Introduce .analyze() function for Strategy

Fixing a few tests along the way

tests/conftest.py

@@ -163,7 +163,7 @@ def patch_get_signal(freqtrade: FreqtradeBot, value=(True, False)) -> None:
     :param value: which value IStrategy.get_signal() must return
     :return: None
     """
-    freqtrade.strategy.get_signal = lambda e, s, t: value
+    freqtrade.strategy.get_signal = lambda e, s: value
     freqtrade.exchange.refresh_latest_ohlcv = lambda p: None
 
 

tests/test_freqtradebot.py

@@ -912,6 +912,7 @@ def test_process_informative_pairs_added(default_conf, ticker, mocker) -> None:
         refresh_latest_ohlcv=refresh_mock,
     )
     inf_pairs = MagicMock(return_value=[("BTC/ETH", '1m'), ("ETH/USDT", "1h")])
+    mocker.patch('freqtrade.strategy.interface.IStrategy.get_signal', return_value=(False, False))
     mocker.patch('time.sleep', return_value=None)
 
     freqtrade = FreqtradeBot(default_conf)