Add explicit test for kucoin

tests/exchange/test_kucoin.py

@@ -125,3 +125,45 @@ def test_stoploss_adjust_kucoin(mocker, default_conf):
     # Test with invalid order case
     order['stopPrice'] = None
     assert exchange.stoploss_adjust(1501, order, 'sell')
+
+
+@pytest.mark.parametrize("side", ["buy", "sell"])
+@pytest.mark.parametrize("ordertype,rate", [
+    ("market", None),
+    ("market", 200),
+    ("limit", 200),
+    ("stop_loss_limit", 200)
+])
+def test_kucoin_create_order(default_conf, mocker, side, ordertype, rate):
+    api_mock = MagicMock()
+    order_id = 'test_prod_{}_{}'.format(side, randint(0, 10 ** 6))
+    api_mock.create_order = MagicMock(return_value={
+        'id': order_id,
+        'info': {
+            'foo': 'bar'
+        },
+        'symbol': 'XRP/USDT',
+        'amount': 1
+    })
+    default_conf['dry_run'] = False
+    mocker.patch('freqtrade.exchange.Exchange.amount_to_precision', lambda s, x, y: y)
+    mocker.patch('freqtrade.exchange.Exchange.price_to_precision', lambda s, x, y: y)
+    exchange = get_patched_exchange(mocker, default_conf, api_mock, id='kucoin')
+    exchange._set_leverage = MagicMock()
+    exchange.set_margin_mode = MagicMock()
+
+    order = exchange.create_order(
+        pair='XRP/USDT',
+        ordertype=ordertype,
+        side=side,
+        amount=1,
+        rate=rate,
+        leverage=1.0
+    )
+
+    assert 'id' in order
+    assert 'info' in order
+    assert order['id'] == order_id
+    assert order['amount'] == 1
+    # Status must be faked to open for kucoin.
+    assert order['status'] == 'open'