Documentation: https://yassun7010.github.io/turu-py/
Source Code: https://github.com/yassun7010/turu-py
pip install "turu[snowflake]"SQL is a powerful language, but it has many dialects, and Cloud Native Databases are especially difficult to test automatically in a local environment.
Turu was developed as a simple tool to assist local development. It provides a simple interface according to PEP 249 – Python Database API Specification v2.0 and allows for easy recording of query results and injection mock data.
- 🚀 Simple - Turu is a simple database api wrapper of PEP 249.
- 💡 Type Hint - Full support for type hints.
- ⚡ Async/Await - Async/Await supports.
- 🧪 Recoed and Mock - Record and mock database queries for testing.
| Database | Sync Support | Async Support | Installation |
|---|---|---|---|
| SQLite3 | Yes | Yes | pip install "turu[sqlite3]" |
| MySQL | Yes | Yes | pip install "turu[mysql]" |
| PostgreSQL | Yes | Yes | pip install "turu[postgres]" |
| Snowflake | Yes | Yes | pip install "turu[snowflake]" |
| BigQuery | Yes | No | pip install "turu[bigquery]" |
from pydantic import BaseModel
class Row(BaseModel):
id: int
name: str
connection = turu.sqlite3.connect("test.db")
with connection.cursor() as cursor:
assert cursor.execute_map(Row, "select 1, 'a'").fetchone() == Row(id=1, name="a")import turu.sqlite3
from pydantic import BaseModel
class Row(BaseModel):
id: int
name: str
expected1 = [Row(id=1, name="a"), Row(id=2, name="b")]
expected2 = [Row(id=3, name="c"), Row(id=4, name="d")]
expected3 = [Row(id=5, name="e"), Row(id=6, name="f")]
connection = turu.sqlite3.MockConnection()
(
connection.chain()
.inject_response(Row, expected1)
.inject_response(Row, expected2)
.inject_response(Row, expected3)
)
for expected in [expected1, expected2, expected3]:
with connection.cursor() as cursor:
assert cursor.execute_map(Row, "select 1, 'a'").fetchall() == expectedYour Production Code
import os
import turu.sqlite3
from turu.core.record import record_to_csv
from your_package.data import RECORD_DIR
from your_package.schema import Row
def do_something(connection: turu.sqlite3.Connection):
with record_to_csv(
RECORD_DIR / "test.csv",
connection.curosr(),
enable=os.environ.get("ENABLE_RECORDING"),
limit=100,
) as cursor:
... # Your logicYour Test Code
import turu.sqlite3
from your_package.data import RECORD_DIR
from your_package.schema import Row
def test_do_something(connection: turu.sqlite3.MockConnection):
connection.inject_response_from_csv(Row, RECORD_DIR / "test.csv")
assert do_something(connection) is None
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