Merge branch 'freqtrade:develop' into develop

freqtrade/optimize/backtesting.py

@@ -85,18 +85,7 @@ class Backtesting:
                                        "configuration or as cli argument `--timeframe 5m`")
         self.timeframe = str(self.config.get('timeframe'))
         self.timeframe_min = timeframe_to_minutes(self.timeframe)
-        # Load detail timeframe if specified
-        self.timeframe_detail = str(self.config.get('timeframe_detail', ''))
-        if self.timeframe_detail:
-            self.timeframe_detail_min = timeframe_to_minutes(self.timeframe_detail)
-            if self.timeframe_min <= self.timeframe_detail_min:
-                raise OperationalException(
-                    "Detail timeframe must be smaller than strategy timeframe.")
-
-        else:
-            self.timeframe_detail_min = 0
-        self.detail_data: Dict[str, DataFrame] = {}
-
+        self.init_backtest_detail()
         self.pairlists = PairListManager(self.exchange, self.config)
         if 'VolumePairList' in self.pairlists.name_list:
             raise OperationalException("VolumePairList not allowed for backtesting.")
@@ -119,14 +108,6 @@ class Backtesting:
         else:
             self.fee = self.exchange.get_fee(symbol=self.pairlists.whitelist[0])
 
-        Trade.use_db = False
-        Trade.reset_trades()
-        PairLocks.timeframe = self.config['timeframe']
-        PairLocks.use_db = False
-        PairLocks.reset_locks()
-
-        self.wallets = Wallets(self.config, self.exchange, log=False)
-
         self.timerange = TimeRange.parse_timerange(
             None if self.config.get('timerange') is None else str(self.config.get('timerange')))
 
@@ -135,9 +116,7 @@ class Backtesting:
         # Add maximum startup candle count to configuration for informative pairs support
         self.config['startup_candle_count'] = self.required_startup
         self.exchange.validate_required_startup_candles(self.required_startup, self.timeframe)
-
-        self.progress = BTProgress()
-        self.abort = False
+        self.init_backtest()
 
     def __del__(self):
         self.cleanup()
@@ -147,6 +126,28 @@ class Backtesting:
         PairLocks.use_db = True
         Trade.use_db = True
 
+    def init_backtest_detail(self):
+        # Load detail timeframe if specified
+        self.timeframe_detail = str(self.config.get('timeframe_detail', ''))
+        if self.timeframe_detail:
+            self.timeframe_detail_min = timeframe_to_minutes(self.timeframe_detail)
+            if self.timeframe_min <= self.timeframe_detail_min:
+                raise OperationalException(
+                    "Detail timeframe must be smaller than strategy timeframe.")
+
+        else:
+            self.timeframe_detail_min = 0
+        self.detail_data: Dict[str, DataFrame] = {}
+
+    def init_backtest(self):
+
+        self.prepare_backtest(False)
+
+        self.wallets = Wallets(self.config, self.exchange, log=False)
+
+        self.progress = BTProgress()
+        self.abort = False
+
     def _set_strategy(self, strategy: IStrategy):
         """
         Load strategy into backtesting
@@ -226,7 +227,8 @@ class Backtesting:
         Trade.reset_trades()
         self.rejected_trades = 0
         self.dataprovider.clear_cache()
-        self._load_protections(self.strategy)
+        if enable_protections:
+            self._load_protections(self.strategy)
 
     def check_abort(self):
         """