stable/freqtrade/tests/optimize/test_optimize.py

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# pragma pylint: disable=missing-docstring, protected-access, C0103
import json
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import os
import uuid
from shutil import copyfile
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from freqtrade import optimize
from freqtrade.misc import file_dump_json
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from freqtrade.optimize.__init__ import make_testdata_path, download_pairs, \
download_backtesting_testdata, load_tickerdata_file, trim_tickerlist
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from freqtrade.tests.conftest import log_has
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# Change this if modifying BTC_UNITEST testdatafile
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_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(ticker_history, mocker, caplog) -> None:
"""
Test load_data() with 30 min ticker
"""
mocker.patch('freqtrade.optimize.get_ticker_history', return_value=ticker_history)
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file = 'freqtrade/tests/testdata/BTC_UNITTEST-30.json'
_backup_file(file, copy_file=True)
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optimize.load_data(None, pairs=['BTC_UNITTEST'], ticker_interval=30)
assert os.path.isfile(file) is True
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assert not log_has('Download the pair: "BTC_ETH", Interval: 30 min', caplog.record_tuples)
_clean_test_file(file)
def test_load_data_5min_ticker(ticker_history, mocker, caplog) -> None:
"""
Test load_data() with 5 min ticker
"""
mocker.patch('freqtrade.optimize.get_ticker_history', return_value=ticker_history)
file = 'freqtrade/tests/testdata/BTC_ETH-5.json'
_backup_file(file, copy_file=True)
optimize.load_data(None, pairs=['BTC_ETH'], ticker_interval=5)
assert os.path.isfile(file) is True
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assert not log_has('Download the pair: "BTC_ETH", Interval: 5 min', caplog.record_tuples)
_clean_test_file(file)
def test_load_data_1min_ticker(ticker_history, mocker, caplog) -> None:
"""
Test load_data() with 1 min ticker
"""
mocker.patch('freqtrade.optimize.get_ticker_history', return_value=ticker_history)
file = 'freqtrade/tests/testdata/BTC_ETH-1.json'
_backup_file(file, copy_file=True)
optimize.load_data(None, ticker_interval=1, pairs=['BTC_ETH'])
assert os.path.isfile(file) is True
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assert not log_has('Download the pair: "BTC_ETH", Interval: 1 min', caplog.record_tuples)
_clean_test_file(file)
def test_load_data_with_new_pair_1min(ticker_history, mocker, caplog) -> None:
"""
Test load_data() with 1 min ticker
"""
mocker.patch('freqtrade.optimize.get_ticker_history', return_value=ticker_history)
file = 'freqtrade/tests/testdata/BTC_MEME-1.json'
_backup_file(file)
optimize.load_data(None, ticker_interval=1, pairs=['BTC_MEME'])
assert os.path.isfile(file) is True
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assert log_has('Download the pair: "BTC_MEME", Interval: 1 min', caplog.record_tuples)
_clean_test_file(file)
def test_testdata_path() -> None:
assert os.path.join('freqtrade', 'tests', 'testdata') in make_testdata_path(None)
def test_download_pairs(ticker_history, mocker) -> None:
mocker.patch('freqtrade.optimize.__init__.get_ticker_history', return_value=ticker_history)
file1_1 = 'freqtrade/tests/testdata/BTC_MEME-1.json'
file1_5 = 'freqtrade/tests/testdata/BTC_MEME-5.json'
file2_1 = 'freqtrade/tests/testdata/BTC_CFI-1.json'
file2_5 = 'freqtrade/tests/testdata/BTC_CFI-5.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_pairs(None, pairs=['BTC-MEME', 'BTC-CFI'], ticker_interval=1) is True
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)
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assert os.path.isfile(file1_5) is False
assert os.path.isfile(file2_5) is False
assert download_pairs(None, pairs=['BTC-MEME', 'BTC-CFI'], ticker_interval=5) is True
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_pairs_exception(ticker_history, mocker, caplog) -> None:
mocker.patch('freqtrade.optimize.__init__.get_ticker_history', return_value=ticker_history)
mocker.patch('freqtrade.optimize.__init__.download_backtesting_testdata',
side_effect=BaseException('File Error'))
file1_1 = 'freqtrade/tests/testdata/BTC_MEME-1.json'
file1_5 = 'freqtrade/tests/testdata/BTC_MEME-5.json'
_backup_file(file1_1)
_backup_file(file1_5)
download_pairs(None, pairs=['BTC-MEME'], ticker_interval=1)
# clean files freshly downloaded
_clean_test_file(file1_1)
_clean_test_file(file1_5)
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assert log_has('Failed to download the pair: "BTC-MEME", Interval: 1 min', caplog.record_tuples)
def test_download_backtesting_testdata(ticker_history, mocker) -> None:
mocker.patch('freqtrade.optimize.__init__.get_ticker_history', return_value=ticker_history)
# Download a 1 min ticker file
file1 = 'freqtrade/tests/testdata/BTC_XEL-1.json'
_backup_file(file1)
download_backtesting_testdata(None, pair="BTC-XEL", interval=1)
assert os.path.isfile(file1) is True
_clean_test_file(file1)
# Download a 5 min ticker file
file2 = 'freqtrade/tests/testdata/BTC_STORJ-5.json'
_backup_file(file2)
download_backtesting_testdata(None, pair="BTC-STORJ", interval=5)
assert os.path.isfile(file2) is True
_clean_test_file(file2)
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def test_download_backtesting_testdata2(mocker) -> None:
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tick = [{'T': 'bar'}, {'T': 'foo'}]
json_dump_mock = mocker.patch('freqtrade.misc.file_dump_json', return_value=None)
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mocker.patch('freqtrade.optimize.__init__.get_ticker_history', return_value=tick)
download_backtesting_testdata(None, pair="BTC-UNITEST", interval=1)
download_backtesting_testdata(None, pair="BTC-UNITEST", interval=3)
assert json_dump_mock.call_count == 2
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def test_load_tickerdata_file() -> None:
# 7 does not exist in either format.
assert not load_tickerdata_file(None, 'BTC_UNITEST', 7)
# 1 exists only as a .json
tickerdata = load_tickerdata_file(None, 'BTC_UNITEST', 1)
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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(None, 'BTC_UNITEST', 8)
assert _BTC_UNITTEST_LENGTH == len(tickerdata)
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def test_init(default_conf, mocker) -> None:
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conf = {'exchange': {'pair_whitelist': []}}
mocker.patch('freqtrade.optimize.hyperopt_optimize_conf', return_value=conf)
assert {} == optimize.load_data(
'',
pairs=[],
refresh_pairs=True,
ticker_interval=int(default_conf['ticker_interval'])
)
def test_trim_tickerlist() -> None:
with open('freqtrade/tests/testdata/BTC_ETH-1.json') as data_file:
ticker_list = json.load(data_file)
ticker_list_len = len(ticker_list)
# Test the pattern ^(-\d+)$
# This pattern remove X element from the beginning
timerange = ((None, 'line'), None, 5)
ticker = trim_tickerlist(ticker_list, timerange)
ticker_len = len(ticker)
assert ticker_list_len == 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 = (('line', None), 5, None)
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 = (('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)
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# Test a wrong pattern
# This pattern must return the list unchanged
timerange = ((None, None), None, 5)
ticker = trim_tickerlist(ticker_list, timerange)
ticker_len = len(ticker)
assert ticker_list_len == ticker_len
def test_file_dump_json() -> None:
"""
Test file_dump_json()
:return: None
"""
file = 'freqtrade/tests/testdata/test_{id}.json'.format(id=str(uuid.uuid4()))
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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)