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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+"""purchase 集成测试：进货单过账 → 写库存 + 生成应付。"""
+
+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.models import Stock, StockMovement
+from apps.finance.models import Payable
+from apps.purchase import services
+from apps.purchase.models import PurchaseBill
+
+
+@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 supplier(tenant):
+    from apps.partner.models import Supplier
+    return baker.make(Supplier, tenant=tenant, code="S001", name="供应商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_purchase_bill_calculates_total(tenant, supplier, warehouse, product):
+    bill = services.create_purchase_bill(
+        tenant=tenant, supplier=supplier, warehouse=warehouse,
+        lines=[
+            {"product": product, "quantity": Decimal("10"), "unit_price": Decimal("5")},
+            {"product": product, "quantity": Decimal("3"), "unit_price": Decimal("5")},
+        ],
+    )
+    assert bill.total_amount == Decimal("65")
+    assert bill.state == "draft"
+    assert bill.lines.count() == 2
+
+
+@pytest.mark.django_db
+def test_confirm_purchase_bill_writes_stock_and_payable(tenant, supplier, warehouse, product):
+    bill = services.create_purchase_bill(
+        tenant=tenant, supplier=supplier, warehouse=warehouse,
+        lines=[
+            {"product": product, "quantity": Decimal("20"), "unit_price": Decimal("8")},
+        ],
+    )
+    services.confirm_purchase_bill(bill)
+
+    # 库存
+    stock = Stock.objects.get(tenant=tenant, warehouse=warehouse, product=product)
+    assert stock.on_hand == Decimal("20")
+    assert stock.avg_cost == Decimal("8")
+
+    # 流水
+    movements = StockMovement.objects.filter(tenant=tenant)
+    assert movements.count() == 1
+    assert movements.first().source_type == "purchase"
+
+    # 应付
+    payable = Payable.objects.get(tenant=tenant, source_ref=bill.bill_no)
+    assert payable.total_amount == Decimal("160")
+    assert payable.status == "open"
+
+    # 单据状态
+    bill.refresh_from_db()
+    assert bill.state == "confirmed"
+
+
+@pytest.mark.django_db
+def test_confirm_twice_raises(tenant, supplier, warehouse, product):
+    bill = services.create_purchase_bill(
+        tenant=tenant, supplier=supplier, warehouse=warehouse,
+        lines=[{"product": product, "quantity": Decimal("5"), "unit_price": Decimal("10")}],
+    )
+    services.confirm_purchase_bill(bill)
+    with pytest.raises(ValueError):
+        services.confirm_purchase_bill(bill)
+
+
+# --- API 集成测试 ---
+
+
+@pytest.mark.django_db
+def test_api_list_purchase_bills(auth_client, tenant, supplier, warehouse, product):
+    baker.make(
+        PurchaseBill, tenant=tenant, supplier=supplier, warehouse=warehouse,
+        bill_no="PB0001", total_amount=Decimal("100"),
+    )
+    resp = auth_client.get("/api/v1/purchase/bills/")
+    assert resp.status_code == 200
+    assert resp.json()["count"] == 1
+
+
+@pytest.mark.django_db
+def test_api_list_purchase_orders(auth_client, tenant, supplier, warehouse):
+    from apps.purchase.models import PurchaseOrder
+    baker.make(
+        PurchaseOrder, tenant=tenant, supplier=supplier, warehouse=warehouse,
+        bill_no="PO0001", total_amount=Decimal("0"),
+    )
+    resp = auth_client.get("/api/v1/purchase/orders/")
+    assert resp.status_code == 200
+    assert resp.json()["count"] == 1