test(blockfrost): add e2e test for big number metadata

packages/blockfrost/src/blockfrostWalletProvider.ts

@@ -256,7 +256,6 @@ export const blockfrostWalletProvider = (options: Options, logger = dummyLogger)
         // eslint-disable-next-line @typescript-eslint/no-explicit-any
         const { json_metadata, label } = metadatum as any;
         if (!json_metadata || !label) return map;
-        // not sure how Blockfrost represents integer metadatum. Might need to convert to bigint here.
         map[label] = json_metadata;
         return map;
       }, {} as Cardano.MetadatumMap);

packages/blockfrost/test/e2e/queryTransactions.test.ts

@@ -0,0 +1,14 @@
+import { walletProvider } from './config';
+
+describe('blockfrostWalletProvider', () => {
+  describe('queryTransactionsByHashes', () => {
+    it('parses metadata correctly', async () => {
+      const [tx] = await walletProvider.queryTransactionsByHashes([
+        '84801fb64a9c5078c406ead24017ba0b069ef6ac6446fef8bdb8f97bade3cfa5'
+      ]);
+      expect(tx.auxiliaryData!.body.blob!['9223372036854775707']).toEqual(
+        '9223372036854775707922337203685477570792233720368547757079223372'
+      );
+    });
+  });
+});