|
| 1 | +import asyncio |
| 2 | +from aiomysql import sa |
| 3 | +from sqlalchemy import bindparam |
| 4 | + |
| 5 | +import os |
| 6 | +import unittest |
| 7 | + |
| 8 | +from sqlalchemy import MetaData, Table, Column, Integer, String |
| 9 | + |
| 10 | +meta = MetaData() |
| 11 | +tbl = Table('sa_tbl_cache_test', meta, |
| 12 | + Column('id', Integer, nullable=False, |
| 13 | + primary_key=True), |
| 14 | + Column('val', String(255))) |
| 15 | + |
| 16 | + |
| 17 | +class TestCompiledCache(unittest.TestCase): |
| 18 | + def setUp(self): |
| 19 | + self.loop = asyncio.new_event_loop() |
| 20 | + asyncio.set_event_loop(None) |
| 21 | + self.host = os.environ.get('MYSQL_HOST', 'localhost') |
| 22 | + self.port = int(os.environ.get('MYSQL_PORT', 3306)) |
| 23 | + self.user = os.environ.get('MYSQL_USER', 'root') |
| 24 | + self.db = os.environ.get('MYSQL_DB', 'test_pymysql') |
| 25 | + self.password = os.environ.get('MYSQL_PASSWORD', '') |
| 26 | + self.engine = self.loop.run_until_complete(self.make_engine()) |
| 27 | + self.loop.run_until_complete(self.start()) |
| 28 | + |
| 29 | + def tearDown(self): |
| 30 | + self.engine.terminate() |
| 31 | + self.loop.run_until_complete(self.engine.wait_closed()) |
| 32 | + self.loop.close() |
| 33 | + |
| 34 | + async def make_engine(self, **kwargs): |
| 35 | + return (await sa.create_engine(db=self.db, |
| 36 | + user=self.user, |
| 37 | + password=self.password, |
| 38 | + host=self.host, |
| 39 | + port=self.port, |
| 40 | + loop=self.loop, |
| 41 | + minsize=10, |
| 42 | + **kwargs)) |
| 43 | + |
| 44 | + async def start(self): |
| 45 | + async with self.engine.acquire() as conn: |
| 46 | + tx = await conn.begin() |
| 47 | + await conn.execute("DROP TABLE IF EXISTS " |
| 48 | + "sa_tbl_cache_test") |
| 49 | + await conn.execute("CREATE TABLE sa_tbl_cache_test" |
| 50 | + "(id serial, val varchar(255))") |
| 51 | + await conn.execute(tbl.insert().values(val='some_val_1')) |
| 52 | + await conn.execute(tbl.insert().values(val='some_val_2')) |
| 53 | + await conn.execute(tbl.insert().values(val='some_val_3')) |
| 54 | + await tx.commit() |
| 55 | + |
| 56 | + def test_cache(self): |
| 57 | + async def go(): |
| 58 | + cache = dict() |
| 59 | + engine = await self.make_engine(compiled_cache=cache) |
| 60 | + async with engine.acquire() as conn: |
| 61 | + # check select with params not added to cache |
| 62 | + q = tbl.select().where(tbl.c.val == 'some_val_1') |
| 63 | + cursor = await conn.execute(q) |
| 64 | + row = await cursor.fetchone() |
| 65 | + self.assertEqual('some_val_1', row.val) |
| 66 | + self.assertEqual(0, len(cache)) |
| 67 | + |
| 68 | + # check select with bound params added to cache |
| 69 | + select_by_val = tbl.select().where( |
| 70 | + tbl.c.val == bindparam('value') |
| 71 | + ) |
| 72 | + cursor = await conn.execute( |
| 73 | + select_by_val, {'value': 'some_val_3'} |
| 74 | + ) |
| 75 | + row = await cursor.fetchone() |
| 76 | + self.assertEqual('some_val_3', row.val) |
| 77 | + self.assertEqual(1, len(cache)) |
| 78 | + |
| 79 | + cursor = await conn.execute( |
| 80 | + select_by_val, value='some_val_2' |
| 81 | + ) |
| 82 | + row = await cursor.fetchone() |
| 83 | + self.assertEqual('some_val_2', row.val) |
| 84 | + self.assertEqual(1, len(cache)) |
| 85 | + |
| 86 | + select_all = tbl.select() |
| 87 | + cursor = await conn.execute(select_all) |
| 88 | + rows = await cursor.fetchall() |
| 89 | + self.assertEqual(3, len(rows)) |
| 90 | + self.assertEqual(2, len(cache)) |
| 91 | + |
| 92 | + # check insert with bound params not added to cache |
| 93 | + await conn.execute(tbl.insert().values(val='some_val_4')) |
| 94 | + self.assertEqual(2, len(cache)) |
| 95 | + |
| 96 | + # check insert with bound params added to cache |
| 97 | + q = tbl.insert().values(val=bindparam('value')) |
| 98 | + await conn.execute(q, value='some_val_5') |
| 99 | + self.assertEqual(3, len(cache)) |
| 100 | + |
| 101 | + await conn.execute(q, value='some_val_6') |
| 102 | + self.assertEqual(3, len(cache)) |
| 103 | + |
| 104 | + await conn.execute(q, {'value': 'some_val_7'}) |
| 105 | + self.assertEqual(3, len(cache)) |
| 106 | + |
| 107 | + cursor = await conn.execute(select_all) |
| 108 | + rows = await cursor.fetchall() |
| 109 | + self.assertEqual(7, len(rows)) |
| 110 | + self.assertEqual(3, len(cache)) |
| 111 | + |
| 112 | + # check update with params not added to cache |
| 113 | + q = tbl.update().where( |
| 114 | + tbl.c.val == 'some_val_1' |
| 115 | + ).values(val='updated_val_1') |
| 116 | + await conn.execute(q) |
| 117 | + self.assertEqual(3, len(cache)) |
| 118 | + cursor = await conn.execute( |
| 119 | + select_by_val, value='updated_val_1' |
| 120 | + ) |
| 121 | + row = await cursor.fetchone() |
| 122 | + self.assertEqual('updated_val_1', row.val) |
| 123 | + |
| 124 | + # check update with bound params added to cache |
| 125 | + q = tbl.update().where( |
| 126 | + tbl.c.val == bindparam('value') |
| 127 | + ).values(val=bindparam('update')) |
| 128 | + await conn.execute( |
| 129 | + q, value='some_val_2', update='updated_val_2' |
| 130 | + ) |
| 131 | + self.assertEqual(4, len(cache)) |
| 132 | + cursor = await conn.execute( |
| 133 | + select_by_val, value='updated_val_2' |
| 134 | + ) |
| 135 | + row = await cursor.fetchone() |
| 136 | + self.assertEqual('updated_val_2', row.val) |
| 137 | + |
| 138 | + self.loop.run_until_complete(go()) |
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