test(a3p): add new test case for vStorage readFully method

rel: #10574

a3p-integration/proposals/z:acceptance/test.sh

@@ -4,6 +4,11 @@ set -ueo pipefail
 # Place here any test that should be executed using the executed proposal.
 # The effects of this step are not persisted in further proposal layers.
 
+# test readFully method
+# XXX to be removed
+echo ACCEPTANCE TESTING vstorage
+yarn ava vstorage.test.js
+
 # test the state right after the previous proposals
 yarn ava initial.test.js
 

a3p-integration/proposals/z:acceptance/vstorage.test.js

@@ -0,0 +1,21 @@
+/* global fetch */
+
+import test from 'ava';
+import { makeVStorage } from '@agoric/client-utils';
+import { networkConfig } from './test-lib/index.js';
+
+test('readFully should vstorage node history', async t => {
+  const vstorage = makeVStorage({ fetch }, networkConfig);
+  const { readLatest, readAt, readFully } = vstorage;
+
+  // this test was executed with different nodes and the same behavior was observed
+  const nodePath = 'published.committees.Economic_Committee.latestQuestion';
+
+  console.log('readLatest: ', await readLatest(nodePath));
+  console.log('readLatest: ', await readAt(nodePath));
+
+  // Return a rejected promise
+  console.log('readLatest: ', await readFully(nodePath));
+
+  t.pass();
+});