add

ccxt/test/exchange/base/test_trading_fee.py

@@ -0,0 +1,26 @@
+import os
+import sys
+
+root = os.path.dirname(os.path.dirname(os.path.dirname(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))))
+sys.path.append(root)
+
+# ----------------------------------------------------------------------------
+
+# PLEASE DO NOT EDIT THIS FILE, IT IS GENERATED AND WILL BE OVERWRITTEN:
+# https://github.com/ccxt/ccxt/blob/master/CONTRIBUTING.md#how-to-contribute-code
+
+# ----------------------------------------------------------------------------
+# -*- coding: utf-8 -*-
+
+from ccxt.test.exchange.base import test_shared_methods  # noqa E402
+
+def test_trading_fee(exchange, skipped_properties, method, symbol, entry):
+    format = {
+        'info': {},
+        'symbol': 'ETH/BTC',
+        'maker': exchange.parse_number('0.002'),
+        'taker': exchange.parse_number('0.003'),
+    }
+    empty_allowed_for = ['tierBased', 'percentage', 'symbol']
+    test_shared_methods.assert_structure(exchange, skipped_properties, method, entry, format, empty_allowed_for)
+    test_shared_methods.assert_symbol(exchange, skipped_properties, method, entry, 'symbol', symbol)