fix: stress-test on virgin servers

package.json

@@ -116,7 +116,7 @@
     "admin-server": "nodemon bin/lamassu-admin-server --dev",
     "graphql-server": "nodemon bin/new-graphql-dev-insecure",
     "watch": "concurrently \"npm:server\" \"npm:admin-server\" \"npm:graphql-server\"",
-    "stress-test": "cd ./test/stress/ && node index.js 50 -v"
+    "stress-test": "cd ./test/stress/ && node index.js 5 -v"
   },
   "nodemonConfig": {
     "ignore": [

test/stress/scripts/create-machines.sh

@@ -46,12 +46,18 @@ EOL
 
   # Update db config
   sudo -u postgres psql -t -d lamassu_stress -c "select data from user_config where type='config' order by id desc limit 1" > config.json
+  if [[ -s config.json ]]
+  then
   NEW_CONFIG=$(node ./utils/save-config.js $NUMBER $DEVICE_ID)
   sudo -u postgres psql "lamassu_stress" << EOF
     insert into user_config(type, data, created, valid) 
     values('config', '$NEW_CONFIG', now(), 't')
 EOF
 
+  else
+    echo "file is empty"
+  fi
+
   # Add device on db
   sudo -u postgres psql "lamassu_stress" << EOF
     insert into devices(device_id, cashbox, cassette1, cassette2, paired, display, created, name, last_online, location) 

test/stress/utils/default-config.json

@@ -0,0 +1,2 @@
+{"config":{"wallets_BTC_coin":"BTC","wallets_BTC_wallet":"mock-wallet","wallets_BTC_ticker":"mock-ticker","wallets_BTC_exchange":"mock-exchange","wallets_BTC_zeroConf":"all-zero-conf","locale_id":"32cc539a-78e6-4a1d-96d8-31b7aa628e1f","locale_country":"US","locale_fiatCurrency":"USD","locale_languages":["en-US"],"locale_cryptoCurrencies":["BTC"],"commissions_minimumTx":1,"commissions_fixedFee":1,"commissions_cashOut":1,"commissions_cashIn":1,"commissions_id":"719b9dd9-1444-42fc-918a-f8b2265513ac"}}
+