Extract selection generation to a seperate method

freqtrade/commands/deploy_commands.py

@@ -112,6 +112,28 @@ def start_new_hyperopt(args: Dict[str, Any]) -> None:
         raise OperationalException("`new-hyperopt` requires --hyperopt to be set.")
 
 
+def ask_user_config() -> Dict[str, Any]:
+    """
+    Ask user a few questions to build the configuration.
+    :returns: Dict with keys to put into template
+    """
+    sample_selections = {
+        'max_open_trades': 3,
+        'stake_currency': 'USDT',
+        'stake_amount': 100,
+        'fiat_display_currency': 'EUR',
+        'ticker_interval': '15m',
+        'dry_run': True,
+        'exchange_name': 'binance',
+        'exchange_key': 'sampleKey',
+        'exchange_secret': 'Samplesecret',
+        'telegram': False,
+        'telegram_token': 'asdf1244',
+        'telegram_chat_id': '1144444',
+    }
+    return sample_selections
+
+
 def deploy_new_config(config_path: Path, selections: Dict[str, Any]) -> None:
     """
     Applies selections to the template and writes the result to config_path
@@ -142,20 +164,8 @@ def start_new_config(args: Dict[str, Any]) -> None:
     Create a new strategy from a template
     Asking the user questions to fill out the templateaccordingly.
     """
-    sample_selections = {
+    selections = ask_user_config()
-        'stake_currency': 'USDT',
-        'stake_amount': 100,
-        'fiat_display_currency': 'EUR',
-        'ticker_interval': '15m',
-        'dry_run': True,
-        'exchange_name': 'binance',
-        'exchange_key': 'sampleKey',
-        'exchange_secret': 'Samplesecret',
-        'telegram': False,
-        'telegram_token': 'asdf1244',
-        'telegram_chat_id': '1144444',
-    }
     config_path = Path(args['config'][0])
-    deploy_new_config(config_path, sample_selections)
+    deploy_new_config(config_path, selections)
 
 

freqtrade/templates/base_config.json.j2

@@ -1,5 +1,5 @@
 {
-    "max_open_trades": 3,
+    "max_open_trades": {{ max_open_trades }},
     "stake_currency": "{{ stake_currency }}",
     "stake_amount": {{ stake_amount }},
     "tradable_balance_ratio": 0.99,

tests/commands/test_commands.py

@@ -8,8 +8,9 @@ from freqtrade.commands import (start_create_userdir, start_download_data,
                                 start_hyperopt_list, start_hyperopt_show,
                                 start_list_exchanges, start_list_markets,
                                 start_list_strategies, start_list_timeframes,
-                                start_new_hyperopt, start_new_strategy,
+                                start_new_config, start_new_hyperopt,
-                                start_test_pairlist, start_trading)
+                                start_new_strategy, start_test_pairlist,
+                                start_trading)
 from freqtrade.configuration import setup_utils_configuration
 from freqtrade.exceptions import OperationalException
 from freqtrade.state import RunMode
@@ -537,6 +538,22 @@ def test_start_new_hyperopt_no_arg(mocker, caplog):
         start_new_hyperopt(get_args(args))
 
 
+def test_start_new_config(mocker, caplog):
+    wt_mock = mocker.patch.object(Path, "write_text", MagicMock())
+    mocker.patch.object(Path, "exists", MagicMock(return_value=False))
+
+    args = [
+        "new-config",
+        "--config",
+        "coolconfig.json"
+    ]
+    start_new_config(get_args(args))
+
+    assert wt_mock.call_count == 1
+    assert "binance" in wt_mock.call_args_list[0][0][0]
+    assert log_has_re("Writing config to .*", caplog)
+
+
 def test_download_data_keyboardInterrupt(mocker, caplog, markets):
     dl_mock = mocker.patch('freqtrade.commands.data_commands.refresh_backtest_ohlcv_data',
                            MagicMock(side_effect=KeyboardInterrupt))