sign TX dummy test passing

lib/server.js

@@ -485,7 +485,10 @@ CopayServer.prototype.signTx = function(opts, cb) {
 
   Utils.checkRequired(opts, ['walletId', 'copayerId', 'txProposalId', 'signatures']);
 
-  self.fetchTx(opts.walletId, opts.txProposalId, function(err, txp) {
+  self.getTx({
+    walletId: opts.walletId,
+    id: opts.txProposalId
+  }, function(err, txp) {
     if (err) return cb(err);
     if (!txp) return cb(new ClientError('Transaction proposal not found'));
     var action = _.find(txp.actions, {
@@ -530,7 +533,10 @@ CopayServer.prototype.rejectTx = function(opts, cb) {
 
   Utils.checkRequired(opts, ['walletId', 'copayerId', 'txProposalId']);
 
-  self.fetchTx(opts.walletId, opts.txProposalId, function(err, txp) {
+  self.getTx({
+    walletId: opts.walletId,
+    id: opts.txProposalId
+  }, function(err, txp) {
     if (err) return cb(err);
     if (!txp) return cb(new ClientError('Transaction proposal not found'));
     var action = _.find(txp.actions, {