85 lines
2.4 KiB
Python
85 lines
2.4 KiB
Python
|
"""PostgreSQL reader contract tests using a fake connection."""
|
||
|
|
|
||
|
|
from datetime import date
|
||
|
|
from typing import cast
|
||
|
|
|
||
|
|
import psycopg
|
||
|
|
import pytest
|
||
|
|
|
||
|
|
from zhixing_server.modules.selection.infrastructure.postgres_reader import (
|
||
|
|
PostgresMarketDataReader,
|
||
|
|
)
|
||
|
|
|
||
|
|
|
||
|
|
class FakeConnection:
|
||
|
|
def __init__(self, rows: list[tuple[object, ...]]) -> None:
|
||
|
|
self.rows = rows
|
||
|
|
self.query: str | None = None
|
||
|
|
self.parameters: tuple[object, ...] | None = None
|
||
|
|
|
||
|
|
def __enter__(self) -> "FakeConnection":
|
||
|
|
return self
|
||
|
|
|
||
|
|
def __exit__(self, *args: object) -> None:
|
||
|
|
return None
|
||
|
|
|
||
|
|
def execute(self, query: str, parameters: tuple[object, ...]) -> "FakeResult":
|
||
|
|
self.query = query
|
||
|
|
self.parameters = parameters
|
||
|
|
return FakeResult(self.rows)
|
||
|
|
|
||
|
|
|
||
|
|
class FakeResult:
|
||
|
|
def __init__(self, rows: list[tuple[object, ...]]) -> None:
|
||
|
|
self.rows = rows
|
||
|
|
|
||
|
|
def fetchall(self) -> list[tuple[object, ...]]:
|
||
|
|
return self.rows
|
||
|
|
|
||
|
|
|
||
|
|
def test_reader_parameterizes_target_and_maps_left_join(monkeypatch: pytest.MonkeyPatch) -> None:
|
||
|
|
connection = FakeConnection(
|
||
|
|
[
|
||
|
|
(
|
||
|
|
"000001.SZ",
|
||
|
|
"平安银行",
|
||
|
|
date(2024, 1, 2),
|
||
|
|
"10",
|
||
|
|
"11",
|
||
|
|
"9",
|
||
|
|
"10.5",
|
||
|
|
"1000",
|
||
|
|
None,
|
||
|
|
None,
|
||
|
|
),
|
||
|
|
(
|
||
|
|
"000001.SZ",
|
||
|
|
"平安银行",
|
||
|
|
date(2024, 1, 3),
|
||
|
|
"10.5",
|
||
|
|
"11",
|
||
|
|
"10",
|
||
|
|
"10.8",
|
||
|
|
"1200",
|
||
|
|
"1.2",
|
||
|
|
"100000",
|
||
|
|
),
|
||
|
|
]
|
||
|
|
)
|
||
|
|
|
||
|
|
def connect(database_url: str) -> FakeConnection:
|
||
|
|
assert database_url == "postgresql://test"
|
||
|
|
return connection
|
||
|
|
|
||
|
|
monkeypatch.setattr(psycopg, "connect", connect)
|
||
|
|
history = PostgresMarketDataReader("postgresql://test").load_history(
|
||
|
|
"000001.SZ", date(2024, 1, 3)
|
||
|
|
)
|
||
|
|
|
||
|
|
assert [bar.trade_date for bar in history.bars] == [date(2024, 1, 2), date(2024, 1, 3)]
|
||
|
|
assert history.daily_basic[date(2024, 1, 2)].turnover_rate is None
|
||
|
|
assert history.daily_basic[date(2024, 1, 3)].total_mv == 100000.0
|
||
|
|
assert connection.parameters == ("000001.SZ", date(2024, 1, 3))
|
||
|
|
assert "source_adj = 'qfq'" in cast(str, connection.query)
|
||
|
|
assert "trade_date <= %s" in cast(str, connection.query)
|