fix: --recover to get mnemonic from file

packages/synthetic-chain/public/upgrade-test-scripts/keys_for_test_only/gov3.key

@@ -1 +1 @@
-spike siege world rather ordinary upper napkin voice brush oppose junior route trim crush expire angry seminar anchor panther piano image pepper chest alone
+tackle hen gap lady bike explain erode midnight marriage wide upset culture model select dial trial swim wood step scan intact what card symptom

packages/synthetic-chain/public/upgrade-test-scripts/keys_for_test_only/validator.key

@@ -1 +1 @@
-spike siege world rather ordinary upper napkin voice brush oppose junior route trim crush expire angry seminar anchor panther piano image pepper chest alone
+soap hub stick bomb dish index wing shield cruel board siren force glory assault rotate busy area topple resource okay clown wedding hint unhappy

packages/synthetic-chain/public/upgrade-test-scripts/run_prepare_zero.sh

@@ -13,7 +13,7 @@ agd init localnet --chain-id "$CHAINID"
 
 allaccounts=("gov1" "gov2" "gov3" "user1" "validator")
 for i in "${allaccounts[@]}"; do
-  cat "/usr/src/upgrade-test-scripts/keys_for_test_only/$i.key" | agd keys add $i --keyring-backend=test 2>&1
+  cat "/usr/src/upgrade-test-scripts/keys_for_test_only/$i.key" | agd keys add $i --recover --keyring-backend=test 2>&1
 done
 
 source /usr/src/upgrade-test-scripts/env_setup.sh

proposals/16:upgrade-8/sanity.test.js

@@ -0,0 +1,30 @@
+/** @file adapted from upgrade-9's sanity, ensure addresses are what we expected */
+import test from 'ava';
+
+import {
+  GOV1ADDR,
+  GOV2ADDR,
+  GOV3ADDR,
+  USER1ADDR,
+  VALIDATORADDR,
+} from '@agoric/synthetic-chain/src/lib/constants.js';
+
+test('gov1 address', async t => {
+  t.is(GOV1ADDR, 'agoric1ee9hr0jyrxhy999y755mp862ljgycmwyp4pl7q');
+});
+
+test('gov2 address', async t => {
+  t.is(GOV2ADDR, 'agoric1wrfh296eu2z34p6pah7q04jjuyj3mxu9v98277');
+});
+
+test('gov3 address', async t => {
+  t.is(GOV3ADDR, 'agoric1ydzxwh6f893jvpaslmaz6l8j2ulup9a7x8qvvq');
+});
+
+test('user1 address', async t => {
+  t.is(USER1ADDR, 'agoric1rwwley550k9mmk6uq6mm6z4udrg8kyuyvfszjk');
+});
+
+test('validator address', async t => {
+  t.is(VALIDATORADDR, 'agoric1estsewt6jqsx77pwcxkn5ah0jqgu8rhgflwfdl');
+});