chore(a3p): restore localchain test

a3p-integration/proposals/a:upgrade-next/localchain.test.js

@@ -0,0 +1,33 @@
+import test from 'ava';
+
+import { agd, evalBundles, waitForBlock } from '@agoric/synthetic-chain';
+
+const SUBMISSION_DIR = 'localchaintest-submission';
+
+const readPublished = async path => {
+  const { value } = await agd.query(
+    'vstorage',
+    'data',
+    '--output',
+    'json',
+    `published.${path}`,
+  );
+  if (value === '') {
+    return undefined;
+  }
+  const obj = JSON.parse(value);
+  return obj.values[0];
+};
+
+// The testing assertions are in the submission that runs in the core-eval.
+// The test here runs that and confirms the eval made it through all the assertions.
+test(`localchain passes tests`, async t => {
+  await evalBundles(SUBMISSION_DIR);
+
+  const nodePath = 'test.localchain';
+  const nodeValue = JSON.stringify({ success: true });
+
+  await waitForBlock(2); // enough time for core eval to execute ?
+
+  t.is(await readPublished(nodePath), nodeValue);
+});

a3p-integration/proposals/a:upgrade-next/package.json

@@ -7,6 +7,7 @@
       "coreProposals": []
     },
     "sdk-generate": [
+      "vats/test-localchain.js localchaintest-submission",
       "vats/upgrade-bank.js upgrade-bank",
       "vats/upgrade-provisionPool.js upgrade-provisionPool",
       "testing/add-LEMONS.js add-LEMONS",