Fix superfluous cast and code style nits in RPC wallet-hd.py test

Author: jonasschnelli

src/wallet/rpcwallet.cpp

@@ -2438,7 +2438,8 @@ UniValue getwalletinfo(const JSONRPCRequest& request)
     LOCK2(cs_main, pwallet->cs_wallet);
 
     UniValue obj(UniValue::VOBJ);
-    size_t kpExternalSize = (int)pwallet->KeypoolCountExternalKeys();
+
+    size_t kpExternalSize = pwalletMain->KeypoolCountExternalKeys();
     obj.push_back(Pair("walletversion", pwallet->GetVersion()));
     obj.push_back(Pair("balance",       ValueFromAmount(pwallet->GetBalance())));
     obj.push_back(Pair("unconfirmed_balance", ValueFromAmount(pwallet->GetUnconfirmedBalance())));

test/functional/wallet-hd.py

@@ -42,7 +42,7 @@ def run_test (self):
         masterkeyid = self.nodes[1].getwalletinfo()['hdmasterkeyid']
         assert_equal(len(masterkeyid), 40)
 
-        #create an internal key
+        # create an internal key
         change_addr = self.nodes[1].getrawchangeaddress()
         change_addrV= self.nodes[1].validateaddress(change_addr);
         assert_equal(change_addrV["hdkeypath"], "m/0'/1'/0'") #first internal child key
@@ -70,7 +70,7 @@ def run_test (self):
         self.nodes[0].sendtoaddress(non_hd_add, 1)
         self.nodes[0].generate(1)
 
-        #create an internal key (again)
+        # create an internal key (again)
         change_addr = self.nodes[1].getrawchangeaddress()
         change_addrV= self.nodes[1].validateaddress(change_addr);
         assert_equal(change_addrV["hdkeypath"], "m/0'/1'/1'") #second internal child key
@@ -100,15 +100,15 @@ def run_test (self):
         #connect_nodes_bi(self.nodes, 0, 1)
         assert_equal(self.nodes[1].getbalance(), num_hd_adds + 1)
 
-        #send a tx and make sure its using the internal chain for the changeoutput
+        # send a tx and make sure its using the internal chain for the changeoutput
         txid = self.nodes[1].sendtoaddress(self.nodes[0].getnewaddress(), 1)
         outs = self.nodes[1].decoderawtransaction(self.nodes[1].gettransaction(txid)['hex'])['vout'];
         keypath = ""
         for out in outs:
             if out['value'] != 1:
                 keypath = self.nodes[1].validateaddress(out['scriptPubKey']['addresses'][0])['hdkeypath']
 
-        assert(keypath[0:7] == "m/0'/1'")
+        assert_equal(keypath[0:7], "m/0'/1'")
 
 if __name__ == '__main__':
     WalletHDTest().main ()