From 52d92cba90cd3e9baa1c48da8e47c8ddb68a4fb3 Mon Sep 17 00:00:00 2001 From: Matthias Date: Sun, 4 Aug 2019 10:20:31 +0200 Subject: [PATCH] Split analyze_ticker and _analyze_ticker_int --- freqtrade/strategy/interface.py | 22 +++++++++++++++++----- freqtrade/tests/strategy/test_interface.py | 20 ++++++++++---------- 2 files changed, 27 insertions(+), 15 deletions(-) diff --git a/freqtrade/strategy/interface.py b/freqtrade/strategy/interface.py index 2a28bcd22..5bd183fa9 100644 --- a/freqtrade/strategy/interface.py +++ b/freqtrade/strategy/interface.py @@ -158,6 +158,21 @@ class IStrategy(ABC): """ Parses the given ticker history and returns a populated DataFrame add several TA indicators and buy signal to it + :param dataframe: Dataframe containing ticker data + :param metadata: Metadata dictionary with additional data (e.g. 'pair') + :return: DataFrame with ticker data and indicator data + """ + logger.debug("TA Analysis Launched") + dataframe = self.advise_indicators(dataframe, metadata) + dataframe = self.advise_buy(dataframe, metadata) + dataframe = self.advise_sell(dataframe, metadata) + return dataframe + + def _analyze_ticker_int(self, dataframe: DataFrame, metadata: dict) -> DataFrame: + """ + Parses the given ticker history and returns a populated DataFrame + add several TA indicators and buy signal to it + Used internally, may skip analysis if `process_only_new_candles` is set. :return: DataFrame with ticker data and indicator data """ @@ -168,10 +183,7 @@ class IStrategy(ABC): if (not self.process_only_new_candles or self._last_candle_seen_per_pair.get(pair, None) != dataframe.iloc[-1]['date']): # Defs that only make change on new candle data. - logger.debug("TA Analysis Launched") - dataframe = self.advise_indicators(dataframe, metadata) - dataframe = self.advise_buy(dataframe, metadata) - dataframe = self.advise_sell(dataframe, metadata) + dataframe = self.analyze_ticker(dataframe, metadata) self._last_candle_seen_per_pair[pair] = dataframe.iloc[-1]['date'] else: logger.debug("Skipping TA Analysis for already analyzed candle") @@ -198,7 +210,7 @@ class IStrategy(ABC): return False, False try: - dataframe = self.analyze_ticker(dataframe, {'pair': pair}) + dataframe = self._analyze_ticker_int(dataframe, {'pair': pair}) except ValueError as error: logger.warning( 'Unable to analyze ticker for pair %s: %s', diff --git a/freqtrade/tests/strategy/test_interface.py b/freqtrade/tests/strategy/test_interface.py index ee8c8ddd4..6bf3770c5 100644 --- a/freqtrade/tests/strategy/test_interface.py +++ b/freqtrade/tests/strategy/test_interface.py @@ -19,13 +19,13 @@ _STRATEGY = DefaultStrategy(config={}) def test_returns_latest_buy_signal(mocker, default_conf, ticker_history): mocker.patch.object( - _STRATEGY, 'analyze_ticker', + _STRATEGY, '_analyze_ticker_int', return_value=DataFrame([{'buy': 1, 'sell': 0, 'date': arrow.utcnow()}]) ) assert _STRATEGY.get_signal('ETH/BTC', '5m', ticker_history) == (True, False) mocker.patch.object( - _STRATEGY, 'analyze_ticker', + _STRATEGY, '_analyze_ticker_int', return_value=DataFrame([{'buy': 0, 'sell': 1, 'date': arrow.utcnow()}]) ) assert _STRATEGY.get_signal('ETH/BTC', '5m', ticker_history) == (False, True) @@ -33,14 +33,14 @@ def test_returns_latest_buy_signal(mocker, default_conf, ticker_history): def test_returns_latest_sell_signal(mocker, default_conf, ticker_history): mocker.patch.object( - _STRATEGY, 'analyze_ticker', + _STRATEGY, '_analyze_ticker_int', return_value=DataFrame([{'sell': 1, 'buy': 0, 'date': arrow.utcnow()}]) ) assert _STRATEGY.get_signal('ETH/BTC', '5m', ticker_history) == (False, True) mocker.patch.object( - _STRATEGY, 'analyze_ticker', + _STRATEGY, '_analyze_ticker_int', return_value=DataFrame([{'sell': 0, 'buy': 1, 'date': arrow.utcnow()}]) ) assert _STRATEGY.get_signal('ETH/BTC', '5m', ticker_history) == (True, False) @@ -60,7 +60,7 @@ def test_get_signal_empty(default_conf, mocker, caplog): def test_get_signal_exception_valueerror(default_conf, mocker, caplog, ticker_history): caplog.set_level(logging.INFO) mocker.patch.object( - _STRATEGY, 'analyze_ticker', + _STRATEGY, '_analyze_ticker_int', side_effect=ValueError('xyz') ) assert (False, False) == _STRATEGY.get_signal('foo', default_conf['ticker_interval'], @@ -71,7 +71,7 @@ def test_get_signal_exception_valueerror(default_conf, mocker, caplog, ticker_hi def test_get_signal_empty_dataframe(default_conf, mocker, caplog, ticker_history): caplog.set_level(logging.INFO) mocker.patch.object( - _STRATEGY, 'analyze_ticker', + _STRATEGY, '_analyze_ticker_int', return_value=DataFrame([]) ) assert (False, False) == _STRATEGY.get_signal('xyz', default_conf['ticker_interval'], @@ -86,7 +86,7 @@ def test_get_signal_old_dataframe(default_conf, mocker, caplog, ticker_history): oldtime = arrow.utcnow().shift(minutes=-16) ticks = DataFrame([{'buy': 1, 'date': oldtime}]) mocker.patch.object( - _STRATEGY, 'analyze_ticker', + _STRATEGY, '_analyze_ticker_int', return_value=DataFrame(ticks) ) assert (False, False) == _STRATEGY.get_signal('xyz', default_conf['ticker_interval'], @@ -252,7 +252,7 @@ def test_analyze_ticker_default(ticker_history, mocker, caplog) -> None: caplog.record_tuples) -def test_analyze_ticker_skip_analyze(ticker_history, mocker, caplog) -> None: +def test__analyze_ticker_int_skip_analyze(ticker_history, mocker, caplog) -> None: caplog.set_level(logging.DEBUG) ind_mock = MagicMock(side_effect=lambda x, meta: x) buy_mock = MagicMock(side_effect=lambda x, meta: x) @@ -267,7 +267,7 @@ def test_analyze_ticker_skip_analyze(ticker_history, mocker, caplog) -> None: strategy = DefaultStrategy({}) strategy.process_only_new_candles = True - ret = strategy.analyze_ticker(ticker_history, {'pair': 'ETH/BTC'}) + ret = strategy._analyze_ticker_int(ticker_history, {'pair': 'ETH/BTC'}) assert 'high' in ret.columns assert 'low' in ret.columns assert 'close' in ret.columns @@ -280,7 +280,7 @@ def test_analyze_ticker_skip_analyze(ticker_history, mocker, caplog) -> None: caplog.record_tuples) caplog.clear() - ret = strategy.analyze_ticker(ticker_history, {'pair': 'ETH/BTC'}) + ret = strategy._analyze_ticker_int(ticker_history, {'pair': 'ETH/BTC'}) # No analysis happens as process_only_new_candles is true assert ind_mock.call_count == 1 assert buy_mock.call_count == 1