Add manual wallet sanity test

multinode-demo/test/wallet-sanity.sh

@@ -0,0 +1,31 @@
+#!/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() {
+  declare expected_balance="Your balance is: $1"
+  exec 42>&1
+  balance=$($wallet balance | tee >(cat - >&42))
+  if [[ ! "$balance" =~ $expected_balance ]]; then
+    echo "Balance is incorrect.  Expected: $expected_balance"
+    exit 1
+  fi
+}
+
+$wallet address
+check_balance 0
+$wallet airdrop --tokens 100
+check_balance 100
+$wallet pay --to $garbage_address --tokens 100
+check_balance 0
+
+exit 0