# pragma pylint: disable=missing-docstring, protected-access, C0103 import json import os import uuid from pathlib import Path from shutil import copyfile from unittest.mock import MagicMock, PropertyMock import arrow import pytest from pandas import DataFrame from freqtrade import OperationalException from freqtrade.configuration import TimeRange from freqtrade.data import history from freqtrade.data.history import (download_pair_history, load_cached_data_for_updating, load_tickerdata_file, refresh_backtest_ohlcv_data, trim_tickerlist) from freqtrade.exchange import timeframe_to_minutes from freqtrade.misc import file_dump_json from freqtrade.strategy.default_strategy import DefaultStrategy from freqtrade.tests.conftest import get_patched_exchange, log_has, log_has_re, patch_exchange # Change this if modifying UNITTEST/BTC testdatafile _BTC_UNITTEST_LENGTH = 13681 def _backup_file(file: str, copy_file: bool = False) -> None: """ Backup existing file to avoid deleting the user file :param file: complete path to the file :param touch_file: create an empty file in replacement :return: None """ file_swp = file + '.swp' if os.path.isfile(file): os.rename(file, file_swp) if copy_file: copyfile(file_swp, file) def _clean_test_file(file: str) -> None: """ Backup existing file to avoid deleting the user file :param file: complete path to the file :return: None """ file_swp = file + '.swp' # 1. Delete file from the test if os.path.isfile(file): os.remove(file) # 2. Rollback to the initial file if os.path.isfile(file_swp): os.rename(file_swp, file) def test_load_data_30min_ticker(mocker, caplog, default_conf, testdatadir) -> None: ld = history.load_pair_history(pair='UNITTEST/BTC', ticker_interval='30m', datadir=testdatadir) assert isinstance(ld, DataFrame) assert not log_has( 'Download history data for pair: "UNITTEST/BTC", interval: 30m ' 'and store in None.', caplog ) def test_load_data_7min_ticker(mocker, caplog, default_conf, testdatadir) -> None: ld = history.load_pair_history(pair='UNITTEST/BTC', ticker_interval='7m', datadir=testdatadir) assert not isinstance(ld, DataFrame) assert ld is None assert log_has( 'No history data for pair: "UNITTEST/BTC", interval: 7m. ' 'Use --refresh-pairs-cached option or `freqtrade download-data` ' 'script to download the data', caplog ) def test_load_data_1min_ticker(ticker_history, mocker, caplog, testdatadir) -> None: mocker.patch('freqtrade.exchange.Exchange.get_historic_ohlcv', return_value=ticker_history) file = os.path.join(os.path.dirname(__file__), '..', 'testdata', 'UNITTEST_BTC-1m.json') _backup_file(file, copy_file=True) history.load_data(datadir=testdatadir, ticker_interval='1m', pairs=['UNITTEST/BTC']) assert os.path.isfile(file) is True assert not log_has( 'Download history data for pair: "UNITTEST/BTC", interval: 1m ' 'and store in None.', caplog ) _clean_test_file(file) def test_load_data_with_new_pair_1min(ticker_history_list, mocker, caplog, default_conf, testdatadir) -> None: """ Test load_pair_history() with 1 min ticker """ mocker.patch('freqtrade.exchange.Exchange.get_historic_ohlcv', return_value=ticker_history_list) exchange = get_patched_exchange(mocker, default_conf) file = os.path.join(os.path.dirname(__file__), '..', 'testdata', 'MEME_BTC-1m.json') _backup_file(file) # do not download a new pair if refresh_pairs isn't set history.load_pair_history(datadir=testdatadir, ticker_interval='1m', refresh_pairs=False, pair='MEME/BTC') assert os.path.isfile(file) is False assert log_has( 'No history data for pair: "MEME/BTC", interval: 1m. ' 'Use --refresh-pairs-cached option or `freqtrade download-data` ' 'script to download the data', caplog ) # download a new pair if refresh_pairs is set history.load_pair_history(datadir=testdatadir, ticker_interval='1m', refresh_pairs=True, exchange=exchange, pair='MEME/BTC') assert os.path.isfile(file) is True assert log_has_re( 'Download history data for pair: "MEME/BTC", interval: 1m ' 'and store in .*', caplog ) with pytest.raises(OperationalException, match=r'Exchange needs to be initialized when.*'): history.load_pair_history(datadir=testdatadir, ticker_interval='1m', refresh_pairs=True, exchange=None, pair='MEME/BTC') _clean_test_file(file) def test_load_data_live(default_conf, mocker, caplog, testdatadir) -> None: refresh_mock = MagicMock() mocker.patch("freqtrade.exchange.Exchange.refresh_latest_ohlcv", refresh_mock) exchange = get_patched_exchange(mocker, default_conf) history.load_data(datadir=testdatadir, ticker_interval='5m', pairs=['UNITTEST/BTC', 'UNITTEST2/BTC'], live=True, exchange=exchange) assert refresh_mock.call_count == 1 assert len(refresh_mock.call_args_list[0][0][0]) == 2 assert log_has('Live: Downloading data for all defined pairs ...', caplog) def test_load_data_live_noexchange(default_conf, mocker, caplog, testdatadir) -> None: with pytest.raises(OperationalException, match=r'Exchange needs to be initialized when using live data.'): history.load_data(datadir=testdatadir, ticker_interval='5m', pairs=['UNITTEST/BTC', 'UNITTEST2/BTC'], exchange=None, live=True, ) def test_testdata_path(testdatadir) -> None: assert str(Path('freqtrade') / 'tests' / 'testdata') in str(testdatadir) def test_load_cached_data_for_updating(mocker) -> None: datadir = Path(__file__).parent.parent.joinpath('testdata') test_data = None test_filename = datadir.joinpath('UNITTEST_BTC-1m.json') with open(test_filename, "rt") as file: test_data = json.load(file) # change now time to test 'line' cases # now = last cached item + 1 hour now_ts = test_data[-1][0] / 1000 + 60 * 60 mocker.patch('arrow.utcnow', return_value=arrow.get(now_ts)) # timeframe starts earlier than the cached data # should fully update data timerange = TimeRange('date', None, test_data[0][0] / 1000 - 1, 0) data, start_ts = load_cached_data_for_updating(datadir, 'UNITTEST/BTC', '1m', timerange) assert data == [] assert start_ts == test_data[0][0] - 1000 # same with 'line' timeframe num_lines = (test_data[-1][0] - test_data[1][0]) / 1000 / 60 + 120 data, start_ts = load_cached_data_for_updating(datadir, 'UNITTEST/BTC', '1m', TimeRange(None, 'line', 0, -num_lines)) assert data == [] assert start_ts < test_data[0][0] - 1 # timeframe starts in the center of the cached data # should return the chached data w/o the last item timerange = TimeRange('date', None, test_data[0][0] / 1000 + 1, 0) data, start_ts = load_cached_data_for_updating(datadir, 'UNITTEST/BTC', '1m', timerange) assert data == test_data[:-1] assert test_data[-2][0] < start_ts < test_data[-1][0] # same with 'line' timeframe num_lines = (test_data[-1][0] - test_data[1][0]) / 1000 / 60 + 30 timerange = TimeRange(None, 'line', 0, -num_lines) data, start_ts = load_cached_data_for_updating(datadir, 'UNITTEST/BTC', '1m', timerange) assert data == test_data[:-1] assert test_data[-2][0] < start_ts < test_data[-1][0] # timeframe starts after the chached data # should return the chached data w/o the last item timerange = TimeRange('date', None, test_data[-1][0] / 1000 + 1, 0) data, start_ts = load_cached_data_for_updating(datadir, 'UNITTEST/BTC', '1m', timerange) assert data == test_data[:-1] assert test_data[-2][0] < start_ts < test_data[-1][0] # Try loading last 30 lines. # Not supported by load_cached_data_for_updating, we always need to get the full data. num_lines = 30 timerange = TimeRange(None, 'line', 0, -num_lines) data, start_ts = load_cached_data_for_updating(datadir, 'UNITTEST/BTC', '1m', timerange) assert data == test_data[:-1] assert test_data[-2][0] < start_ts < test_data[-1][0] # no timeframe is set # should return the chached data w/o the last item num_lines = 30 timerange = TimeRange(None, 'line', 0, -num_lines) data, start_ts = load_cached_data_for_updating(datadir, 'UNITTEST/BTC', '1m', timerange) assert data == test_data[:-1] assert test_data[-2][0] < start_ts < test_data[-1][0] # no datafile exist # should return timestamp start time timerange = TimeRange('date', None, now_ts - 10000, 0) data, start_ts = load_cached_data_for_updating(datadir, 'NONEXIST/BTC', '1m', timerange) assert data == [] assert start_ts == (now_ts - 10000) * 1000 # same with 'line' timeframe num_lines = 30 timerange = TimeRange(None, 'line', 0, -num_lines) data, start_ts = load_cached_data_for_updating(datadir, 'NONEXIST/BTC', '1m', timerange) assert data == [] assert start_ts == (now_ts - num_lines * 60) * 1000 # no datafile exist, no timeframe is set # should return an empty array and None data, start_ts = load_cached_data_for_updating(datadir, 'NONEXIST/BTC', '1m', None) assert data == [] assert start_ts is None def test_download_pair_history(ticker_history_list, mocker, default_conf, testdatadir) -> None: mocker.patch('freqtrade.exchange.Exchange.get_historic_ohlcv', return_value=ticker_history_list) exchange = get_patched_exchange(mocker, default_conf) file1_1 = os.path.join(os.path.dirname(__file__), '..', 'testdata', 'MEME_BTC-1m.json') file1_5 = os.path.join(os.path.dirname(__file__), '..', 'testdata', 'MEME_BTC-5m.json') file2_1 = os.path.join(os.path.dirname(__file__), '..', 'testdata', 'CFI_BTC-1m.json') file2_5 = os.path.join(os.path.dirname(__file__), '..', 'testdata', 'CFI_BTC-5m.json') _backup_file(file1_1) _backup_file(file1_5) _backup_file(file2_1) _backup_file(file2_5) assert os.path.isfile(file1_1) is False assert os.path.isfile(file2_1) is False assert download_pair_history(datadir=testdatadir, exchange=exchange, pair='MEME/BTC', ticker_interval='1m') assert download_pair_history(datadir=testdatadir, exchange=exchange, pair='CFI/BTC', ticker_interval='1m') assert not exchange._pairs_last_refresh_time assert os.path.isfile(file1_1) is True assert os.path.isfile(file2_1) is True # clean files freshly downloaded _clean_test_file(file1_1) _clean_test_file(file2_1) assert os.path.isfile(file1_5) is False assert os.path.isfile(file2_5) is False assert download_pair_history(datadir=testdatadir, exchange=exchange, pair='MEME/BTC', ticker_interval='5m') assert download_pair_history(datadir=testdatadir, exchange=exchange, pair='CFI/BTC', ticker_interval='5m') assert not exchange._pairs_last_refresh_time assert os.path.isfile(file1_5) is True assert os.path.isfile(file2_5) is True # clean files freshly downloaded _clean_test_file(file1_5) _clean_test_file(file2_5) def test_download_pair_history2(mocker, default_conf, testdatadir) -> None: tick = [ [1509836520000, 0.00162008, 0.00162008, 0.00162008, 0.00162008, 108.14853839], [1509836580000, 0.00161, 0.00161, 0.00161, 0.00161, 82.390199] ] json_dump_mock = mocker.patch('freqtrade.misc.file_dump_json', return_value=None) mocker.patch('freqtrade.exchange.Exchange.get_historic_ohlcv', return_value=tick) exchange = get_patched_exchange(mocker, default_conf) download_pair_history(testdatadir, exchange, pair="UNITTEST/BTC", ticker_interval='1m') download_pair_history(testdatadir, exchange, pair="UNITTEST/BTC", ticker_interval='3m') assert json_dump_mock.call_count == 2 def test_download_backtesting_data_exception(ticker_history, mocker, caplog, default_conf, testdatadir) -> None: mocker.patch('freqtrade.exchange.Exchange.get_historic_ohlcv', side_effect=Exception('File Error')) exchange = get_patched_exchange(mocker, default_conf) file1_1 = os.path.join(os.path.dirname(__file__), '..', 'testdata', 'MEME_BTC-1m.json') file1_5 = os.path.join(os.path.dirname(__file__), '..', 'testdata', 'MEME_BTC-5m.json') _backup_file(file1_1) _backup_file(file1_5) assert not download_pair_history(datadir=testdatadir, exchange=exchange, pair='MEME/BTC', ticker_interval='1m') # clean files freshly downloaded _clean_test_file(file1_1) _clean_test_file(file1_5) assert log_has( 'Failed to download history data for pair: "MEME/BTC", interval: 1m. ' 'Error: File Error', caplog ) def test_load_tickerdata_file(testdatadir) -> None: # 7 does not exist in either format. assert not load_tickerdata_file(testdatadir, 'UNITTEST/BTC', '7m') # 1 exists only as a .json tickerdata = load_tickerdata_file(testdatadir, 'UNITTEST/BTC', '1m') assert _BTC_UNITTEST_LENGTH == len(tickerdata) # 8 .json is empty and will fail if it's loaded. .json.gz is a copy of 1.json tickerdata = load_tickerdata_file(testdatadir, 'UNITTEST/BTC', '8m') assert _BTC_UNITTEST_LENGTH == len(tickerdata) def test_load_partial_missing(testdatadir, caplog) -> None: # Make sure we start fresh - test missing data at start start = arrow.get('2018-01-01T00:00:00') end = arrow.get('2018-01-11T00:00:00') tickerdata = history.load_data(testdatadir, '5m', ['UNITTEST/BTC'], refresh_pairs=False, timerange=TimeRange('date', 'date', start.timestamp, end.timestamp)) # timedifference in 5 minutes td = ((end - start).total_seconds() // 60 // 5) + 1 assert td != len(tickerdata['UNITTEST/BTC']) start_real = tickerdata['UNITTEST/BTC'].iloc[0, 0] assert log_has(f'Missing data at start for pair ' f'UNITTEST/BTC, data starts at {start_real.strftime("%Y-%m-%d %H:%M:%S")}', caplog) # Make sure we start fresh - test missing data at end caplog.clear() start = arrow.get('2018-01-10T00:00:00') end = arrow.get('2018-02-20T00:00:00') tickerdata = history.load_data(datadir=testdatadir, ticker_interval='5m', pairs=['UNITTEST/BTC'], refresh_pairs=False, timerange=TimeRange('date', 'date', start.timestamp, end.timestamp)) # timedifference in 5 minutes td = ((end - start).total_seconds() // 60 // 5) + 1 assert td != len(tickerdata['UNITTEST/BTC']) # Shift endtime with +5 - as last candle is dropped (partial candle) end_real = arrow.get(tickerdata['UNITTEST/BTC'].iloc[-1, 0]).shift(minutes=5) assert log_has(f'Missing data at end for pair ' f'UNITTEST/BTC, data ends at {end_real.strftime("%Y-%m-%d %H:%M:%S")}', caplog) def test_init(default_conf, mocker) -> None: exchange = get_patched_exchange(mocker, default_conf) assert {} == history.load_data( datadir='', exchange=exchange, pairs=[], refresh_pairs=True, ticker_interval=default_conf['ticker_interval'] ) def test_trim_tickerlist() -> None: file = os.path.join(os.path.dirname(__file__), '..', 'testdata', 'UNITTEST_BTC-1m.json') with open(file) as data_file: ticker_list = json.load(data_file) ticker_list_len = len(ticker_list) # Test the pattern ^(-\d+)$ # This pattern uses the latest N elements timerange = TimeRange(None, 'line', 0, -5) ticker = trim_tickerlist(ticker_list, timerange) ticker_len = len(ticker) assert ticker_len == 5 assert ticker_list[0] is not ticker[0] # The first element should be different assert ticker_list[-1] is ticker[-1] # The last element must be the same # Test the pattern ^(\d+)-$ # This pattern keep X element from the end timerange = TimeRange('line', None, 5, 0) ticker = trim_tickerlist(ticker_list, timerange) ticker_len = len(ticker) assert ticker_len == 5 assert ticker_list[0] is ticker[0] # The first element must be the same assert ticker_list[-1] is not ticker[-1] # The last element should be different # Test the pattern ^(\d+)-(\d+)$ # This pattern extract a window timerange = TimeRange('index', 'index', 5, 10) ticker = trim_tickerlist(ticker_list, timerange) ticker_len = len(ticker) assert ticker_len == 5 assert ticker_list[0] is not ticker[0] # The first element should be different assert ticker_list[5] is ticker[0] # The list starts at the index 5 assert ticker_list[9] is ticker[-1] # The list ends at the index 9 (5 elements) # Test the pattern ^(\d{8})-(\d{8})$ # This pattern extract a window between the dates timerange = TimeRange('date', 'date', ticker_list[5][0] / 1000, ticker_list[10][0] / 1000 - 1) ticker = trim_tickerlist(ticker_list, timerange) ticker_len = len(ticker) assert ticker_len == 5 assert ticker_list[0] is not ticker[0] # The first element should be different assert ticker_list[5] is ticker[0] # The list starts at the index 5 assert ticker_list[9] is ticker[-1] # The list ends at the index 9 (5 elements) # Test the pattern ^-(\d{8})$ # This pattern extracts elements from the start to the date timerange = TimeRange(None, 'date', 0, ticker_list[10][0] / 1000 - 1) ticker = trim_tickerlist(ticker_list, timerange) ticker_len = len(ticker) assert ticker_len == 10 assert ticker_list[0] is ticker[0] # The start of the list is included assert ticker_list[9] is ticker[-1] # The element 10 is not included # Test the pattern ^(\d{8})-$ # This pattern extracts elements from the date to now timerange = TimeRange('date', None, ticker_list[10][0] / 1000 - 1, None) ticker = trim_tickerlist(ticker_list, timerange) ticker_len = len(ticker) assert ticker_len == ticker_list_len - 10 assert ticker_list[10] is ticker[0] # The first element is element #10 assert ticker_list[-1] is ticker[-1] # The last element is the same # Test a wrong pattern # This pattern must return the list unchanged timerange = TimeRange(None, None, None, 5) ticker = trim_tickerlist(ticker_list, timerange) ticker_len = len(ticker) assert ticker_list_len == ticker_len # Test invalid timerange (start after stop) timerange = TimeRange('index', 'index', 10, 5) with pytest.raises(ValueError, match=r'The timerange .* is incorrect'): trim_tickerlist(ticker_list, timerange) assert ticker_list_len == ticker_len # passing empty list timerange = TimeRange(None, None, None, 5) ticker = trim_tickerlist([], timerange) assert 0 == len(ticker) assert not ticker def test_file_dump_json_tofile() -> None: file = os.path.join(os.path.dirname(__file__), '..', 'testdata', 'test_{id}.json'.format(id=str(uuid.uuid4()))) data = {'bar': 'foo'} # check the file we will create does not exist assert os.path.isfile(file) is False # Create the Json file file_dump_json(file, data) # Check the file was create assert os.path.isfile(file) is True # Open the Json file created and test the data is in it with open(file) as data_file: json_from_file = json.load(data_file) assert 'bar' in json_from_file assert json_from_file['bar'] == 'foo' # Remove the file _clean_test_file(file) def test_get_timeframe(default_conf, mocker, testdatadir) -> None: patch_exchange(mocker) strategy = DefaultStrategy(default_conf) data = strategy.tickerdata_to_dataframe( history.load_data( datadir=testdatadir, ticker_interval='1m', pairs=['UNITTEST/BTC'] ) ) min_date, max_date = history.get_timeframe(data) assert min_date.isoformat() == '2017-11-04T23:02:00+00:00' assert max_date.isoformat() == '2017-11-14T22:58:00+00:00' def test_validate_backtest_data_warn(default_conf, mocker, caplog, testdatadir) -> None: patch_exchange(mocker) strategy = DefaultStrategy(default_conf) data = strategy.tickerdata_to_dataframe( history.load_data( datadir=testdatadir, ticker_interval='1m', pairs=['UNITTEST/BTC'], fill_up_missing=False ) ) min_date, max_date = history.get_timeframe(data) caplog.clear() assert history.validate_backtest_data(data['UNITTEST/BTC'], 'UNITTEST/BTC', min_date, max_date, timeframe_to_minutes('1m')) assert len(caplog.record_tuples) == 1 assert log_has( "UNITTEST/BTC has missing frames: expected 14396, got 13680, that's 716 missing values", caplog) def test_validate_backtest_data(default_conf, mocker, caplog, testdatadir) -> None: patch_exchange(mocker) strategy = DefaultStrategy(default_conf) timerange = TimeRange('index', 'index', 200, 250) data = strategy.tickerdata_to_dataframe( history.load_data( datadir=testdatadir, ticker_interval='5m', pairs=['UNITTEST/BTC'], timerange=timerange ) ) min_date, max_date = history.get_timeframe(data) caplog.clear() assert not history.validate_backtest_data(data['UNITTEST/BTC'], 'UNITTEST/BTC', min_date, max_date, timeframe_to_minutes('5m')) assert len(caplog.record_tuples) == 0 def test_refresh_backtest_ohlcv_data(mocker, default_conf, markets, caplog, testdatadir): dl_mock = mocker.patch('freqtrade.data.history.download_pair_history', MagicMock()) mocker.patch( 'freqtrade.exchange.Exchange.markets', PropertyMock(return_value=markets) ) mocker.patch.object(Path, "exists", MagicMock(return_value=True)) mocker.patch.object(Path, "unlink", MagicMock()) ex = get_patched_exchange(mocker, default_conf) timerange = TimeRange.parse_timerange("20190101-20190102") refresh_backtest_ohlcv_data(exchange=ex, pairs=["ETH/BTC", "XRP/BTC"], timeframes=["1m", "5m"], dl_path=testdatadir, timerange=timerange, erase=True ) assert dl_mock.call_count == 4 assert dl_mock.call_args[1]['timerange'].starttype == 'date' assert log_has("Downloading pair ETH/BTC, interval 1m.", caplog) def test_download_data_no_markets(mocker, default_conf, caplog, testdatadir): dl_mock = mocker.patch('freqtrade.data.history.download_pair_history', MagicMock()) mocker.patch( 'freqtrade.exchange.Exchange.markets', PropertyMock(return_value={}) ) ex = get_patched_exchange(mocker, default_conf) timerange = TimeRange.parse_timerange("20190101-20190102") unav_pairs = refresh_backtest_ohlcv_data(exchange=ex, pairs=["ETH/BTC", "XRP/BTC"], timeframes=["1m", "5m"], dl_path=testdatadir, timerange=timerange, erase=False ) assert dl_mock.call_count == 0 assert "ETH/BTC" in unav_pairs assert "XRP/BTC" in unav_pairs assert log_has("Skipping pair ETH/BTC...", caplog)