Add bulkDocs test

packages/backend-core/src/db/couch/tests/DatabaseImpl.spec.ts

@@ -44,4 +44,42 @@ describe("DatabaseImpl", () => {
       })
     })
   })
+
+  describe("bulkDocs", () => {
+    it("persists createdAt and updatedAt fields", async () => {
+      const ids = generator.unique(() => generator.guid(), 5)
+      await db.bulkDocs(ids.map(id => ({ _id: id })))
+
+      for (const id of ids) {
+        expect(await db.get(id)).toEqual({
+          _id: id,
+          _rev: expect.any(String),
+          createdAt: initialTime.toISOString(),
+          updatedAt: initialTime.toISOString(),
+        })
+      }
+    })
+
+    it("updates updated at fields", async () => {
+      const ids = generator.unique(() => generator.guid(), 5)
+
+      await db.bulkDocs(ids.map(id => ({ _id: id })))
+      tk.travel(100)
+
+      const docsToUpdate = await Promise.all(
+        ids.map(async id => ({ ...(await db.get(id)), newValue: 123 }))
+      )
+      await db.bulkDocs(docsToUpdate)
+
+      for (const id of ids) {
+        expect(await db.get(id)).toEqual({
+          _id: id,
+          _rev: expect.any(String),
+          newValue: 123,
+          createdAt: initialTime.toISOString(),
+          updatedAt: new Date().toISOString(),
+        })
+      }
+    })
+  })
 })