diff --git a/freqtrade/tests/data/test_dataprovider.py b/freqtrade/tests/data/test_dataprovider.py
index 54aab7052..2272f69a3 100644
--- a/freqtrade/tests/data/test_dataprovider.py
+++ b/freqtrade/tests/data/test_dataprovider.py
@@ -13,6 +13,7 @@ def test_ohlcv(mocker, default_conf, ticker_history):
     exchange = get_patched_exchange(mocker, default_conf)
     exchange._klines[("XRP/BTC", ticker_interval)] = ticker_history
     exchange._klines[("UNITTEST/BTC", ticker_interval)] = ticker_history
+
     dp = DataProvider(default_conf, exchange)
     assert dp.runmode == RunMode.DRY_RUN
     assert ticker_history.equals(dp.ohlcv("UNITTEST/BTC", ticker_interval))
@@ -37,11 +38,9 @@ def test_ohlcv(mocker, default_conf, ticker_history):
 
 
 def test_historic_ohlcv(mocker, default_conf, ticker_history):
-
     historymock = MagicMock(return_value=ticker_history)
     mocker.patch("freqtrade.data.dataprovider.load_pair_history", historymock)
 
-    # exchange = get_patched_exchange(mocker, default_conf)
     dp = DataProvider(default_conf, None)
     data = dp.historic_ohlcv("UNITTEST/BTC", "5m")
     assert isinstance(data, DataFrame)
@@ -57,6 +56,7 @@ def test_get_pair_dataframe(mocker, default_conf, ticker_history):
     exchange = get_patched_exchange(mocker, default_conf)
     exchange._klines[("XRP/BTC", ticker_interval)] = ticker_history
     exchange._klines[("UNITTEST/BTC", ticker_interval)] = ticker_history
+
     dp = DataProvider(default_conf, exchange)
     assert dp.runmode == RunMode.DRY_RUN
     assert ticker_history.equals(dp.get_pair_dataframe("UNITTEST/BTC", ticker_interval))
@@ -86,12 +86,11 @@ def test_get_pair_dataframe(mocker, default_conf, ticker_history):
 
 def test_available_pairs(mocker, default_conf, ticker_history):
     exchange = get_patched_exchange(mocker, default_conf)
-
     ticker_interval = default_conf["ticker_interval"]
     exchange._klines[("XRP/BTC", ticker_interval)] = ticker_history
     exchange._klines[("UNITTEST/BTC", ticker_interval)] = ticker_history
-    dp = DataProvider(default_conf, exchange)
 
+    dp = DataProvider(default_conf, exchange)
     assert len(dp.available_pairs) == 2
     assert dp.available_pairs == [
         ("XRP/BTC", ticker_interval),