Replace 'BTC_XXX' with 'XXX/BTC' for pairs and 'XXX_BTC' for files

freqtrade/tests/rpc/test_rpc.py

@@ -59,7 +59,7 @@ def test_rpc_trade_status(default_conf, ticker, mocker) -> None:
     result_message = [
         '*Trade ID:* `1`\n'
         '*Current Pair:* '
-        '[ETH/BTC](https://bittrex.com/Market/Index?MarketName=BTC-ETH)\n'
+        '[BTC_ETH](https://www.bittrex.com/Market/Index?MarketName=BTC-ETH)\n'
         '*Open Since:* `just now`\n'
         '*Amount:* `90.99181074`\n'
         '*Open Rate:* `0.00001099`\n'

freqtrade/tests/rpc/test_rpc_telegram.py

@@ -585,7 +585,7 @@ def test_telegram_balance_handle(default_conf, update, mocker) -> None:
         """
         Mock Bittrex.get_ticker() response
         """
-        if symbol == 'USDT_BTC':
+        if symbol == 'BTC/USDT':
             return {
                 'bid': 10000.00,
                 'ask': 10000.00,