Add manual wallet sanity test

multinode-demo/test/wallet-sanity.sh

@@ -0,0 +1,35 @@
+#!/bin/bash -e
+#
+# Wallet sanity test
+#
+
+here=$(dirname "$0")
+cd "$here"
+
+wallet="../wallet.sh $1"
+
+# Tokens transferred to this address are lost forever...
+garbage_address=vS3ngn1TfQmpsW1Z4NkLuqNAQFF3dYQw8UZ6TCx9bmq
+
+check_balance_output() {
+  declare expected_output="$1"
+  exec 42>&1
+  output=$($wallet balance | tee >(cat - >&42))
+  if [[ ! "$output" =~ $expected_output ]]; then
+    echo "Balance is incorrect.  Expected: $expected_output"
+    exit 1
+  fi
+}
+
+# Ensure a fresh client configuration every time
+rm -rf config-client
+
+$wallet address
+check_balance_output "No account found! Request an airdrop to get started"
+$wallet airdrop --tokens 100
+check_balance_output "Your balance is: 100"
+$wallet pay --to $garbage_address --tokens 100
+check_balance_output "Your balance is: 0"
+
+echo PASS
+exit 0