test(a3p): retain initial.test.js

a3p-integration/proposals/n:upgrade-next/initial.test.js

@@ -0,0 +1,24 @@
+import test from 'ava';
+import '@endo/init/debug.js';
+
+import { getVatDetails } from '@agoric/synthetic-chain';
+
+const vats = {
+  network: { incarnation: 2 },
+  ibc: { incarnation: 2 },
+  localchain: { incarnation: 2 },
+  orchestration: { incarnation: 1 },
+  transfer: { incarnation: 2 },
+  walletFactory: { incarnation: 6 },
+  zoe: { incarnation: 4 },
+  // Terminated in a future proposal.
+  '-ATOM-USD_price_feed-governor': { incarnation: 0 },
+};
+
+test(`vat details`, async t => {
+  const actual = {};
+  for await (const vatName of Object.keys(vats)) {
+    actual[vatName] = await getVatDetails(vatName);
+  }
+  t.like(actual, vats, `vat details are alike`);
+});

a3p-integration/proposals/n:upgrade-next/test.sh

@@ -1,5 +1,6 @@
 #!/bin/bash
 
+yarn ava initial.test.js
 yarn ava replaceFeeDistributor.test.js
 yarn ava mintHolder.test.js
 yarn ava provisionPool.test.js