删除云图时自动同步图鉴：移除无云图的类型、替换首个云图引用，补充测试覆盖

tests/test_collections.py

@@ -2,7 +2,7 @@ import uuid
 
 from fastapi.testclient import TestClient
 
-from tests.conftest import bearer, png_bytes, register_and_confirm
+from tests.conftest import bearer, png_bytes, register_and_confirm, upload_cloud
 
 
 def test_my_collections_after_upload(client: TestClient, monkeypatch) -> None:
@@ -30,3 +30,64 @@ def test_my_collections_after_upload(client: TestClient, monkeypatch) -> None:
 def test_my_collections_unauthenticated(client: TestClient) -> None:
     r = client.get("/api/v1/collections/me")
     assert r.status_code == 401
+
+
+def test_collection_removed_after_deleting_last_cloud(client: TestClient, monkeypatch) -> None:
+    info = register_and_confirm(
+        client, monkeypatch,
+        f"coll-delete-{uuid.uuid4().hex[:8]}@example.com",
+        "collpass1", "图鉴删除用户",
+    )
+    upload = upload_cloud(client, info["token"], cloud_type_id="1")
+    cloud_id = upload.json()["cloud"]["id"]
+
+    r = client.delete(f"/api/v1/clouds/{cloud_id}", headers=bearer(info["token"]))
+    assert r.status_code == 200
+
+    r = client.get("/api/v1/collections/me", headers=bearer(info["token"]))
+    assert r.status_code == 200
+    assert r.json() == []
+
+    r = client.get("/api/v1/profiles/me", headers=bearer(info["token"]))
+    assert r.status_code == 200
+    assert r.json()["collection_count"] == 0
+
+
+def test_collection_uses_next_cloud_after_deleting_first(client: TestClient, monkeypatch) -> None:
+    info = register_and_confirm(
+        client, monkeypatch,
+        f"coll-replace-{uuid.uuid4().hex[:8]}@example.com",
+        "collpass1", "图鉴替换用户",
+    )
+    first = upload_cloud(client, info["token"], cloud_type_id="1").json()["cloud"]
+    second = upload_cloud(client, info["token"], cloud_type_id="1").json()["cloud"]
+
+    r = client.delete(f"/api/v1/clouds/{first['id']}", headers=bearer(info["token"]))
+    assert r.status_code == 200
+
+    r = client.get("/api/v1/collections/me", headers=bearer(info["token"]))
+    assert r.status_code == 200
+    assert len(r.json()) == 1
+    assert r.json()[0]["first_cloud_id"] == second["id"]
+    assert r.json()[0]["first_cloud"]["id"] == second["id"]
+
+
+def test_batch_delete_removes_affected_collections(client: TestClient, monkeypatch) -> None:
+    info = register_and_confirm(
+        client, monkeypatch,
+        f"coll-batch-{uuid.uuid4().hex[:8]}@example.com",
+        "collpass1", "图鉴批删用户",
+    )
+    first = upload_cloud(client, info["token"], cloud_type_id="1").json()["cloud"]
+    second = upload_cloud(client, info["token"], cloud_type_id="2").json()["cloud"]
+
+    r = client.post(
+        "/api/v1/clouds/batch-delete",
+        headers=bearer(info["token"]),
+        json={"ids": [first["id"], second["id"]]},
+    )
+    assert r.status_code == 200
+
+    r = client.get("/api/v1/collections/me", headers=bearer(info["token"]))
+    assert r.status_code == 200
+    assert r.json() == []