Merge pull request #2712 from freqtrade/strategylist

add list-strategies subcommand

docs/utils.md

@@ -108,6 +108,47 @@ With custom user directory
 freqtrade new-hyperopt --userdir ~/.freqtrade/ --hyperopt AwesomeHyperopt
 ```
 
+## List Strategies
+
+Use the `list-strategies` subcommand to see all strategies in one particular directory.
+
+```
+freqtrade list-strategies --help
+usage: freqtrade list-strategies [-h] [-v] [--logfile FILE] [-V] [-c PATH] [-d PATH] [--userdir PATH] [--strategy-path PATH] [-1]
+
+optional arguments:
+  -h, --help            show this help message and exit
+  --strategy-path PATH  Specify additional strategy lookup path.
+  -1, --one-column      Print output in one column.
+
+Common arguments:
+  -v, --verbose         Verbose mode (-vv for more, -vvv to get all messages).
+  --logfile FILE        Log to the file specified. Special values are: 'syslog', 'journald'. See the documentation for more details.
+  -V, --version         show program's version number and exit
+  -c PATH, --config PATH
+                        Specify configuration file (default: `config.json`). Multiple --config options may be used. Can be set to `-`
+                        to read config from stdin.
+  -d PATH, --datadir PATH
+                        Path to directory with historical backtesting data.
+  --userdir PATH, --user-data-dir PATH
+                        Path to userdata directory.
+```
+
+!!! Warning
+    Using this command will try to load all python files from a directory. This can be a security risk if untrusted files reside in this directory, since all module-level code is executed.
+
+Example: search default strategy directory within userdir
+
+``` bash
+freqtrade list-strategies --userdir ~/.freqtrade/
+```
+
+Example: search dedicated strategy path
+
+``` bash
+freqtrade list-strategies --strategy-path ~/.freqtrade/strategies/
+```
+
 ## List Exchanges
 
 Use the `list-exchanges` subcommand to see the exchanges available for the bot.

freqtrade/configuration/arguments.py

@@ -30,6 +30,8 @@ ARGS_HYPEROPT = ARGS_COMMON_OPTIMIZE + ["hyperopt", "hyperopt_path",
 
 ARGS_EDGE = ARGS_COMMON_OPTIMIZE + ["stoploss_range"]
 
+ARGS_LIST_STRATEGIES = ["strategy_path", "print_one_column"]
+
 ARGS_LIST_EXCHANGES = ["print_one_column", "list_exchanges_all"]
 
 ARGS_LIST_TIMEFRAMES = ["exchange", "print_one_column"]
@@ -62,7 +64,8 @@ ARGS_HYPEROPT_SHOW = ["hyperopt_list_best", "hyperopt_list_profitable", "hyperop
                       "print_json", "hyperopt_show_no_header"]
 
 NO_CONF_REQURIED = ["download-data", "list-timeframes", "list-markets", "list-pairs",
-                    "hyperopt-list", "hyperopt-show", "plot-dataframe", "plot-profit"]
+                    "list-strategies", "hyperopt-list", "hyperopt-show", "plot-dataframe",
+                    "plot-profit"]
 
 NO_CONF_ALLOWED = ["create-userdir", "list-exchanges", "new-hyperopt", "new-strategy"]
 
@@ -131,8 +134,9 @@ class Arguments:
         from freqtrade.utils import (start_create_userdir, start_download_data,
                                      start_hyperopt_list, start_hyperopt_show,
                                      start_list_exchanges, start_list_markets,
-                                     start_new_hyperopt, start_new_strategy,
+                                     start_list_strategies, start_new_hyperopt,
-                                     start_list_timeframes, start_test_pairlist, start_trading)
+                                     start_new_strategy, start_list_timeframes,
+                                     start_test_pairlist, start_trading)
         from freqtrade.plot.plot_utils import start_plot_dataframe, start_plot_profit
 
         subparsers = self.parser.add_subparsers(dest='command',
@@ -185,6 +189,15 @@ class Arguments:
         build_hyperopt_cmd.set_defaults(func=start_new_hyperopt)
         self._build_args(optionlist=ARGS_BUILD_HYPEROPT, parser=build_hyperopt_cmd)
 
+        # Add list-strategies subcommand
+        list_strategies_cmd = subparsers.add_parser(
+            'list-strategies',
+            help='Print available strategies.',
+            parents=[_common_parser],
+        )
+        list_strategies_cmd.set_defaults(func=start_list_strategies)
+        self._build_args(optionlist=ARGS_LIST_STRATEGIES, parser=list_strategies_cmd)
+
         # Add list-exchanges subcommand
         list_exchanges_cmd = subparsers.add_parser(
             'list-exchanges',

freqtrade/resolvers/exchange_resolver.py

@@ -14,6 +14,7 @@ class ExchangeResolver(IResolver):
     """
     This class contains all the logic to load a custom exchange class
     """
+    object_type = Exchange
 
     @staticmethod
     def load_exchange(exchange_name: str, config: dict, validate: bool = True) -> Exchange:

freqtrade/resolvers/hyperopt_resolver.py

@@ -5,7 +5,7 @@ This module load custom hyperopt
 """
 import logging
 from pathlib import Path
-from typing import Optional, Dict
+from typing import Dict
 
 from freqtrade import OperationalException
 from freqtrade.constants import DEFAULT_HYPEROPT_LOSS, USERPATH_HYPEROPTS
@@ -20,6 +20,10 @@ class HyperOptResolver(IResolver):
     """
     This class contains all the logic to load custom hyperopt class
     """
+    object_type = IHyperOpt
+    object_type_str = "Hyperopt"
+    user_subdir = USERPATH_HYPEROPTS
+    initial_search_path = Path(__file__).parent.parent.joinpath('optimize').resolve()
 
     @staticmethod
     def load_hyperopt(config: Dict) -> IHyperOpt:
@@ -33,7 +37,8 @@ class HyperOptResolver(IResolver):
 
         hyperopt_name = config['hyperopt']
 
-        hyperopt = HyperOptResolver._load_hyperopt(hyperopt_name, config,
+        hyperopt = HyperOptResolver.load_object(hyperopt_name, config,
+                                                kwargs={'config': config},
                                                 extra_dir=config.get('hyperopt_path'))
 
         if not hasattr(hyperopt, 'populate_indicators'):
@@ -47,36 +52,15 @@ class HyperOptResolver(IResolver):
                            "Using populate_sell_trend from the strategy.")
         return hyperopt
 
-    @staticmethod
-    def _load_hyperopt(
-            hyperopt_name: str, config: Dict, extra_dir: Optional[str] = None) -> IHyperOpt:
-        """
-        Search and loads the specified hyperopt.
-        :param hyperopt_name: name of the module to import
-        :param config: configuration dictionary
-        :param extra_dir: additional directory to search for the given hyperopt
-        :return: HyperOpt instance or None
-        """
-        current_path = Path(__file__).parent.parent.joinpath('optimize').resolve()
-
-        abs_paths = IResolver.build_search_paths(config, current_path=current_path,
-                                                 user_subdir=USERPATH_HYPEROPTS,
-                                                 extra_dir=extra_dir)
-
-        hyperopt = IResolver._load_object(paths=abs_paths, object_type=IHyperOpt,
-                                          object_name=hyperopt_name, kwargs={'config': config})
-        if hyperopt:
-            return hyperopt
-        raise OperationalException(
-            f"Impossible to load Hyperopt '{hyperopt_name}'. This class does not exist "
-            "or contains Python code errors."
-        )
-
 
 class HyperOptLossResolver(IResolver):
     """
     This class contains all the logic to load custom hyperopt loss class
     """
+    object_type = IHyperOptLoss
+    object_type_str = "HyperoptLoss"
+    user_subdir = USERPATH_HYPEROPTS
+    initial_search_path = Path(__file__).parent.parent.joinpath('optimize').resolve()
 
     @staticmethod
     def load_hyperoptloss(config: Dict) -> IHyperOptLoss:
@@ -89,8 +73,9 @@ class HyperOptLossResolver(IResolver):
         # default hyperopt loss
         hyperoptloss_name = config.get('hyperopt_loss') or DEFAULT_HYPEROPT_LOSS
 
-        hyperoptloss = HyperOptLossResolver._load_hyperoptloss(
+        hyperoptloss = HyperOptLossResolver.load_object(hyperoptloss_name,
-            hyperoptloss_name, config, extra_dir=config.get('hyperopt_path'))
+                                                        config, kwargs={},
+                                                        extra_dir=config.get('hyperopt_path'))
 
         # Assign ticker_interval to be used in hyperopt
         hyperoptloss.__class__.ticker_interval = str(config['ticker_interval'])
@@ -100,29 +85,3 @@ class HyperOptLossResolver(IResolver):
                 f"Found HyperoptLoss class {hyperoptloss_name} does not "
                 "implement `hyperopt_loss_function`.")
         return hyperoptloss
-
-    @staticmethod
-    def _load_hyperoptloss(hyper_loss_name: str, config: Dict,
-                           extra_dir: Optional[str] = None) -> IHyperOptLoss:
-        """
-        Search and loads the specified hyperopt loss class.
-        :param hyper_loss_name: name of the module to import
-        :param config: configuration dictionary
-        :param extra_dir: additional directory to search for the given hyperopt
-        :return: HyperOptLoss instance or None
-        """
-        current_path = Path(__file__).parent.parent.joinpath('optimize').resolve()
-
-        abs_paths = IResolver.build_search_paths(config, current_path=current_path,
-                                                 user_subdir=USERPATH_HYPEROPTS,
-                                                 extra_dir=extra_dir)
-
-        hyperoptloss = IResolver._load_object(paths=abs_paths, object_type=IHyperOptLoss,
-                                              object_name=hyper_loss_name)
-        if hyperoptloss:
-            return hyperoptloss
-
-        raise OperationalException(
-            f"Impossible to load HyperoptLoss '{hyper_loss_name}'. This class does not exist "
-            "or contains Python code errors."
-        )

freqtrade/resolvers/iresolver.py

@@ -7,7 +7,9 @@ import importlib.util
 import inspect
 import logging
 from pathlib import Path
-from typing import Any, List, Optional, Tuple, Union, Generator
+from typing import Any, Dict, Generator, List, Optional, Tuple, Type, Union
+
+from freqtrade import OperationalException
 
 logger = logging.getLogger(__name__)
 
@@ -16,12 +18,17 @@ class IResolver:
     """
     This class contains all the logic to load custom classes
     """
+    # Childclasses need to override this
+    object_type: Type[Any]
+    object_type_str: str
+    user_subdir: Optional[str] = None
+    initial_search_path: Path
 
-    @staticmethod
+    @classmethod
-    def build_search_paths(config, current_path: Path, user_subdir: Optional[str] = None,
+    def build_search_paths(cls, config, user_subdir: Optional[str] = None,
                            extra_dir: Optional[str] = None) -> List[Path]:
 
-        abs_paths: List[Path] = [current_path]
+        abs_paths: List[Path] = [cls.initial_search_path]
 
         if user_subdir:
             abs_paths.insert(0, config['user_data_dir'].joinpath(user_subdir))
@@ -32,12 +39,11 @@ class IResolver:
 
         return abs_paths
 
-    @staticmethod
+    @classmethod
-    def _get_valid_object(object_type, module_path: Path,
+    def _get_valid_object(cls, module_path: Path,
-                          object_name: str) -> Generator[Any, None, None]:
+                          object_name: Optional[str]) -> Generator[Any, None, None]:
         """
         Generator returning objects with matching object_type and object_name in the path given.
-        :param object_type: object_type (class)
         :param module_path: absolute path to the module
         :param object_name: Class name of the object
         :return: generator containing matching objects
@@ -45,7 +51,7 @@ class IResolver:
 
         # Generate spec based on absolute path
         # Pass object_name as first argument to have logging print a reasonable name.
-        spec = importlib.util.spec_from_file_location(object_name, str(module_path))
+        spec = importlib.util.spec_from_file_location(object_name or "", str(module_path))
         module = importlib.util.module_from_spec(spec)
         try:
             spec.loader.exec_module(module)  # type: ignore # importlib does not use typehints
@@ -55,19 +61,20 @@ class IResolver:
 
         valid_objects_gen = (
             obj for name, obj in inspect.getmembers(module, inspect.isclass)
-            if object_name == name and object_type in obj.__bases__
+            if (object_name is None or object_name == name) and cls.object_type in obj.__bases__
         )
         return valid_objects_gen
 
-    @staticmethod
+    @classmethod
-    def _search_object(directory: Path, object_type, object_name: str,
+    def _search_object(cls, directory: Path, object_name: str
-                       kwargs: dict = {}) -> Union[Tuple[Any, Path], Tuple[None, None]]:
+                       ) -> Union[Tuple[Any, Path], Tuple[None, None]]:
         """
         Search for the objectname in the given directory
         :param directory: relative or absolute directory path
-        :return: object instance
+        :param object_name: ClassName of the object to load
+        :return: object class
         """
-        logger.debug("Searching for %s %s in '%s'", object_type.__name__, object_name, directory)
+        logger.debug(f"Searching for {cls.object_type.__name__} {object_name} in '{directory}'")
         for entry in directory.iterdir():
             # Only consider python files
             if not str(entry).endswith('.py'):
@@ -75,14 +82,14 @@ class IResolver:
                 continue
             module_path = entry.resolve()
 
-            obj = next(IResolver._get_valid_object(object_type, module_path, object_name), None)
+            obj = next(cls._get_valid_object(module_path, object_name), None)
 
             if obj:
-                return (obj(**kwargs), module_path)
+                return (obj, module_path)
         return (None, None)
 
-    @staticmethod
+    @classmethod
-    def _load_object(paths: List[Path], object_type, object_name: str,
+    def _load_object(cls, paths: List[Path], object_name: str,
                      kwargs: dict = {}) -> Optional[Any]:
         """
         Try to load object from path list.
@@ -90,16 +97,63 @@ class IResolver:
 
         for _path in paths:
             try:
-                (module, module_path) = IResolver._search_object(directory=_path,
+                (module, module_path) = cls._search_object(directory=_path,
-                                                                 object_type=object_type,
+                                                           object_name=object_name)
-                                                                 object_name=object_name,
-                                                                 kwargs=kwargs)
                 if module:
                     logger.info(
-                        f"Using resolved {object_type.__name__.lower()[1:]} {object_name} "
+                        f"Using resolved {cls.object_type.__name__.lower()[1:]} {object_name} "
                         f"from '{module_path}'...")
-                    return module
+                    return module(**kwargs)
             except FileNotFoundError:
                 logger.warning('Path "%s" does not exist.', _path.resolve())
 
         return None
+
+    @classmethod
+    def load_object(cls, object_name: str, config: dict, kwargs: dict,
+                    extra_dir: Optional[str] = None) -> Any:
+        """
+        Search and loads the specified object as configured in hte child class.
+        :param objectname: name of the module to import
+        :param config: configuration dictionary
+        :param extra_dir: additional directory to search for the given pairlist
+        :raises: OperationalException if the class is invalid or does not exist.
+        :return: Object instance or None
+        """
+
+        abs_paths = cls.build_search_paths(config,
+                                           user_subdir=cls.user_subdir,
+                                           extra_dir=extra_dir)
+
+        pairlist = cls._load_object(paths=abs_paths, object_name=object_name,
+                                    kwargs=kwargs)
+        if pairlist:
+            return pairlist
+        raise OperationalException(
+            f"Impossible to load {cls.object_type_str} '{object_name}'. This class does not exist "
+            "or contains Python code errors."
+        )
+
+    @classmethod
+    def search_all_objects(cls, directory: Path) -> List[Dict[str, Any]]:
+        """
+        Searches a directory for valid objects
+        :param directory: Path to search
+        :return: List of dicts containing 'name', 'class' and 'location' entires
+        """
+        logger.debug(f"Searching for {cls.object_type.__name__} '{directory}'")
+        objects = []
+        for entry in directory.iterdir():
+            # Only consider python files
+            if not str(entry).endswith('.py'):
+                logger.debug('Ignoring %s', entry)
+                continue
+            module_path = entry.resolve()
+            logger.debug(f"Path {module_path}")
+            for obj in cls._get_valid_object(module_path, object_name=None):
+                objects.append(
+                    {'name': obj.__name__,
+                     'class': obj,
+                     'location': entry,
+                     })
+        return objects

freqtrade/resolvers/pairlist_resolver.py

@@ -6,7 +6,6 @@ This module load custom pairlists
 import logging
 from pathlib import Path
 
-from freqtrade import OperationalException
 from freqtrade.pairlist.IPairList import IPairList
 from freqtrade.resolvers import IResolver
 
@@ -17,6 +16,10 @@ class PairListResolver(IResolver):
     """
     This class contains all the logic to load custom PairList class
     """
+    object_type = IPairList
+    object_type_str = "Pairlist"
+    user_subdir = None
+    initial_search_path = Path(__file__).parent.parent.joinpath('pairlist').resolve()
 
     @staticmethod
     def load_pairlist(pairlist_name: str, exchange, pairlistmanager,
@@ -31,33 +34,10 @@ class PairListResolver(IResolver):
         :param pairlist_pos: Position of the pairlist in the list of pairlists
         :return: initialized Pairlist class
         """
-
+        return PairListResolver.load_object(pairlist_name, config,
-        return PairListResolver._load_pairlist(pairlist_name, config,
                                             kwargs={'exchange': exchange,
                                                     'pairlistmanager': pairlistmanager,
                                                     'config': config,
                                                     'pairlistconfig': pairlistconfig,
-                                                       'pairlist_pos': pairlist_pos})
+                                                    'pairlist_pos': pairlist_pos},
-
-    @staticmethod
-    def _load_pairlist(pairlist_name: str, config: dict, kwargs: dict) -> IPairList:
-        """
-        Search and loads the specified pairlist.
-        :param pairlist_name: name of the module to import
-        :param config: configuration dictionary
-        :param extra_dir: additional directory to search for the given pairlist
-        :return: PairList instance or None
-        """
-        current_path = Path(__file__).parent.parent.joinpath('pairlist').resolve()
-
-        abs_paths = IResolver.build_search_paths(config, current_path=current_path,
-                                                 user_subdir=None, extra_dir=None)
-
-        pairlist = IResolver._load_object(paths=abs_paths, object_type=IPairList,
-                                          object_name=pairlist_name, kwargs=kwargs)
-        if pairlist:
-            return pairlist
-        raise OperationalException(
-            f"Impossible to load Pairlist '{pairlist_name}'. This class does not exist "
-            "or contains Python code errors."
                                             )

freqtrade/resolvers/strategy_resolver.py

@@ -11,7 +11,9 @@ from inspect import getfullargspec
 from pathlib import Path
 from typing import Dict, Optional
 
-from freqtrade import constants, OperationalException
+from freqtrade import OperationalException
+from freqtrade.constants import (REQUIRED_ORDERTIF, REQUIRED_ORDERTYPES,
+                                 USERPATH_STRATEGY)
 from freqtrade.resolvers import IResolver
 from freqtrade.strategy.interface import IStrategy
 
@@ -22,6 +24,10 @@ class StrategyResolver(IResolver):
     """
     This class contains the logic to load custom strategy class
     """
+    object_type = IStrategy
+    object_type_str = "Strategy"
+    user_subdir = USERPATH_STRATEGY
+    initial_search_path = Path(__file__).parent.parent.joinpath('strategy').resolve()
 
     @staticmethod
     def load_strategy(config: Optional[Dict] = None) -> IStrategy:
@@ -114,11 +120,11 @@ class StrategyResolver(IResolver):
 
     @staticmethod
     def _strategy_sanity_validations(strategy):
-        if not all(k in strategy.order_types for k in constants.REQUIRED_ORDERTYPES):
+        if not all(k in strategy.order_types for k in REQUIRED_ORDERTYPES):
             raise ImportError(f"Impossible to load Strategy '{strategy.__class__.__name__}'. "
                               f"Order-types mapping is incomplete.")
 
-        if not all(k in strategy.order_time_in_force for k in constants.REQUIRED_ORDERTIF):
+        if not all(k in strategy.order_time_in_force for k in REQUIRED_ORDERTIF):
             raise ImportError(f"Impossible to load Strategy '{strategy.__class__.__name__}'. "
                               f"Order-time-in-force mapping is incomplete.")
 
@@ -132,10 +138,9 @@ class StrategyResolver(IResolver):
         :param extra_dir: additional directory to search for the given strategy
         :return: Strategy instance or None
         """
-        current_path = Path(__file__).parent.parent.joinpath('strategy').resolve()
 
-        abs_paths = IResolver.build_search_paths(config, current_path=current_path,
+        abs_paths = StrategyResolver.build_search_paths(config,
-                                                 user_subdir=constants.USERPATH_STRATEGY,
+                                                        user_subdir=USERPATH_STRATEGY,
                                                         extra_dir=extra_dir)
 
         if ":" in strategy_name:
@@ -154,8 +159,9 @@ class StrategyResolver(IResolver):
                 # register temp path with the bot
                 abs_paths.insert(0, temp.resolve())
 
-        strategy = IResolver._load_object(paths=abs_paths, object_type=IStrategy,
+        strategy = StrategyResolver._load_object(paths=abs_paths,
-                                          object_name=strategy_name, kwargs={'config': config})
+                                                 object_name=strategy_name,
+                                                 kwargs={'config': config})
         if strategy:
             strategy._populate_fun_len = len(getfullargspec(strategy.populate_indicators).args)
             strategy._buy_fun_len = len(getfullargspec(strategy.populate_buy_trend).args)

freqtrade/utils.py

@@ -23,7 +23,7 @@ from freqtrade.data.history import (convert_trades_to_ohlcv,
 from freqtrade.exchange import (available_exchanges, ccxt_exchanges,
                                 market_is_active, symbol_is_pair)
 from freqtrade.misc import plural, render_template
-from freqtrade.resolvers import ExchangeResolver
+from freqtrade.resolvers import ExchangeResolver, StrategyResolver
 from freqtrade.state import RunMode
 
 logger = logging.getLogger(__name__)
@@ -223,6 +223,24 @@ def start_download_data(args: Dict[str, Any]) -> None:
                         f"on exchange {exchange.name}.")
 
 
+def start_list_strategies(args: Dict[str, Any]) -> None:
+    """
+    Print Strategies available in a directory
+    """
+    config = setup_utils_configuration(args, RunMode.UTIL_NO_EXCHANGE)
+
+    directory = Path(config.get('strategy_path', config['user_data_dir'] / USERPATH_STRATEGY))
+    strategies = StrategyResolver.search_all_objects(directory)
+    # Sort alphabetically
+    strategies = sorted(strategies, key=lambda x: x['name'])
+    strats_to_print = [{'name': s['name'], 'location': s['location'].name} for s in strategies]
+
+    if args['print_one_column']:
+        print('\n'.join([s['name'] for s in strategies]))
+    else:
+        print(tabulate(strats_to_print, headers='keys', tablefmt='pipe'))
+
+
 def start_list_timeframes(args: Dict[str, Any]) -> None:
     """
     Print ticker intervals (timeframes) available on Exchange

tests/optimize/test_hyperopt.py

@@ -159,7 +159,7 @@ def test_hyperoptresolver(mocker, default_conf, caplog) -> None:
     delattr(hyperopt, 'populate_buy_trend')
     delattr(hyperopt, 'populate_sell_trend')
     mocker.patch(
-        'freqtrade.resolvers.hyperopt_resolver.HyperOptResolver._load_hyperopt',
+        'freqtrade.resolvers.hyperopt_resolver.HyperOptResolver.load_object',
         MagicMock(return_value=hyperopt(default_conf))
     )
     default_conf.update({'hyperopt': 'DefaultHyperOpt'})
@@ -195,7 +195,7 @@ def test_hyperoptlossresolver(mocker, default_conf, caplog) -> None:
 
     hl = DefaultHyperOptLoss
     mocker.patch(
-        'freqtrade.resolvers.hyperopt_resolver.HyperOptLossResolver._load_hyperoptloss',
+        'freqtrade.resolvers.hyperopt_resolver.HyperOptLossResolver.load_object',
         MagicMock(return_value=hl)
     )
     x = HyperOptLossResolver.load_hyperoptloss(default_conf)

tests/strategy/test_strategy.py

@@ -15,26 +15,29 @@ from tests.conftest import log_has, log_has_re
 
 
 def test_search_strategy():
-    default_config = {}
     default_location = Path(__file__).parent.parent.joinpath('strategy').resolve()
 
     s, _ = StrategyResolver._search_object(
         directory=default_location,
-        object_type=IStrategy,
-        kwargs={'config': default_config},
         object_name='DefaultStrategy'
     )
-    assert isinstance(s, IStrategy)
+    assert issubclass(s, IStrategy)
 
     s, _ = StrategyResolver._search_object(
         directory=default_location,
-        object_type=IStrategy,
-        kwargs={'config': default_config},
         object_name='NotFoundStrategy'
     )
     assert s is None
 
 
+def test_search_all_strategies():
+    directory = Path(__file__).parent
+    strategies = StrategyResolver.search_all_objects(directory)
+    assert isinstance(strategies, list)
+    assert len(strategies) == 3
+    assert isinstance(strategies[0], dict)
+
+
 def test_load_strategy(default_conf, result):
     default_conf.update({'strategy': 'SampleStrategy',
                          'strategy_path': str(Path(__file__).parents[2] / 'freqtrade/templates')

tests/test_utils.py

@@ -7,11 +7,12 @@ import pytest
 from freqtrade import OperationalException
 from freqtrade.state import RunMode
 from freqtrade.utils import (setup_utils_configuration, start_create_userdir,
-                             start_download_data, start_list_exchanges,
+                             start_download_data, start_hyperopt_list,
-                             start_list_markets, start_list_timeframes,
+                             start_hyperopt_show, start_list_exchanges,
-                             start_new_hyperopt, start_new_strategy,
+                             start_list_markets, start_list_strategies,
-                             start_test_pairlist, start_trading,
+                             start_list_timeframes, start_new_hyperopt,
-                             start_hyperopt_list, start_hyperopt_show)
+                             start_new_strategy, start_test_pairlist,
+                             start_trading)
 from tests.conftest import (get_args, log_has, log_has_re, patch_exchange,
                             patched_configuration_load_config_file)
 
@@ -630,6 +631,37 @@ def test_download_data_trades(mocker, caplog):
     assert convert_mock.call_count == 1
 
 
+def test_start_list_strategies(mocker, caplog, capsys):
+
+    args = [
+        "list-strategies",
+        "--strategy-path",
+        str(Path(__file__).parent / "strategy"),
+        "-1"
+    ]
+    pargs = get_args(args)
+    # pargs['config'] = None
+    start_list_strategies(pargs)
+    captured = capsys.readouterr()
+    assert "TestStrategyLegacy" in captured.out
+    assert "legacy_strategy.py" not in captured.out
+    assert "DefaultStrategy" in captured.out
+
+    # Test regular output
+    args = [
+        "list-strategies",
+        "--strategy-path",
+        str(Path(__file__).parent / "strategy"),
+    ]
+    pargs = get_args(args)
+    # pargs['config'] = None
+    start_list_strategies(pargs)
+    captured = capsys.readouterr()
+    assert "TestStrategyLegacy" in captured.out
+    assert "legacy_strategy.py" in captured.out
+    assert "DefaultStrategy" in captured.out
+
+
 def test_start_test_pairlist(mocker, caplog, markets, tickers, default_conf, capsys):
     mocker.patch.multiple('freqtrade.exchange.Exchange',
                           markets=PropertyMock(return_value=markets),