Column("username", sa.String),
sa.Column("fullname", sa.String),
schema=TESTDRIVE_DATA_SCHEMA,
)
meta.create_all(sa_engine)
# Insert data.
insertable = sa.insert(tbl)
conn.execute(insertable.values(username="foo", fullname="Full Foo"))
conn.execute(insertable.values(username="bar", fullname="Full Bar"))
# Synchronize data.
conn.exec_driver_sql(f'REFRESH TABLE "{TESTDRIVE_DATA_SCHEMA}"."testdrive";')
# Verify data.
sql = f'SELECT COUNT(*) FROM "{TESTDRIVE_DATA_SCHEMA}"."testdrive";' # noqa: S608
with conn.execute(sa.text(sql)) as result:
assert result.scalar_one() == 2