Deleting a collection should detach associated drafts from it (#5082)

Co-authored-by: Tom Moor <tom.moor@gmail.com>

server/queues/tasks/DetachDraftsFromCollectionTask.test.ts

@@ -0,0 +1,33 @@
+import { Document } from "@server/models";
+import { buildCollection, buildDocument } from "@server/test/factories";
+import { setupTestDatabase } from "@server/test/support";
+import DetachDraftsFromCollectionTask from "./DetachDraftsFromCollectionTask";
+
+setupTestDatabase();
+
+describe("DetachDraftsFromCollectionTask", () => {
+  const ip = "127.0.0.1";
+  it("should detach drafts from deleted collection", async () => {
+    const collection = await buildCollection();
+    const document = await buildDocument({
+      title: "test",
+      collectionId: collection.id,
+      publishedAt: null,
+      createdById: collection.createdById,
+      teamId: collection.teamId,
+    });
+    await collection.destroy();
+
+    const task = new DetachDraftsFromCollectionTask();
+    await task.perform({
+      collectionId: collection.id,
+      ip,
+      actorId: collection.createdById,
+    });
+
+    const draft = await Document.findByPk(document.id);
+    expect(draft).not.toBe(null);
+    expect(draft?.deletedAt).toBe(null);
+    expect(draft?.collectionId).toBe(null);
+  });
+});