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feat(trading): 下单流程每步证据带整页截图（html + png + meta 三件套）

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- site_interact 新增 PageSnapshot{html, screenshot} 证据载体：
  add_to_cart 截商品页、verify_cart 截 cart 页、enter_checkout 截落地
  确认页、pay 截付款检查后的完成页；截图全部 best-effort，失败记
  warning 留空，不掩盖动作结果
- submit_order 改返回 SubmitOutcome{site_order_id, evidence}：完成页
  HTML+截图首次随 step 4 落盘（此前只有 meta）
- fetch_order_detail 详情页截图挂在 OrderStatusSnapshot.screenshot，
  监控步骤 write_step 带 png；只读查询通道按字段挑出，不受影响
- runner._run_step 认 PageSnapshot（旧 str 契约保留兼容），step 0/3/4
  显式传 png
- 测试：桩同步新契约；新增每步三件套齐全的全流程断言；clear_cart
  场景单测补截图断言
- 真账号复验 verify_cart_clear.py：两场景截图均合法 PNG，落盘
  .probe/cart_clear/ 并目检为空车页渲染
This commit is contained in:
q792602257
2026-08-17 08:56:11 +08:00
parent 086ab82614
commit f31e127ba7
5 changed files with 304 additions and 58 deletions
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tests/test_worker_runner.py
+105 -12
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@@ -27,7 +27,13 @@ from app.trading.worker.evidence import EvidenceStore
from app.trading.worker.local_db import LocalDB
from app.trading.worker.models import LeaseTask
from app.trading.worker.runner import WorkerRunner
from app.trading.worker.site_interact import CheckoutSummary, OrderStatusSnapshot, SiteInteractor
from app.trading.worker.site_interact import (
CheckoutSummary,
OrderStatusSnapshot,
PageSnapshot,
SiteInteractor,
SubmitOutcome,
)
# ---- 桩：网关客户端 ----
@@ -296,7 +302,7 @@ async def test_unimplemented_site_interaction_becomes_needs_human(
return None
async def _checkout_html(task): # noqa: ANN001
return "<html>checkout</html>"
return PageSnapshot(html="<html>checkout</html>", screenshot=b"fake-checkout-png")
async def _unimplemented(html): # noqa: ANN001
raise NotImplementedError("模拟：假装 parse_checkout 还没实现")
@@ -375,7 +381,7 @@ async def test_amount_guard_blocks_when_payable_exceeds_limit(
call_log.append(task.task_id + ":step")
async def _checkout_html(task): # noqa: ANN001
return "<html>checkout</html>"
return PageSnapshot(html="<html>checkout</html>", screenshot=b"fake-checkout-png")
async def _parse(html: str):
return CheckoutSummary(payable_yen=50000)
@@ -385,7 +391,10 @@ async def test_amount_guard_blocks_when_payable_exceeds_limit(
async def _submit(task): # noqa: ANN001
nonlocal submit_called
submit_called = True
return "ord-1"
return SubmitOutcome(
site_order_id="ord-1",
evidence=PageSnapshot(html="<html>complete</html>", screenshot=b"fake-submit-png"),
)
runner._site.add_to_cart = _ok # type: ignore[assignment]
runner._site.verify_cart = _ok # type: ignore[assignment]
@@ -415,7 +424,7 @@ async def test_amount_guard_honors_intent_max_total_yen(
return None
async def _checkout_html(task): # noqa: ANN001
return "<html>checkout</html>"
return PageSnapshot(html="<html>checkout</html>", screenshot=b"fake-checkout-png")
async def _parse(html: str):
return CheckoutSummary(payable_yen=8000)
@@ -469,13 +478,16 @@ async def test_execute_clears_cart_before_adding(
return None
async def _checkout_html(task): # noqa: ANN001
return "<html>checkout</html>"
return PageSnapshot(html="<html>checkout</html>", screenshot=b"fake-checkout-png")
async def _parse(html: str):
return CheckoutSummary(payable_yen=297)
async def _submit(task): # noqa: ANN001
return "ord-1"
return SubmitOutcome(
site_order_id="ord-1",
evidence=PageSnapshot(html="<html>complete</html>", screenshot=b"fake-submit-png"),
)
async def _pay(task, site_order_id): # noqa: ANN001
return None
@@ -570,7 +582,12 @@ async def test_clear_cart_step_writes_evidence_but_no_gateway_report(
这一步的 evidence_ref。
"""
async def _clear(): # noqa: ANN001
return {"removed_count": 1, "cart_count": 0, "html": "<html>cart</html>"}
return {
"removed_count": 1,
"cart_count": 0,
"html": "<html>cart</html>",
"screenshot": b"fake-clear-png",
}
async def _noop(task): # noqa: ANN001
return None
@@ -589,6 +606,7 @@ async def test_clear_cart_step_writes_evidence_but_no_gateway_report(
step_dir = evidence.step_dir("t1")
html_text = (step_dir / "00-cart-clear.html").read_text(encoding="utf-8")
assert html_text == "<html>cart</html>"
assert (step_dir / "00-cart-clear.png").read_bytes() == b"fake-clear-png"
meta = json.loads((step_dir / "00-cart-clear.meta.json").read_text(encoding="utf-8"))
assert meta == {"step": "cart-clear", "removed_count": 1, "cart_count": 0}
# 本机卫生步骤：gateway 的任何 report 都不携带 step-0 的 evidence_ref
@@ -604,7 +622,12 @@ async def test_clear_cart_evidence_written_when_guard_blocks(
被拦转 needs_human 时这份现场就是排查依据——证据先于闸门判断落盘。
"""
async def _clear(): # noqa: ANN001
return {"removed_count": 2, "cart_count": 2, "html": "<html>leftover</html>"}
return {
"removed_count": 2,
"cart_count": 2,
"html": "<html>leftover</html>",
"screenshot": b"fake-leftover-png",
}
runner._site.clear_cart = _clear # type: ignore[assignment]
@@ -612,10 +635,77 @@ async def test_clear_cart_evidence_written_when_guard_blocks(
step_dir = evidence.step_dir("t1")
assert (step_dir / "00-cart-clear.html").exists()
assert (step_dir / "00-cart-clear.png").read_bytes() == b"fake-leftover-png"
meta = json.loads((step_dir / "00-cart-clear.meta.json").read_text(encoding="utf-8"))
assert meta["cart_count"] == 2
async def test_every_order_step_writes_html_png_and_meta(
runner: WorkerRunner, evidence: EvidenceStore
):
"""下单流程每一步（step 0 清车 + step 1-5）都落 html + png + meta 三件套
排查问题时每一步都要有现场可看：页面 HTML、整页截图、步骤 meta 缺一不可。
"""
async def _clear(): # noqa: ANN001
return {
"removed_count": 0,
"cart_count": 0,
"html": "<html>cart</html>",
"screenshot": b"png-0",
}
async def _add(task): # noqa: ANN001
return PageSnapshot(html="<html>added</html>", screenshot=b"png-1")
async def _verify(task): # noqa: ANN001
return PageSnapshot(html="<html>verified</html>", screenshot=b"png-2")
async def _checkout(task): # noqa: ANN001
return PageSnapshot(html="<html>checkout</html>", screenshot=b"png-3")
async def _parse(html: str):
return CheckoutSummary(payable_yen=297)
async def _submit(task): # noqa: ANN001
return SubmitOutcome(
site_order_id="ord-1",
evidence=PageSnapshot(html="<html>done</html>", screenshot=b"png-4"),
)
async def _pay(task, site_order_id): # noqa: ANN001
return PageSnapshot(html="<html>paid</html>", screenshot=b"png-5")
async def _unchanged(order_id: str): # noqa: ANN001
# 监控不污染断言：found=True 但无状态变化，轮询到上限自行退出
return OrderStatusSnapshot(found=True, order_state=None)
runner._site.clear_cart = _clear # type: ignore[assignment]
runner._site.add_to_cart = _add # type: ignore[assignment]
runner._site.verify_cart = _verify # type: ignore[assignment]
runner._site.enter_checkout = _checkout # type: ignore[assignment]
runner._site.parse_checkout = _parse # type: ignore[assignment]
runner._site.submit_order = _submit # type: ignore[assignment]
runner._site.pay = _pay # type: ignore[assignment]
runner._site.check_order_status = _unchanged # type: ignore[assignment]
await runner.handle(_make_task(task_id="t1"))
step_dir = evidence.step_dir("t1")
expected = {
"00-cart-clear": b"png-0",
"01-cart-add": b"png-1",
"02-cart-check": b"png-2",
"03-order-confirm": b"png-3",
"04-order-submit": b"png-4",
"05-payment": b"png-5",
}
for stem, png in expected.items():
assert (step_dir / f"{stem}.png").read_bytes() == png, f"{stem} 缺整页截图"
assert (step_dir / f"{stem}.html").exists(), f"{stem} 缺页面 HTML"
assert (step_dir / f"{stem}.meta.json").exists(), f"{stem} 缺 meta"
# ---- 证据在 report 之前落盘（§9 第 11 条）----
@@ -647,7 +737,7 @@ async def test_evidence_files_exist_before_each_report(
return None
async def _checkout_html(task): # noqa: ANN001
return "<html>checkout</html>"
return PageSnapshot(html="<html>checkout</html>", screenshot=b"fake-checkout-png")
async def _unimplemented(html): # noqa: ANN001
raise NotImplementedError("模拟：假装 parse_checkout 还没实现")
@@ -682,13 +772,16 @@ async def test_successful_order_spawns_monitor_task_and_cancel_monitors_cleans_u
return None
async def _checkout_html(task): # noqa: ANN001
return "<html>checkout</html>"
return PageSnapshot(html="<html>checkout</html>", screenshot=b"fake-checkout-png")
async def _parse(html: str):
return CheckoutSummary(payable_yen=297)
async def _submit(task): # noqa: ANN001
return "306087-20260813-0863947697"
return SubmitOutcome(
site_order_id="306087-20260813-0863947697",
evidence=PageSnapshot(html="<html>complete</html>", screenshot=b"fake-submit-png"),
)
async def _pay(task, site_order_id): # noqa: ANN001
return None