Only fetch accounts when authenticated.

freqtrade/exchange/okx.py

@@ -45,7 +45,7 @@ class Okx(Exchange):
         Must be overridden in child methods if required.
         """
         try:
-            if self.trading_mode == TradingMode.FUTURES:
+            if self.trading_mode == TradingMode.FUTURES and not self._config['dry_run']:
                 accounts = self._api.fetch_accounts()
                 if len(accounts) > 0:
                     self.net_only = accounts[0].get('info', {}).get('posMode') == 'net_mode'

tests/exchange/test_ccxt_compat.py

@@ -135,6 +135,7 @@ def exchange_futures(request, exchange_conf, class_mocker):
         class_mocker.patch(
             'freqtrade.exchange.binance.Binance.fill_leverage_tiers')
         class_mocker.patch('freqtrade.exchange.exchange.Exchange.fetch_trading_fees')
+        class_mocker.patch('freqtrade.exchange.okx.Okx.additional_exchange_init')
         exchange = ExchangeResolver.load_exchange(request.param, exchange_conf, validate=True)
 
         yield exchange, request.param

tests/exchange/test_okx.py

@@ -205,6 +205,7 @@ def test_additional_exchange_init_okx(default_conf, mocker):
                   'mgnIsoMode': 'automatic',
                   'posMode': 'long_short_mode',
                   'uid': '2555'}}])
+    default_conf['dry_run'] = False
     exchange = get_patched_exchange(mocker, default_conf, id="okx", api_mock=api_mock)
     assert api_mock.fetch_accounts.call_count == 0
     exchange.trading_mode = TradingMode.FUTURES