From 14f700a33a02442bcf72c530b1d96b39060ae99e Mon Sep 17 00:00:00 2001
From: Turadg Aleahmad <turadg@agoric.com>
Date: Thu, 23 May 2024 11:12:39 -0700
Subject: [PATCH] test: bank balances

---
 .../test/examples/swapExample.test.ts             | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/packages/orchestration/test/examples/swapExample.test.ts b/packages/orchestration/test/examples/swapExample.test.ts
index 86b364bf4412..e4b826f2728e 100644
--- a/packages/orchestration/test/examples/swapExample.test.ts
+++ b/packages/orchestration/test/examples/swapExample.test.ts
@@ -9,6 +9,7 @@ import { makeHeapZone } from '@agoric/zone';
 import { prepareLocalChainTools } from '@agoric/vats/src/localchain.js';
 import { buildRootObject as buildBankVatRoot } from '@agoric/vats/src/vat-bank.js';
 import { withAmountUtils } from '@agoric/zoe/tools/test-utils.js';
+import { makeFakeBankBridge } from '@agoric/vats/tools/fake-bridge.js';
 import { makeFakeLocalchainBridge } from '../supports.js';
 
 const dirname = path.dirname(new URL(import.meta.url).pathname);
@@ -26,11 +27,12 @@ test('start', async t => {
 
   const zone = makeHeapZone();
   const { makeLocalChain } = prepareLocalChainTools(zone.subZone('localchain'));
+
   const bankManager = await buildBankVatRoot(
     undefined,
     undefined,
     zone.mapStore('bankManager'),
-  ).makeBankManager();
+  ).makeBankManager(makeFakeBankBridge(zone));
 
   await E(bankManager).addAsset('uist', 'IST', 'Inter Stable Token', issuerKit);
 
@@ -67,6 +69,14 @@ test('start', async t => {
     'Swap for TIA and stake',
   );
 
+  const bank = await E(bankManager).getBankForAddress(
+    'agoric1fakeBridgeAddress',
+  );
+
+  const istPurse = await E(bank).getPurse(issuerKit.brand);
+  // bank purse is empty
+  t.like(await E(istPurse).getCurrentAmount(), stable.makeEmpty());
+
   const ten = stable.units(10);
   const userSeat = await E(zoe).offer(
     inv,
@@ -83,4 +93,7 @@ test('start', async t => {
   );
   const result = await E(userSeat).getOfferResult();
   t.is(result, undefined);
+
+  // bank purse now has the 10 IST
+  t.like(await E(istPurse).getCurrentAmount(), ten);
 });