remove _init function in backtesting (and according test)

freqtrade/optimize/backtesting.py

@@ -33,18 +33,6 @@ class Backtesting(object):
     """
     def __init__(self, config: Dict[str, Any]) -> None:
         self.config = config
-        self.analyze = None
-        self.ticker_interval = None
-        self.tickerdata_to_dataframe = None
-        self.populate_buy_trend = None
-        self.populate_sell_trend = None
-        self._init()
-
-    def _init(self) -> None:
-        """
-        Init objects required for backtesting
-        :return: None
-        """
         self.analyze = Analyze(self.config)
         self.ticker_interval = self.analyze.strategy.ticker_interval
         self.tickerdata_to_dataframe = self.analyze.tickerdata_to_dataframe

freqtrade/tests/optimize/test_backtesting.py

@@ -286,23 +286,6 @@ def test_start(mocker, fee, default_conf, caplog) -> None:
     assert start_mock.call_count == 1
 
 
-def test_backtesting__init__(mocker, default_conf) -> None:
-    """
-    Test Backtesting.__init__() method
-    """
-    init_mock = MagicMock()
-    mocker.patch('freqtrade.optimize.backtesting.Backtesting._init', init_mock)
-
-    backtesting = Backtesting(default_conf)
-    assert backtesting.config == default_conf
-    assert backtesting.analyze is None
-    assert backtesting.ticker_interval is None
-    assert backtesting.tickerdata_to_dataframe is None
-    assert backtesting.populate_buy_trend is None
-    assert backtesting.populate_sell_trend is None
-    assert init_mock.call_count == 1
-
-
 def test_backtesting_init(mocker, default_conf) -> None:
     """
     Test Backtesting._init() method