Avoid having test-result influence from user_data/

this avoids potential deprecation warnings (or even errors)
 caused by strategies in user_data/strategies

tests/optimize/test_hyperopt_tools.py

@@ -172,8 +172,8 @@ def test__pprint_dict():
 }"""
 
 
-def test_get_strategy_filename(default_conf):
-
+def test_get_strategy_filename(default_conf, tmp_path):
+    default_conf['user_data_dir'] = tmp_path
     x = HyperoptTools.get_strategy_filename(default_conf, 'StrategyTestV3')
     assert isinstance(x, Path)
     assert x == Path(__file__).parents[1] / 'strategy/strats/strategy_test_v3.py'
@@ -233,6 +233,7 @@ def test_export_params(tmp_path):
 
 def test_try_export_params(default_conf, tmp_path, caplog, mocker):
     default_conf['disableparamexport'] = False
+    default_conf['user_data_dir'] = tmp_path
     export_mock = mocker.patch("freqtrade.optimize.hyperopt_tools.HyperoptTools.export_params")
 
     filename = tmp_path / f"{CURRENT_TEST_STRATEGY}.json"

tests/optimize/test_recursive_analysis.py

@@ -14,7 +14,8 @@ from tests.conftest import get_args, log_has_re, patch_exchange
 
 
 @pytest.fixture
-def recursive_conf(default_conf_usdt):
+def recursive_conf(default_conf_usdt, tmp_path):
+    default_conf_usdt['user_data_dir'] = tmp_path
     default_conf_usdt['timerange'] = '20220101-20220501'
 
     default_conf_usdt['strategy_path'] = str(

tests/rpc/test_rpc_apiserver.py

@@ -1648,8 +1648,9 @@ def test_api_pair_history(botclient, mocker):
     assert rc.json()['detail'] == ("No data for UNITTEST/BTC, 5m in 20200111-20200112 found.")
 
 
-def test_api_plot_config(botclient, mocker):
+def test_api_plot_config(botclient, mocker, tmp_path):
     ftbot, client = botclient
+    ftbot.config['user_data_dir'] = tmp_path
 
     rc = client_get(client, f"{BASE_URI}/plot_config")
     assert_response(rc)