feat(§T): 账户看板 + 场内模拟交易 9 端点(用户自助首版)

新增 §T 用户自助段(docs/05 §19 新号段 7 个 = A×40/C×7/K×4/M×4/O×3/R×4/T×9):

- T001 GET /api/v1/users/me/account/dashboard  — 账户/资金/持仓/盈亏汇总

- T002 POST /api/v1/users/me/orders  — 委托提交(首版 market 立即全额成交)

- T003 / T004 / T005  委托列表/详情/撤单

- T006 GET /api/v1/users/me/holdings  — 持仓列表(含市值/盈亏/当日盈亏)

- T007 / T008  成交记录列表/详情

- T009 GET /api/v1/users/me/cash-ledger  — 资金账本

要点(与 docs/00 §6.6 一致):

- 首版市价委托立即全额成交,不实现撮合队列/部分成交;T005 撤单首版对任何在场委托返回 ORDER_NOT_CANCELLABLE (409)

- 价格来源复用 base FundQuoteService;service 层不二次封装(满足 AGENTS 第 2 条)

- 首版风控 3 条硬性:产品可交易、客户适当性、持仓比例上限(fin_market_price 缺失或过期 → 拒绝买入)

- 数据库零修改:10 张 fin_* 表全部 docs/00 既定,本批 PR 改列类型与可空性均 0;底座实际偏差(id 无 AUTO_INCREMENT、所谓'生成列'是普通 NOT NULL)由 service _next_id / 业务派生值补偿

注册 API:9 端点均注册进 app.main;user=9001(cust)'s id 写账

权限码(tools/seed_test_rbac.py 同步登记 + CUSTOMER 全量):

  9047 account:read:self

  9048 trade:order:create

  9049 trade:order:read

  9050 trade:order:cancel

  9051 holding:read:self

  9052 trade:txn:read

错误码(app/core/errors.py + docs/05 §3.6 + tests/unit/core/test_errors.py DOCUMENTED 三方同步):

  404 ACCOUNT_NOT_FOUND / ORDER_NOT_FOUND

  409 ORDER_NOT_CANCELLABLE

  422 INSUFFICIENT_FUNDS / INSUFFICIENT_HOLDING / HOLDING_RATIO_EXCEEDED / SUITABILITY_MISMATCH / PRODUCT_NOT_TRADABLE

  503 FUND_QUOTE_UNAVAILABLE(可重试)

新增:app/api/controllers/trading.py / app/api/schemas/trading.py / app/service/trade_service.py / tools/seed_sim_account_demo.py / tests/unit/service/test_trade_service.py(unit×8) / tests/contract/test_trading_endpoint_contract.py(contract×11)

修改:app/main.py(挂载 controller) / app/core/errors.py(10 新异常类) / tools/seed_test_rbac.py / docs/05-接口文档.md(§19 T001-T009 + §3.6 9 新码) / tests/unit/core/test_errors.py(DOCUMENTED 同步)

门禁:pytest tests/unit tests/contract 1313 passed (+19 新增) / ruff all clean / 三道守卫全过
This commit is contained in:
张胜宇
2026-09-12 15:50:37 +08:00
committed by ZSY
parent 615032ab00
commit ebc3fe4cbe
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"""T 段(账户看板 + 场内模拟交易)单元测试。
不连数据库。覆盖:
- ``TradeService._compute_fee`` 的固定费 / 比例费 / 最低费三种规则的计价优先级;
- ``TradeService.list_holdings`` / ``get_account_dashboard`` 对行情快照的衍生
``profit_loss`` / ``market_value`` 计算(在与 `FinMarketPrice` 类似的 ORM 替身下)。
业务主流程(买入/卖出原子事务)留给 ``tests/integration/test_sim_trading_mysql.py``
做 MySQL 真机回归,避免在 unit 测试里复刻整张表。
"""
from __future__ import annotations
from decimal import Decimal
import pytest
from app.api.schemas.trading import (
CashLedgerResponse,
HoldingItem,
HoldingListResponse,
PortfolioSummary,
)
from app.service.trade_service import TradeService, _FeeRule
# ---------------------------------------------------------------------------
# 替身:与 SQLAlchemy 模型仅作"读取字段"用途一致的轻量对象
# ---------------------------------------------------------------------------
class _FakeProduct:
product_code = "510300"
name = "沪深300ETF"
risk_level = "R3"
lot_size = Decimal("100")
single_investor_max_holding_ratio = Decimal("30.0000")
status = "上市"
# ---------------------------------------------------------------------------
# _compute_fee 单测
# ---------------------------------------------------------------------------
def _service() -> TradeService:
"""构造一个不真正连库的 TradeService(_compute_fee 纯函数)。"""
return TradeService(session=None) # type: ignore[arg-type]
@pytest.mark.parametrize(
"rule, gross, expected_fee",
[
# 仅比例费(rate=0.1%)
(
_FeeRule(
fee_rate=Decimal("0.001"),
minimum_fee=Decimal("0.00"),
fixed_fee=Decimal("0"),
),
Decimal("1000"),
Decimal("1.00"),
),
# 仅固定费(rate=0)
(
_FeeRule(
fee_rate=Decimal("0"),
minimum_fee=Decimal("0.00"),
fixed_fee=Decimal("1.50"),
),
Decimal("1000"),
Decimal("1.50"),
),
# 比例费触发最低费(rate=0.05% → 比例费 0.05 < 最低 1.00)
(
_FeeRule(
fee_rate=Decimal("0.0005"),
minimum_fee=Decimal("1.00"),
fixed_fee=Decimal("0"),
),
Decimal("100"),
Decimal("1.00"),
),
# 比例费超过最低费(rate=0.1% → 比例费 1.00 == 最低 1.00)
(
_FeeRule(
fee_rate=Decimal("0.001"),
minimum_fee=Decimal("1.00"),
fixed_fee=Decimal("0"),
),
Decimal("1000"),
Decimal("1.00"),
),
],
)
def test_compute_fee_honours_rate_minimum_fixed_priority(
rule: _FeeRule, gross: Decimal, expected_fee: Decimal
) -> None:
fee = _service()._compute_fee(gross, rule) # type: ignore[attr-defined]
assert fee == expected_fee
# ---------------------------------------------------------------------------
# 持仓聚合(market_value / profit_loss 派生)单测
# ---------------------------------------------------------------------------
def test_list_holdings_response_aggregates_view_model() -> None:
"""``HoldingListResponse`` 必须包含 ``holdings`` 列表项以满足前端"我的账户"渲染。
这条测试不连库:直接构造 ``HoldingListResponse``,验证每条 ``HoldingItem``
的衍生字段在响应层被填齐(含 `profit_loss_ratio` 与 `today_profit_loss`)。
"""
items = [
HoldingItem(
product_id=1,
product_code="510300",
product_name="沪深300ETF",
total_quantity=Decimal("1000.0000"),
available_quantity=Decimal("1000.0000"),
frozen_quantity=Decimal("0.0000"),
average_cost=Decimal("4.500000"),
cost_amount=Decimal("4500.00"),
latest_price=Decimal("5.0000"),
market_value=Decimal("5000.00"),
profit_loss=Decimal("500.00"),
profit_loss_ratio=Decimal("11.1111"),
today_profit_loss=Decimal("200.00"),
),
]
resp = HoldingListResponse(holdings=items)
assert resp.holdings[0].profit_loss_ratio == Decimal("11.1111")
assert resp.holdings[0].today_profit_loss == Decimal("200.00")
# ---------------------------------------------------------------------------
# PortfolioSummary schema 字段完整
# ---------------------------------------------------------------------------
def test_portfolio_summary_schema_has_total_today_profit() -> None:
fields = PortfolioSummary.model_fields # type: ignore[attr-defined]
for required in (
"total_asset",
"total_market_value",
"total_cost",
"total_profit_loss",
"total_profit_loss_ratio",
"today_profit_loss",
"today_profit_loss_ratio",
):
assert required in fields, f"PortfolioSummary 缺少字段: {required}"
def test_holding_list_response_has_required_keys() -> None:
fields = HoldingListResponse.model_fields # type: ignore[attr-defined]
assert "holdings" in fields
item = HoldingItem.model_fields # type: ignore[attr-defined]
for required in (
"product_code",
"product_name",
"total_quantity",
"available_quantity",
"average_cost",
"latest_price",
"market_value",
"profit_loss",
"profit_loss_ratio",
"today_profit_loss",
):
assert required in item, f"HoldingItem 缺少字段: {required}"
def test_cash_ledger_response_keeps_envelope_contract() -> None:
"""Cash-ledger 端点 ``HoldingListResponse`` 返回 ``entries``(资金账流)。
字段命名 ``entries`` 而非 ``items``,与同目录 ``HoldingListResponse.holdings``
区分;controller 用 ``envelope`` 包整体,保持 §3.3 信封契约。
"""
fields = CashLedgerResponse.model_fields # type: ignore[attr-defined]
assert "entries" in fields