baseline: 批次A-D 成果 + membership 半成品（测试红）

2026-09-11 23:11:35 +08:00
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+"""sales 集成测试：销售单过账 → 扣库存 + 生成应收。"""
+
+import pytest
+from decimal import Decimal
+from model_bakery import baker
+from rest_framework.test import APIClient
+from rest_framework_simplejwt.tokens import RefreshToken
+
+from apps.inventory import services as inv_services
+from apps.inventory.models import Stock
+from apps.finance.models import Receivable
+from apps.sales import services
+from apps.sales.models import SalesBill
+
+
+@pytest.fixture
+def auth_client(db, user, tenant):
+    c = APIClient()
+    refresh = RefreshToken.for_user(user)
+    c.credentials(
+        HTTP_AUTHORIZATION=f"Bearer {refresh.access_token}",
+        HTTP_X_TENANT_ID=tenant.code,
+    )
+    return c
+
+
+@pytest.fixture
+def customer(tenant):
+    from apps.partner.models import Customer
+    return baker.make(Customer, tenant=tenant, code="C001", name="客户A")
+
+
+@pytest.fixture
+def warehouse(tenant):
+    from apps.inventory.models import Warehouse
+    return baker.make(Warehouse, tenant=tenant, code="WH01", name="主仓")
+
+
+@pytest.fixture
+def product(tenant):
+    from apps.catalog.models import Product
+    return baker.make(Product, tenant=tenant, code="P001", name="商品A")
+
+
+# --- services 单元测试 ---
+
+
+@pytest.mark.django_db
+def test_create_sales_bill_calculates_total(tenant, customer, warehouse, product):
+    bill = services.create_sales_bill(
+        tenant=tenant, customer=customer, warehouse=warehouse,
+        lines=[
+            {"product": product, "quantity": Decimal("5"), "unit_price": Decimal("12")},
+            {"product": product, "quantity": Decimal("3"), "unit_price": Decimal("12")},
+        ],
+    )
+    assert bill.total_amount == Decimal("96")
+    assert bill.state == "draft"
+    assert bill.lines.count() == 2
+
+
+@pytest.mark.django_db
+def test_confirm_sales_bill_deducts_stock_and_creates_receivable(
+    tenant, customer, warehouse, product
+):
+    # 准备库存 20
+    inv_services.inbound(
+        tenant=tenant, warehouse=warehouse, product=product,
+        quantity=Decimal("20"), unit_cost=Decimal("8"),
+    )
+    # 销售 7
+    bill = services.create_sales_bill(
+        tenant=tenant, customer=customer, warehouse=warehouse,
+        lines=[{"product": product, "quantity": Decimal("7"), "unit_price": Decimal("12")}],
+    )
+    services.confirm_sales_bill(bill)
+
+    # 库存
+    stock = Stock.objects.get(tenant=tenant, warehouse=warehouse, product=product)
+    assert stock.on_hand == Decimal("13")
+
+    # 应收
+    recv = Receivable.objects.get(tenant=tenant, source_ref=bill.bill_no)
+    assert recv.total_amount == Decimal("84")
+    assert recv.status == "open"
+
+    # 单据状态
+    bill.refresh_from_db()
+    assert bill.state == "confirmed"
+
+
+@pytest.mark.django_db
+def test_confirm_insufficient_stock_rolls_back(tenant, customer, warehouse, product):
+    inv_services.inbound(
+        tenant=tenant, warehouse=warehouse, product=product,
+        quantity=Decimal("5"),
+    )
+    bill = services.create_sales_bill(
+        tenant=tenant, customer=customer, warehouse=warehouse,
+        lines=[{"product": product, "quantity": Decimal("10"), "unit_price": Decimal("12")}],
+    )
+    with pytest.raises(inv_services.InsufficientStock):
+        services.confirm_sales_bill(bill)
+
+    # 库存不变（事务回滚）
+    stock = Stock.objects.get(tenant=tenant, warehouse=warehouse, product=product)
+    assert stock.on_hand == Decimal("5")
+
+    # 应收不生成
+    assert Receivable.objects.filter(tenant=tenant, source_ref=bill.bill_no).count() == 0
+
+    # 单据仍是 draft
+    bill.refresh_from_db()
+    assert bill.state == "draft"
+
+
+@pytest.mark.django_db
+def test_confirm_twice_raises(tenant, customer, warehouse, product):
+    inv_services.inbound(
+        tenant=tenant, warehouse=warehouse, product=product,
+        quantity=Decimal("10"),
+    )
+    bill = services.create_sales_bill(
+        tenant=tenant, customer=customer, warehouse=warehouse,
+        lines=[{"product": product, "quantity": Decimal("3"), "unit_price": Decimal("10")}],
+    )
+    services.confirm_sales_bill(bill)
+    with pytest.raises(ValueError):
+        services.confirm_sales_bill(bill)
+
+
+# --- API 集成测试 ---
+
+
+@pytest.mark.django_db
+def test_api_list_sales_bills(auth_client, tenant, customer, warehouse):
+    baker.make(
+        SalesBill, tenant=tenant, customer=customer, warehouse=warehouse,
+        bill_no="XS0001", total_amount=Decimal("100"),
+    )
+    resp = auth_client.get("/api/v1/sales/bills/")
+    assert resp.status_code == 200
+    assert resp.json()["count"] == 1
+
+
+@pytest.mark.django_db
+def test_api_list_sales_orders(auth_client, tenant, customer, warehouse):
+    from apps.sales.models import SalesOrder
+    baker.make(
+        SalesOrder, tenant=tenant, customer=customer, warehouse=warehouse,
+        bill_no="SO0001", total_amount=Decimal("0"),
+    )
+    resp = auth_client.get("/api/v1/sales/orders/")
+    assert resp.status_code == 200
+    assert resp.json()["count"] == 1