Wrote failing tests for exchange.set_leverage and exchange.set_margin_mode

freqtrade/exchange/exchange.py

@@ -1573,7 +1573,7 @@ class Exchange:
             raise DDosProtection(e) from e
         except (ccxt.NetworkError, ccxt.ExchangeError) as e:
             raise TemporaryError(
-                f'Could not set leverage due to {e.__class__.__name__}. Message: {e}') from e
+                f'Could not set margin mode due to {e.__class__.__name__}. Message: {e}') from e
         except ccxt.BaseError as e:
             raise OperationalException(e) from e
 

tests/exchange/test_exchange.py

@@ -10,6 +10,7 @@ import ccxt
 import pytest
 from pandas import DataFrame
 
+from freqtrade.enums import Collateral
 from freqtrade.exceptions import (DDosProtection, DependencyException, InvalidOrderException,
                                   OperationalException, PricingError, TemporaryError)
 from freqtrade.exchange import Binance, Bittrex, Exchange, Kraken
@@ -2972,6 +2973,71 @@ def test_get_max_leverage(
 
 
 def test_fill_leverage_brackets():
+    api_mock = MagicMock()
+    api_mock.set_leverage = MagicMock(return_value=[
+        {
+            'amount': 0.14542341,
+            'code': 'USDT',
+            'datetime': '2021-09-01T08:00:01.000Z',
+            'id': '485478',
+            'info': {'asset': 'USDT',
+                     'income': '0.14542341',
+                     'incomeType': 'FUNDING_FEE',
+                     'info': 'FUNDING_FEE',
+                     'symbol': 'XRPUSDT',
+                     'time': '1630512001000',
+                     'tradeId': '',
+                     'tranId': '4854789484855218760'},
+            'symbol': 'XRP/USDT',
+            'timestamp': 1630512001000
+        },
+        {
+            'amount': -0.14642341,
+            'code': 'USDT',
+            'datetime': '2021-09-01T16:00:01.000Z',
+            'id': '485479',
+            'info': {'asset': 'USDT',
+                     'income': '-0.14642341',
+                     'incomeType': 'FUNDING_FEE',
+                     'info': 'FUNDING_FEE',
+                     'symbol': 'XRPUSDT',
+                     'time': '1630512001000',
+                     'tradeId': '',
+                     'tranId': '4854789484855218760'},
+            'symbol': 'XRP/USDT',
+            'timestamp': 1630512001000
+        }
+    ])
+    type(api_mock).has = PropertyMock(return_value={'fetchFundingHistory': True})
+
+    # mocker.patch('freqtrade.exchange.Exchange.get_funding_fees', lambda pair, since: y)
+    exchange = get_patched_exchange(mocker, default_conf, api_mock, id=exchange_name)
+    date_time = datetime.strptime("2021-09-01T00:00:01.000Z", '%Y-%m-%dT%H:%M:%S.%fZ')
+    unix_time = int(date_time.strftime('%s'))
+    expected_fees = -0.001  # 0.14542341 + -0.14642341
+    fees_from_datetime = exchange.get_funding_fees(
+        pair='XRP/USDT',
+        since=date_time
+    )
+    fees_from_unix_time = exchange.get_funding_fees(
+        pair='XRP/USDT',
+        since=unix_time
+    )
+
+    assert(isclose(expected_fees, fees_from_datetime))
+    assert(isclose(expected_fees, fees_from_unix_time))
+
+    ccxt_exceptionhandlers(
+        mocker,
+        default_conf,
+        api_mock,
+        exchange_name,
+        "get_funding_fees",
+        "fetch_funding_history",
+        pair="XRP/USDT",
+        since=unix_time
+    )
+
     # TODO-lev
     return
 
@@ -2981,6 +3047,47 @@ def test_get_interest_rate():
     return
 
 
-def test_set_leverage():
+@pytest.mark.parametrize("collateral", [
-    # TODO-lev
+    (Collateral.CROSS),
-    return
+    (Collateral.ISOLATED)
+])
+@pytest.mark.parametrize("exchange_name", [("ftx"), ("binance")])
+def test_set_leverage(mocker, default_conf, exchange_name, collateral):
+
+    api_mock = MagicMock()
+    api_mock.set_leverage = MagicMock()
+    type(api_mock).has = PropertyMock(return_value={'setLeverage': True})
+
+    ccxt_exceptionhandlers(
+        mocker,
+        default_conf,
+        api_mock,
+        exchange_name,
+        "set_leverage",
+        "set_leverage",
+        symbol="XRP/USDT",
+        collateral=collateral
+    )
+
+
+@pytest.mark.parametrize("collateral", [
+    (Collateral.CROSS),
+    (Collateral.ISOLATED)
+])
+@pytest.mark.parametrize("exchange_name", [("ftx"), ("binance")])
+def test_set_margin_mode(mocker, default_conf, exchange_name, collateral):
+
+    api_mock = MagicMock()
+    api_mock.set_leverage = MagicMock()
+    type(api_mock).has = PropertyMock(return_value={'setMarginMode': True})
+
+    ccxt_exceptionhandlers(
+        mocker,
+        default_conf,
+        api_mock,
+        exchange_name,
+        "set_margin_mode",
+        "set_margin_mode",
+        symbol="XRP/USDT",
+        collateral=collateral
+    )