pytest-pg 0.0.25

A tiny plugin for pytest which runs PostgreSQL in Docker

To speed up tests, pytest-pg does the following tweaks:

1. fsync=off
2. full_page_writes=off
3. synchronous_commit=off
4. jit=off
5. bgwriter_lru_maxpages=0
6. data directory is mounted to a tmpfs

How to use?

import asyncpg


async def test_asyncpg_query(pg):
    conn = await asyncpg.connect(
        user=pg.user,
        password=pg.password,
        database=pg.database,
        host=pg.host,
        port=pg.port,
    )

    await conn.execute("CREATE TABLE test_table (id serial PRIMARY KEY, value text);")
    await conn.execute("INSERT INTO test_table (value) VALUES ($1)", "hello")
    row = await conn.fetchrow("SELECT value FROM test_table WHERE id = $1", 1)

    assert row["value"] == "hello"

    await conn.close()

v0.0.25 (2025-05-18)

• Add pg_17 fixture

v0.0.24 (2025-05-11)

• Downgrade pytest

v0.0.23 (2025-04-11)

• Do not pull if we have an image locally

v0.0.22 (2025-04-03)

• Override docker host with env variable

v0.0.17 (2024-04-03)

• Override docker host with env variable

v0.0.15 (2023-05-04)

• Pin version of urllib3 (see for more details)
• Add pg_15 fixture

v0.0.14 (2022-09-19)

• Disable jit by default
• Set bgwriter_lru_maxpages

v0.0.12 (2022-01-18)

• Ditch logging because it seems to be useless

v0.0.11 (2022-01-09)

• Move volume to tmpfs

v0.0.10 (2022-01-08)

• Volumes used to remain after running test consuming disk space

v0.0.9 (2021-12-28)

• Disable fsync, full_page_writes, synchronous_commit to speedup the tests

v0.0.8 (2021-12-26)

• Add typing marker, mypy. Run tests in CI

v0.0.7 (2021-12-25)

• Fix is_ready based on psycopg2

v0.0.6 (2021-12-25)

• Add all recent major versions of PG

v0.0.4 (2021-12-10)

• Fix is_postgres_ready usage

v0.0.3 (2021-12-10)

• Fix uuid generation

v0.0.2 (2021-12-10)

• Follow pytest guide for plugins

v0.0.1 (2021-12-10)

• A first version