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"""Tests for the SQLAlchemy async database layer."""
import pytest
from decimal import Decimal
from datetime import datetime, timezone
from unittest.mock import AsyncMock, MagicMock, patch
def make_candle():
from shared.models import Candle
return Candle(
symbol="BTCUSDT",
timeframe="1m",
open_time=datetime(2024, 1, 1, tzinfo=timezone.utc),
open=Decimal("50000"),
high=Decimal("51000"),
low=Decimal("49500"),
close=Decimal("50500"),
volume=Decimal("100"),
)
def make_signal():
from shared.models import Signal, OrderSide
return Signal(
id="sig-1",
strategy="ma_cross",
symbol="BTCUSDT",
side=OrderSide.BUY,
price=Decimal("50000"),
quantity=Decimal("0.1"),
reason="Golden cross",
created_at=datetime(2024, 1, 1, tzinfo=timezone.utc),
)
def make_order():
from shared.models import Order, OrderSide, OrderType, OrderStatus
return Order(
id="ord-1",
signal_id="sig-1",
symbol="BTCUSDT",
side=OrderSide.BUY,
type=OrderType.LIMIT,
price=Decimal("50000"),
quantity=Decimal("0.1"),
status=OrderStatus.PENDING,
created_at=datetime(2024, 1, 1, tzinfo=timezone.utc),
)
class TestDatabaseConstructor:
def test_stores_url(self):
from shared.db import Database
db = Database("postgresql://user:pass@localhost/db")
assert db._database_url == "postgresql+asyncpg://user:pass@localhost/db"
def test_converts_url_prefix(self):
from shared.db import Database
db = Database("postgresql://host/db")
assert db._database_url.startswith("postgresql+asyncpg://")
def test_keeps_asyncpg_prefix(self):
from shared.db import Database
db = Database("postgresql+asyncpg://host/db")
assert db._database_url == "postgresql+asyncpg://host/db"
def test_get_session_exists(self):
from shared.db import Database
db = Database("postgresql+asyncpg://host/db")
assert hasattr(db, "get_session")
class TestDatabaseConnect:
@pytest.mark.asyncio
async def test_connect_creates_engine_and_tables(self):
from shared.db import Database
db = Database("postgresql+asyncpg://host/db")
mock_conn = AsyncMock()
mock_cm = AsyncMock()
mock_cm.__aenter__.return_value = mock_conn
mock_engine = MagicMock()
mock_engine.begin.return_value = mock_cm
mock_engine.dispose = AsyncMock()
with patch("shared.db.create_async_engine", return_value=mock_engine) as mock_create:
with patch("shared.db.async_sessionmaker"):
with patch("shared.db.Base") as mock_base:
mock_base.metadata.create_all = MagicMock()
await db.connect()
mock_create.assert_called_once()
@pytest.mark.asyncio
async def test_init_tables_is_alias_for_connect(self):
from shared.db import Database
db = Database("postgresql+asyncpg://host/db")
mock_conn = AsyncMock()
mock_cm = AsyncMock()
mock_cm.__aenter__.return_value = mock_conn
mock_engine = MagicMock()
mock_engine.begin.return_value = mock_cm
mock_engine.dispose = AsyncMock()
with patch("shared.db.create_async_engine", return_value=mock_engine):
with patch("shared.db.async_sessionmaker"):
with patch("shared.db.Base") as mock_base:
mock_base.metadata.create_all = MagicMock()
await db.init_tables()
# Should succeed without error (same as connect)
class TestDatabaseClose:
@pytest.mark.asyncio
async def test_close_disposes_engine(self):
from shared.db import Database
db = Database("postgresql+asyncpg://host/db")
mock_engine = AsyncMock()
db._engine = mock_engine
await db.close()
mock_engine.dispose.assert_awaited_once()
class TestInsertCandle:
@pytest.mark.asyncio
async def test_insert_candle_uses_merge_and_commit(self):
from shared.db import Database
db = Database("postgresql+asyncpg://host/db")
mock_session = AsyncMock()
mock_session.merge = MagicMock(return_value=None)
mock_session.__aenter__ = AsyncMock(return_value=mock_session)
mock_session.__aexit__ = AsyncMock(return_value=False)
db._session_factory = MagicMock(return_value=mock_session)
candle = make_candle()
await db.insert_candle(candle)
mock_session.merge.assert_called_once()
mock_session.commit.assert_awaited_once()
class TestInsertSignal:
@pytest.mark.asyncio
async def test_insert_signal_uses_add_and_commit(self):
from shared.db import Database
db = Database("postgresql+asyncpg://host/db")
mock_session = AsyncMock()
mock_session.add = MagicMock()
mock_session.__aenter__ = AsyncMock(return_value=mock_session)
mock_session.__aexit__ = AsyncMock(return_value=False)
db._session_factory = MagicMock(return_value=mock_session)
signal = make_signal()
await db.insert_signal(signal)
mock_session.add.assert_called_once()
mock_session.commit.assert_awaited_once()
class TestInsertOrder:
@pytest.mark.asyncio
async def test_insert_order_uses_add_and_commit(self):
from shared.db import Database
db = Database("postgresql+asyncpg://host/db")
mock_session = AsyncMock()
mock_session.add = MagicMock()
mock_session.__aenter__ = AsyncMock(return_value=mock_session)
mock_session.__aexit__ = AsyncMock(return_value=False)
db._session_factory = MagicMock(return_value=mock_session)
order = make_order()
await db.insert_order(order)
mock_session.add.assert_called_once()
mock_session.commit.assert_awaited_once()
class TestUpdateOrderStatus:
@pytest.mark.asyncio
async def test_update_order_status_uses_execute_and_commit(self):
from shared.db import Database
from shared.models import OrderStatus
db = Database("postgresql+asyncpg://host/db")
mock_session = AsyncMock()
mock_session.__aenter__ = AsyncMock(return_value=mock_session)
mock_session.__aexit__ = AsyncMock(return_value=False)
db._session_factory = MagicMock(return_value=mock_session)
filled = datetime(2024, 1, 2, tzinfo=timezone.utc)
await db.update_order_status("ord-1", OrderStatus.FILLED, filled)
mock_session.execute.assert_awaited_once()
mock_session.commit.assert_awaited_once()
class TestGetCandles:
@pytest.mark.asyncio
async def test_get_candles_returns_list_of_dicts(self):
from shared.db import Database
db = Database("postgresql+asyncpg://host/db")
# Create a mock row that behaves like a SA result row
mock_row = MagicMock()
mock_row._mapping = {
"symbol": "BTCUSDT",
"timeframe": "1m",
"open_time": datetime(2024, 1, 1, tzinfo=timezone.utc),
"open": Decimal("50000"),
"high": Decimal("51000"),
"low": Decimal("49500"),
"close": Decimal("50500"),
"volume": Decimal("100"),
}
mock_result = MagicMock()
mock_result.fetchall.return_value = [mock_row]
mock_session = AsyncMock()
mock_session.execute = AsyncMock(return_value=mock_result)
mock_session.__aenter__ = AsyncMock(return_value=mock_session)
mock_session.__aexit__ = AsyncMock(return_value=False)
db._session_factory = MagicMock(return_value=mock_session)
result = await db.get_candles("BTCUSDT", "1m", 500)
assert isinstance(result, list)
assert len(result) == 1
assert result[0]["symbol"] == "BTCUSDT"
mock_session.execute.assert_awaited_once()
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