Improve forceenter validation messages

freqtrade/rpc/rpc.py

@@ -740,17 +740,7 @@ class RPC:
             self._freqtrade.wallets.update()
             return {'result': f'Created sell order for trade {trade_id}.'}
 
-    def _rpc_force_entry(self, pair: str, price: Optional[float], *,
-                         order_type: Optional[str] = None,
-                         order_side: SignalDirection = SignalDirection.LONG,
-                         stake_amount: Optional[float] = None,
-                         enter_tag: Optional[str] = 'force_entry',
-                         leverage: Optional[float] = None) -> Optional[Trade]:
-        """
-        Handler for forcebuy <asset> <price>
-        Buys a pair trade at the given or current price
-        """
-
+    def _force_entry_validations(self, pair: str, order_side: SignalDirection):
         if not self._freqtrade.config.get('force_entry_enable', False):
             raise RPCException('Force_entry not enabled.')
 
@@ -760,11 +750,26 @@ class RPC:
         if order_side == SignalDirection.SHORT and self._freqtrade.trading_mode == TradingMode.SPOT:
             raise RPCException("Can't go short on Spot markets.")
 
+        if pair not in self._freqtrade.exchange.get_markets(tradable_only=True):
+            raise RPCException('Symbol does not exist or market is not active.')
         # Check if pair quote currency equals to the stake currency.
         stake_currency = self._freqtrade.config.get('stake_currency')
         if not self._freqtrade.exchange.get_pair_quote_currency(pair) == stake_currency:
             raise RPCException(
                 f'Wrong pair selected. Only pairs with stake-currency {stake_currency} allowed.')
+
+    def _rpc_force_entry(self, pair: str, price: Optional[float], *,
+                         order_type: Optional[str] = None,
+                         order_side: SignalDirection = SignalDirection.LONG,
+                         stake_amount: Optional[float] = None,
+                         enter_tag: Optional[str] = 'force_entry',
+                         leverage: Optional[float] = None) -> Optional[Trade]:
+        """
+        Handler for forcebuy <asset> <price>
+        Buys a pair trade at the given or current price
+        """
+        self._force_entry_validations(pair, order_side)
+
         # check if valid pair
 
         # check if pair already has an open pair

tests/rpc/test_rpc.py

@@ -1056,6 +1056,10 @@ def test_rpc_force_entry(mocker, default_conf, ticker, fee, limit_buy_order_open
     assert trade.pair == pair
     assert trade.open_rate == 0.0001
 
+    with pytest.raises(RPCException,
+                       match=r'Symbol does not exist or market is not active.'):
+        rpc._rpc_force_entry('LTC/NOTHING', 0.0001)
+
     # Test buy pair not with stakes
     with pytest.raises(RPCException,
                        match=r'Wrong pair selected. Only pairs with stake-currency.*'):