Add tests for kraken balance implementation

tests/exchange/test_exchange.py

@@ -867,7 +867,7 @@ def test_get_balance_dry_run(default_conf, mocker):
 @pytest.mark.parametrize("exchange_name", EXCHANGES)
 def test_get_balance_prod(default_conf, mocker, exchange_name):
     api_mock = MagicMock()
-    api_mock.fetch_balance = MagicMock(return_value={'BTC': {'free': 123.4}})
+    api_mock.fetch_balance = MagicMock(return_value={'BTC': {'free': 123.4, 'total': 123.4}})
     default_conf['dry_run'] = False
 
     exchange = get_patched_exchange(mocker, default_conf, api_mock, id=exchange_name)
@@ -883,6 +883,7 @@ def test_get_balance_prod(default_conf, mocker, exchange_name):
     with pytest.raises(TemporaryError, match=r'.*balance due to malformed exchange response:.*'):
         exchange = get_patched_exchange(mocker, default_conf, api_mock, id=exchange_name)
         mocker.patch('freqtrade.exchange.Exchange.get_balances', MagicMock(return_value={}))
+        mocker.patch('freqtrade.exchange.Kraken.get_balances', MagicMock(return_value={}))
         exchange.get_balance(currency='BTC')
 
 

tests/exchange/test_kraken.py

@@ -4,6 +4,7 @@ from random import randint
 from unittest.mock import MagicMock
 
 from tests.conftest import get_patched_exchange
+from tests.exchange.test_exchange import ccxt_exceptionhandlers
 
 
 def test_buy_kraken_trading_agreement(default_conf, mocker):
@@ -67,3 +68,84 @@ def test_sell_kraken_trading_agreement(default_conf, mocker):
     assert api_mock.create_order.call_args[0][3] == 1
     assert api_mock.create_order.call_args[0][4] is None
     assert api_mock.create_order.call_args[0][5] == {'trading_agreement': 'agree'}
+
+
+def test_get_balances_prod(default_conf, mocker):
+    balance_item = {
+        'free': None,
+        'total': 10.0,
+        'used': 0.0
+    }
+
+    api_mock = MagicMock()
+    api_mock.fetch_balance = MagicMock(return_value={
+        '1ST': balance_item.copy(),
+        '2ST': balance_item.copy(),
+        '3ST': balance_item.copy(),
+        '4ST': balance_item.copy(),
+    })
+    kraken_open_orders = [{'symbol': '1ST/EUR',
+                           'type': 'limit',
+                           'side': 'sell',
+                           'price': 20,
+                           'cost': 0.0,
+                           'amount': 1.0,
+                           'filled': 0.0,
+                           'average': 0.0,
+                           'remaining': 1.0,
+                           },
+                          {'status': 'open',
+                           'symbol': '2ST/EUR',
+                           'type': 'limit',
+                           'side': 'sell',
+                           'price': 20.0,
+                           'cost': 0.0,
+                           'amount': 2.0,
+                           'filled': 0.0,
+                           'average': 0.0,
+                           'remaining': 2.0,
+                           },
+                          {'status': 'open',
+                           'symbol': '2ST/USD',
+                           'type': 'limit',
+                           'side': 'sell',
+                           'price': 20.0,
+                           'cost': 0.0,
+                           'amount': 2.0,
+                           'filled': 0.0,
+                           'average': 0.0,
+                           'remaining': 2.0,
+                           },
+                          {'status': 'open',
+                           'symbol': 'BTC/3ST',
+                           'type': 'limit',
+                           'side': 'buy',
+                           'price': 20,
+                           'cost': 0.0,
+                           'amount': 3.0,
+                           'filled': 0.0,
+                           'average': 0.0,
+                           'remaining': 3.0,
+                           }]
+    api_mock.fetch_open_orders = MagicMock(return_value=kraken_open_orders)
+    default_conf['dry_run'] = False
+    exchange = get_patched_exchange(mocker, default_conf, api_mock, id="kraken")
+    balances = exchange.get_balances()
+    assert len(balances) == 4
+    assert balances['1ST']['free'] == 9.0
+    assert balances['1ST']['total'] == 10.0
+    assert balances['1ST']['used'] == 1.0
+
+    assert balances['2ST']['free'] == 6.0
+    assert balances['2ST']['total'] == 10.0
+    assert balances['2ST']['used'] == 4.0
+
+    assert balances['3ST']['free'] == 7.0
+    assert balances['3ST']['total'] == 10.0
+    assert balances['3ST']['used'] == 3.0
+
+    assert balances['4ST']['free'] == 10.0
+    assert balances['4ST']['total'] == 10.0
+    assert balances['4ST']['used'] == 0.0
+    ccxt_exceptionhandlers(mocker, default_conf, api_mock, "kraken",
+                           "get_balances", "fetch_balance")