Dataprovider test

tests/data/test_dataprovider.py

@@ -61,6 +61,42 @@ def test_historic_ohlcv(mocker, default_conf, ohlcv_history):
     assert historymock.call_args_list[0][1]["timeframe"] == "5m"
 
 
+def test_historic_trades(mocker, default_conf, trades_history_df):
+    historymock = MagicMock(return_value=trades_history_df)
+    mocker.patch(
+        "freqtrade.data.history.datahandlers.featherdatahandler.FeatherDataHandler._trades_load",
+        historymock
+    )
+
+    dp = DataProvider(default_conf, None)
+    # Live mode..
+    with pytest.raises(OperationalException, match=r"Exchange is not available to DataProvider\."):
+        dp.trades("UNITTEST/BTC", "5m")
+
+    exchange = get_patched_exchange(mocker, default_conf)
+    dp = DataProvider(default_conf, exchange)
+    data = dp.trades("UNITTEST/BTC", "5m")
+
+    assert isinstance(data, DataFrame)
+    assert len(data) == 0
+
+    # Switch to backtest mode
+    default_conf['runmode'] = RunMode.BACKTEST
+    default_conf['dataformat_trades'] = 'feather'
+    exchange = get_patched_exchange(mocker, default_conf)
+    dp = DataProvider(default_conf, exchange)
+    data = dp.trades("UNITTEST/BTC", "5m")
+    assert isinstance(data, DataFrame)
+    assert len(data) == len(trades_history_df)
+
+    # Random other runmode
+    default_conf['runmode'] = RunMode.UTIL_EXCHANGE
+    dp = DataProvider(default_conf, None)
+    data = dp.trades("UNITTEST/BTC", "5m")
+    assert isinstance(data, DataFrame)
+    assert len(data) == 0
+
+
 def test_historic_ohlcv_dataformat(mocker, default_conf, ohlcv_history):
     hdf5loadmock = MagicMock(return_value=ohlcv_history)
     featherloadmock = MagicMock(return_value=ohlcv_history)