feat: update migration test page (#2871)

packages/y-indexeddb/src/__tests__/index.spec.ts

@@ -20,6 +20,7 @@ import {
   downloadBinary,
   getMilestones,
   markMilestone,
+  overwriteBinary,
   revertUpdate,
   setMergeCount,
 } from '../index';
@@ -488,4 +489,17 @@ describe('utils', () => {
       }, 0)
     );
   });
+
+  test('overwrite binary', async () => {
+    await overwriteBinary('test', new Uint8Array([1, 2, 3]));
+    {
+      const binary = await downloadBinary('test');
+      expect(binary).toEqual(new Uint8Array([1, 2, 3]));
+    }
+    await overwriteBinary('test', new Uint8Array([0, 0]));
+    {
+      const binary = await downloadBinary('test');
+      expect(binary).toEqual(new Uint8Array([0, 0]));
+    }
+  });
 });

packages/y-indexeddb/src/utils.ts

@@ -143,3 +143,24 @@ export async function downloadBinary(
     return mergeUpdates(doc.updates.map(({ update }) => update));
   }
 }
+
+export async function overwriteBinary(
+  guid: string,
+  update: UpdateMessage['update'],
+  dbName = DEFAULT_DB_NAME
+) {
+  const dbPromise = openDB<BlockSuiteBinaryDB>(dbName, dbVersion, {
+    upgrade: upgradeDB,
+  });
+  const db = await dbPromise;
+  const t = db.transaction('workspace', 'readwrite').objectStore('workspace');
+  await t.put({
+    id: guid,
+    updates: [
+      {
+        timestamp: Date.now(),
+        update,
+      },
+    ],
+  });
+}