scripts: Print errors if offer/bid creation fails.

scripts/createoffers.py

@@ -326,6 +326,8 @@ def main():
                 if args.debug:
                     print('offer data {}'.format(offer_data))
                 new_offer = read_json_api('offers/new', offer_data)
+                if 'error' in new_offer:
+                    raise ValueError('Server failed to create offer: {}'.format(new_offer['error']))
                 print('New offer: {}'.format(new_offer['offer_id']))
                 if 'offers' not in script_state:
                     script_state['offers'] = {}
@@ -516,6 +518,8 @@ def main():
                         if args.debug:
                             print('Creating bid: {}'.format(bid_data))
                         new_bid = read_json_api('bids/new', bid_data)
+                        if 'error' in new_bid:
+                            raise ValueError('Server failed to create bid: {}'.format(new_bid['error']))
                         print('New bid: {} on offer {}'.format(new_bid['bid_id'], offer['offer_id']))
                         bid_id = new_bid['bid_id']
 

tests/basicswap/extended/test_scripts.py

@@ -553,6 +553,40 @@ class Test(unittest.TestCase):
         rv_stdout = result.stdout.decode().split('\n')
         '''
 
+    def test_error_messages(self):
+        waitForServer(self.delay_event, UI_PORT + 0)
+        waitForServer(self.delay_event, UI_PORT + 1)
+
+        # Reset test
+        clear_offers(self.delay_event, 0)
+        delete_file(self.node0_statefile)
+        delete_file(self.node1_statefile)
+        wait_for_offers(self.delay_event, 1, 0)
+
+        node0_test1_config = {
+            'offers': [
+                {
+                    'name': 'offer should fail',
+                    'coin_from': 'Particl',
+                    'coin_to': 'XMR',
+                    'amount': 20,
+                    'minrate': 0.05,
+                    'ratetweakpercent': 50000000,
+                    'amount_variable': True,
+                    'address': -1,
+                    'min_coin_from_amt': 20,
+                    'max_coin_to_amt': -1
+                }
+            ],
+        }
+        with open(self.node0_configfile, 'w') as fp:
+            json.dump(node0_test1_config, fp, indent=4)
+
+        logging.info('Test that an offer is created')
+        result = subprocess.run(self.node0_args, stdout=subprocess.PIPE)
+        rv_stdout = result.stdout.decode().split('\n')
+        assert (count_lines_with(rv_stdout, 'Error: Server failed to create offer: To amount above max') == 1)
+
     def test_bid_tracking(self):
 
         waitForServer(self.delay_event, UI_PORT + 0)