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import asyncio
import pytest
from sqlalchemy import MetaData, Table, Column, Integer, String
from aiomysql import sa
meta = MetaData()
tbl = Table('sa_tbl3', meta,
Column('id', Integer, nullable=False,
primary_key=True),
Column('name', String(255)))
@pytest.fixture()
def make_engine(connection, mysql_params, loop):
engines = []
async def _make_engine(**kwargs):
if "unix_socket" in mysql_params:
conn_args = {"unix_socket": mysql_params["unix_socket"]}
else:
conn_args = {
"host": mysql_params['host'],
"port": mysql_params['port'],
}
if "ssl" in mysql_params:
conn_args["ssl"] = mysql_params["ssl"]
engine = await sa.create_engine(
db=mysql_params['db'],
user=mysql_params['user'],
password=mysql_params['password'],
minsize=10,
**conn_args,
**kwargs,
)
engines.append(engine)
return engine
yield _make_engine
for engine in engines:
engine.terminate()
loop.run_until_complete(engine.wait_closed())
async def start(engine):
async with engine.acquire() as conn:
await conn.execute("DROP TABLE IF EXISTS sa_tbl3")
await conn.execute("CREATE TABLE sa_tbl3 "
"(id serial, name varchar(255))")
@pytest.mark.run_loop
async def test_dialect(make_engine):
engine = await make_engine()
await start(engine)
assert sa.engine._dialect == engine.dialect
@pytest.mark.run_loop
async def test_name(make_engine):
engine = await make_engine()
await start(engine)
assert 'mysql' == engine.name
@pytest.mark.run_loop
async def test_driver(make_engine):
engine = await make_engine()
await start(engine)
assert 'pymysql' == engine.driver
# @pytest.mark.run_loop
# async def test_dsn(self):
# self.assertEqual(
# 'dbname=aiomysql user=aiomysql password=xxxxxx host=127.0.0.1',
# engine.dsn)
@pytest.mark.run_loop
async def test_minsize(make_engine):
engine = await make_engine()
await start(engine)
assert 10 == engine.minsize
@pytest.mark.run_loop
async def test_maxsize(make_engine):
engine = await make_engine()
await start(engine)
assert 10 == engine.maxsize
@pytest.mark.run_loop
async def test_size(make_engine):
engine = await make_engine()
await start(engine)
assert 10 == engine.size
@pytest.mark.run_loop
async def test_freesize(make_engine):
engine = await make_engine()
await start(engine)
assert 10 == engine.freesize
@pytest.mark.run_loop
async def test_make_engine_with_default_loop(make_engine):
engine = await make_engine()
await start(engine)
engine.close()
await engine.wait_closed()
@pytest.mark.run_loop
async def test_not_context_manager(make_engine):
engine = await make_engine()
await start(engine)
with pytest.raises(RuntimeError):
with engine:
pass
@pytest.mark.run_loop
async def test_release_transacted(make_engine):
engine = await make_engine()
await start(engine)
conn = await engine.acquire()
tr = await conn.begin()
with pytest.raises(sa.InvalidRequestError):
engine.release(conn)
del tr
@pytest.mark.run_loop
async def test_cannot_acquire_after_closing(make_engine):
engine = await make_engine()
await start(engine)
engine.close()
with pytest.raises(RuntimeError):
await engine.acquire()
await engine.wait_closed()
@pytest.mark.run_loop
async def test_wait_closed(make_engine):
engine = await make_engine()
await start(engine)
c1 = await engine.acquire()
c2 = await engine.acquire()
assert 10 == engine.size
assert 8 == engine.freesize
ops = []
async def do_release(conn):
await asyncio.sleep(0)
engine.release(conn)
ops.append('release')
async def wait_closed():
await engine.wait_closed()
ops.append('wait_closed')
engine.close()
await asyncio.gather(wait_closed(), do_release(c1),
do_release(c2))
assert ['release', 'release', 'wait_closed'] == ops
assert 0 == engine.freesize
engine.close()
await engine.wait_closed()
@pytest.mark.run_loop
async def test_terminate_with_acquired_connections(make_engine):
engine = await make_engine()
await start(engine)
conn = await engine.acquire()
engine.terminate()
await engine.wait_closed()
assert conn.closed
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