refactor symbol and executor

tests/fixtures.py

@@ -0,0 +1,31 @@
+import json
+import os
+from aiomql import MetaTrader as mt5, Config
+import pytest
+
+
+@pytest.fixture(scope="session")
+def get_default_config():
+    data = {"win_percentage": 0.90, "record_dir": "Trade Records"}
+    obj = open('mt5.json', 'w')
+    json.dump(data, obj)
+    obj.close()
+    yield
+    os.remove('mt5.json')
+
+
+@pytest.fixture(scope="session")
+def get_config():
+    data = {"win_percentage": 0.8, "record_dir": "Trade_Records"}
+    obj = open('config.json', 'w')
+    json.dump(data, obj)
+    obj.close()
+    yield
+    os.remove('config.json')
+
+
+@pytest.fixture(autouse=True, scope="session")
+def init():
+    config = Config(filename="test_config.json")
+    mt5._initialize()
+    mt5._login(login=config.account_number, password=config.password, server=config.server)