tests optimize load_data

freqtrade/optimize/__init__.py

@@ -88,6 +88,12 @@ def download_pairs(datadir, pairs: List[str]) -> bool:
     return True
 
 
+def file_dump_json(filename, data):
+    with open(filename, "wt") as fp:
+        json.dump(data, fp)
+
+
+# FIX: 20180110, suggest rename interval to tick_interval
 def download_backtesting_testdata(datadir: str, pair: str, interval: int = 5) -> bool:
     """
     Download the latest 1 and 5 ticker intervals from Bittrex for the pairs passed in parameters
@@ -127,7 +133,6 @@ def download_backtesting_testdata(datadir: str, pair: str, interval: int = 5) ->
     logger.debug("New End: {}".format(data[-1:][0]['T']))
     data = sorted(data, key=lambda data: data['T'])
 
-    with open(filename, "wt") as fp:
-        json.dump(data, fp)
+    file_dump_json(filename, data)
 
     return True

freqtrade/tests/optimize/test_optimize.py

@@ -2,6 +2,7 @@
 
 import os
 import logging
+# from unittest.mock import MagicMock
 from shutil import copyfile
 from freqtrade import exchange, optimize
 from freqtrade.exchange import Bittrex
@@ -170,7 +171,21 @@ def test_download_backtesting_testdata(default_conf, ticker_history, mocker):
     _clean_test_file(file2)
 
 
+def test_download_backtesting_testdata2(default_conf, mocker):
+    tick = [{'T': 'bar'}, {'T': 'foo'}]
+    mocker.patch('freqtrade.optimize.__init__.file_dump_json', return_value=None)
+    mocker.patch('freqtrade.optimize.__init__.get_ticker_history', return_value=tick)
+    assert download_backtesting_testdata(None, pair="BTC-UNITEST", interval=1)
+    assert download_backtesting_testdata(None, pair="BTC-UNITEST", interval=3)
+
+
 def test_load_tickerdata_file():
     assert not load_tickerdata_file(None, 'BTC_UNITEST', 7)
     tickerdata = load_tickerdata_file(None, 'BTC_UNITEST', 1)
     assert _btc_unittest_length == len(tickerdata)
+
+
+def test_init(mocker):
+    conf = {'exchange': {'pair_whitelist': []}}
+    mocker.patch('freqtrade.optimize.hyperopt_optimize_conf', return_value=conf)
+    assert {} == optimize.load_data('', pairs=[], refresh_pairs=True)