Move date_minus test to exchange_utils testmethod

tests/exchange/test_exchange.py

@@ -15,9 +15,9 @@ from freqtrade.exceptions import (DDosProtection, DependencyException, ExchangeE
                                   InsufficientFundsError, InvalidOrderException,
                                   OperationalException, PricingError, TemporaryError)
 from freqtrade.exchange import (Binance, Bittrex, Exchange, Kraken, amount_to_precision,
-                                date_minus_candles, market_is_active, price_to_precision,
+                                market_is_active, price_to_precision, timeframe_to_minutes,
-                                timeframe_to_minutes, timeframe_to_msecs, timeframe_to_next_date,
+                                timeframe_to_msecs, timeframe_to_next_date, timeframe_to_prev_date,
-                                timeframe_to_prev_date, timeframe_to_seconds)
+                                timeframe_to_seconds)
 from freqtrade.exchange.common import (API_FETCH_ORDER_RETRY_COUNT, API_RETRY_COUNT,
                                        calculate_backoff, remove_exchange_credentials)
 from freqtrade.exchange.exchange import amount_to_contract_precision
@@ -3719,16 +3719,6 @@ def test_timeframe_to_next_date():
     assert timeframe_to_next_date("5m", date) == date + timedelta(minutes=5)
 
 
-def test_date_minus_candles():
-
-    date = datetime(2019, 8, 12, 13, 25, 0, tzinfo=timezone.utc)
-
-    assert date_minus_candles("5m", 3, date) == date - timedelta(minutes=15)
-    assert date_minus_candles("5m", 5, date) == date - timedelta(minutes=25)
-    assert date_minus_candles("1m", 6, date) == date - timedelta(minutes=6)
-    assert date_minus_candles("1h", 3, date) == date - timedelta(hours=3, minutes=25)
-    assert date_minus_candles("1h", 3) == timeframe_to_prev_date('1h') - timedelta(hours=3)
-
 
 @pytest.mark.parametrize(
     "market_symbol,base,quote,exchange,spot,margin,futures,trademode,add_dict,expected_result",

tests/exchange/test_exchange_utils.py

@@ -1,9 +1,11 @@
 # pragma pylint: disable=missing-docstring, protected-access, invalid-name
+from datetime import datetime, timedelta, timezone
 
 import pytest
 
 from freqtrade.enums import RunMode
 from freqtrade.exceptions import OperationalException
+from freqtrade.exchange import date_minus_candles, timeframe_to_prev_date
 from freqtrade.exchange.check_exchange import check_exchange
 from tests.conftest import log_has_re
 
@@ -83,3 +85,14 @@ def test_check_exchange(default_conf, caplog) -> None:
     with pytest.raises(OperationalException,
                        match=r'This command requires a configured exchange.*'):
         check_exchange(default_conf)
+
+
+def test_date_minus_candles():
+
+    date = datetime(2019, 8, 12, 13, 25, 0, tzinfo=timezone.utc)
+
+    assert date_minus_candles("5m", 3, date) == date - timedelta(minutes=15)
+    assert date_minus_candles("5m", 5, date) == date - timedelta(minutes=25)
+    assert date_minus_candles("1m", 6, date) == date - timedelta(minutes=6)
+    assert date_minus_candles("1h", 3, date) == date - timedelta(hours=3, minutes=25)
+    assert date_minus_candles("1h", 3) == timeframe_to_prev_date('1h') - timedelta(hours=3)