get trade_simnet_test working again

Clean up the simnet tests and get them working again by tricking
(*Core).locallyLocked to block swaps as needed.

Give the secondary (non-alpha) simnet harnesses more money.

client/asset/btc/btc.go

@@ -576,7 +576,10 @@ func (btc *ExchangeWallet) SyncStatus() (bool, float32, error) {
 	if chainInfo.InitialBlockDownload || toGo > 1 {
 		ogTip := atomic.LoadInt64(&btc.tipAtConnect)
 		totalToSync := chainInfo.Headers - ogTip
-		progress := 1 - (float32(toGo) / float32(totalToSync))
+		var progress float32 = 1
+		if totalToSync > 0 {
+			progress = 1 - (float32(toGo) / float32(totalToSync))
+		}
 		return false, progress, nil
 	}
 	return true, 1, nil

client/asset/dcr/dcr.go

@@ -2055,7 +2055,7 @@ func (dcr *ExchangeWallet) signTx(baseTx *wire.MsgTx) (*wire.MsgTx, error) {
 
 	for i := range res.Errors {
 		sigErr := &res.Errors[i]
-		dcr.log.Errorf("Signing %v:%d, seq = %d, sigScript = %v, failed: %v",
+		dcr.log.Errorf("Signing %v:%d, seq = %d, sigScript = %v, failed: %v (is wallet locked?)",
 			sigErr.TxID, sigErr.Vout, sigErr.Sequence, sigErr.ScriptSig, sigErr.Error)
 		// Will be incomplete below, so log each SignRawTransactionError and move on.
 	}
@@ -2068,7 +2068,7 @@ func (dcr *ExchangeWallet) signTx(baseTx *wire.MsgTx) (*wire.MsgTx, error) {
 	if !res.Complete {
 		dcr.log.Errorf("Incomplete raw transaction signatures (input tx: %x / incomplete signed tx: %x): ",
 			dcr.wireBytes(baseTx), dcr.wireBytes(signedTx))
-		return nil, fmt.Errorf("incomplete raw tx signatures")
+		return nil, fmt.Errorf("incomplete raw tx signatures (is wallet locked?)")
 	}
 
 	return signedTx, nil
@@ -2277,7 +2277,7 @@ func (dcr *ExchangeWallet) getKeys(addr dcrutil.Address) (*secp256k1.PrivateKey,
 	addrV2, _ := dcrutil.DecodeAddress(addr.String(), chainParams) // just be sure it's dcrutil/v2
 	wif, err := dcr.node.DumpPrivKey(addrV2, chainParams.PrivateKeyID)
 	if err != nil {
-		return nil, nil, err
+		return nil, nil, fmt.Errorf("%w (is wallet locked?)", err)
 	}
 
 	priv := secp256k1.PrivKeyFromBytes(wif.PrivKey.Serialize())

client/comms/wsconn.go

@@ -513,8 +513,8 @@ func (conn *wsConn) RequestWithTimeout(msg *msgjson.Message, f func(*msgjson.Mes
 		// Neither expire nor the handler should run. Stop the expire timer
 		// created by logReq and delete the response handler it added. The
 		// caller receives a non-nil error to deal with it.
-		conn.log.Debugf("(*wsConn).Request(route '%s') Send error, unregistering msg ID %d handler",
-			msg.Route, msg.ID)
+		conn.log.Errorf("(*wsConn).Request(route '%s') Send error (%v), unregistering msg ID %d handler",
+			msg.Route, err, msg.ID)
 		conn.respHandler(msg.ID) // drop the responseHandler logged by logReq that is no longer necessary
 	}
 	return err