feat(tplus): 新增 T+ 只读同步服务与同步管理

backend/tests/unit/test_tplus_task_service.py

@@ -0,0 +1,93 @@
+"""同一意图不可重复排队，重试必须保留原始批次和范围。"""
+
+from uuid import uuid4
+
+import pytest
+from sqlalchemy import func, select
+
+from app.core.exceptions import BadRequestError
+from app.models import TPlusSyncBatch, TPlusSyncError
+from app.schemas.tplus import TPlusCreateIn, TPlusRetryIn
+from app.services.tplus import task_service
+
+
+def _create(**kwargs):
+    return TPlusCreateIn(request_key=uuid4(), entity_types=["products"], **kwargs)
+
+
+def test_同键同意图复用同一批次(tplus_session):
+    request = _create()
+    first = task_service.create_task(tplus_session, request)
+    second = task_service.create_task(tplus_session, request)
+    assert first.id == second.id
+    assert first.status == "QUEUED"
+    assert first.started_at is None
+    assert first.entity_types_json == ["products"]
+    assert tplus_session.scalar(select(func.count()).select_from(TPlusSyncBatch)) == 1
+
+
+def test_同键不同范围拒绝(tplus_session):
+    request = _create()
+    task_service.create_task(tplus_session, request)
+    changed = TPlusCreateIn(request_key=request.request_key, entity_types=["personnel"])
+    with pytest.raises(BadRequestError, match="幂等"):
+        task_service.create_task(tplus_session, changed)
+
+
+def test_失败重试创建新批次并保留原错误(tplus_session):
+    parent = task_service.create_task(tplus_session, _create())
+    parent.status = "FAILED"
+    tplus_session.add(
+        TPlusSyncError(
+            batch_no=parent.batch_no,
+            entity_type="products",
+            source_table="AA_Inventory",
+            error_code="READ_ERROR",
+            error_message="读取失败",
+        )
+    )
+    tplus_session.commit()
+    retry = TPlusRetryIn(request_key=uuid4())
+    child = task_service.retry_task(tplus_session, parent.batch_no, retry)
+    replay = task_service.retry_task(tplus_session, parent.batch_no, retry)
+    assert child.id == replay.id and child.id != parent.id
+    assert child.parent_batch_no == parent.batch_no
+    assert parent.status == "FAILED"
+    assert tplus_session.scalar(select(TPlusSyncError.retry_count)) == 1
+
+
+def test_已有未完成重试时不重复排队(tplus_session):
+    parent = task_service.create_task(tplus_session, _create())
+    parent.status = "FAILED"
+    tplus_session.commit()
+    task_service.retry_task(tplus_session, parent.batch_no, TPlusRetryIn(request_key=uuid4()))
+    with pytest.raises(BadRequestError, match="重试任务"):
+        task_service.retry_task(tplus_session, parent.batch_no, TPlusRetryIn(request_key=uuid4()))
+
+
+def test_成功或未知历史范围不能自动重试(tplus_session):
+    parent = task_service.create_task(tplus_session, _create())
+    parent.status = "SUCCEEDED"
+    tplus_session.commit()
+    with pytest.raises(BadRequestError):
+        task_service.retry_task(tplus_session, parent.batch_no, TPlusRetryIn(request_key=uuid4()))
+    parent.status, parent.entity_types_json = "FAILED", None
+    tplus_session.commit()
+    with pytest.raises(BadRequestError, match="范围"):
+        task_service.retry_task(tplus_session, parent.batch_no, TPlusRetryIn(request_key=uuid4()))
+
+
+def test_关联核验不需要读取实体范围(tplus_session):
+    batch = task_service.create_task(
+        tplus_session, TPlusCreateIn(task_type="AUDIT", request_key=uuid4())
+    )
+    assert batch.sync_mode == "AUDIT"
+    assert batch.entity_types_json == []
+
+
+def test_预留增量批次不得静默改为全量重试(tplus_session):
+    batch = task_service.create_task(tplus_session, _create())
+    batch.status, batch.sync_mode = "FAILED", "INCREMENTAL"
+    tplus_session.commit()
+    with pytest.raises(BadRequestError, match="方式"):
+        task_service.retry_task(tplus_session, batch.batch_no, TPlusRetryIn(request_key=uuid4()))