merged with feat/short

tests/exchange/test_exchange.py

@@ -135,8 +135,6 @@ def test_init_ccxt_kwargs(default_conf, mocker, caplog):
     assert ex._ccxt_config == {}
     Exchange._headers = {}
 
-    # TODO-lev: Test with options in ccxt_config
-
 
 def test_destroy(default_conf, mocker, caplog):
     caplog.set_level(logging.DEBUG)

tests/exchange/test_ftx.py

@@ -1,10 +1,9 @@
 from random import randint
-from unittest.mock import MagicMock, PropertyMock
+from unittest.mock import MagicMock
 
 import ccxt
 import pytest
 
-from freqtrade.enums import TradingMode
 from freqtrade.exceptions import DependencyException, InvalidOrderException
 from freqtrade.exchange.common import API_FETCH_ORDER_RETRY_COUNT
 from tests.conftest import get_patched_exchange