gateio get_max_leverage and get_maintenance_ratio_and_amt temporary solution

tests/exchange/test_gateio.py

@@ -1,8 +1,11 @@
+from unittest.mock import MagicMock, PropertyMock
+
 import pytest
 
 from freqtrade.exceptions import OperationalException
 from freqtrade.exchange import Gateio
 from freqtrade.resolvers.exchange_resolver import ExchangeResolver
+from tests.conftest import get_patched_exchange
 
 
 def test_validate_order_types_gateio(default_conf, mocker):
@@ -26,3 +29,51 @@ def test_validate_order_types_gateio(default_conf, mocker):
     with pytest.raises(OperationalException,
                        match=r'Exchange .* does not support market orders.'):
         ExchangeResolver.load_exchange('gateio', default_conf, True)
+
+
+@pytest.mark.parametrize('pair,mm_ratio', [
+    ("ETH/USDT:USDT", 0.005),
+    ("ADA/USDT:USDT", 0.003),
+])
+def test_get_maintenance_ratio_and_amt_gateio(default_conf, mocker, pair, mm_ratio):
+    api_mock = MagicMock()
+    exchange = get_patched_exchange(mocker, default_conf, api_mock, id="gateio")
+    mocker.patch(
+        'freqtrade.exchange.Exchange.markets',
+        PropertyMock(
+            return_value={
+                'ETH/USDT:USDT': {
+                    'taker': 0.0000075,
+                    'maker': -0.0000025,
+                    'info': {
+                        'maintenance_rate': '0.005',
+                    },
+                    'id': 'ETH_USDT',
+                    'symbol': 'ETH/USDT:USDT',
+                },
+                'ADA/USDT:USDT': {
+                    'taker': 0.0000075,
+                    'maker': -0.0000025,
+                    'info': {
+                        'maintenance_rate': '0.003',
+                    },
+                    'id': 'ADA_USDT',
+                    'symbol': 'ADA/USDT:USDT',
+                },
+            }
+        )
+    )
+    assert exchange.get_maintenance_ratio_and_amt(pair) == (mm_ratio, None)
+
+
+@pytest.mark.parametrize('pair,nominal_value,max_lev', [
+    ("ETH/BTC", 0.0, 2.0),
+    ("TKN/BTC", 100.0, 5.0),
+    ("BLK/BTC", 173.31, 3.0),
+    ("LTC/BTC", 0.0, 1.0),
+    ("TKN/USDT", 210.30, 1.0),
+])
+def test_get_max_leverage_gateio(default_conf, mocker, pair, nominal_value, max_lev):
+    # Binance has a different method of getting the max leverage
+    exchange = get_patched_exchange(mocker, default_conf, id="kraken")
+    assert exchange.get_max_leverage(pair, nominal_value) == max_lev