def test_get_cached_data_metadata(data_dir, database):
"""Test that the get_cached_data_metadata function works correctly
and returns just the metadata by reading part ofthe file
"""
contents = """{"start_time": 1301536800, "end_time": 1301540400,
"data": [{"time": 1301536800, "close": 0.298, "high": 0.298, "low": 0.298, "open": 0.298,
"volumefrom": 0.298, "volumeto": 0.298}, {"time": 1301540400, "close": 0.298, "high": 0.298,
"low": 0.298, "open": 0.298, "volumefrom": 0.298, "volumeto": 0.298}]}"""
price_history_dir = get_or_make_price_history_dir(data_dir)
with open(price_history_dir / f'{PRICE_HISTORY_FILE_PREFIX}BTC_USD.json', 'w') as f:
f.write(contents)
cc = Cryptocompare(data_directory=data_dir, database=database)
result = cc.get_cached_data_metadata(
from_asset=A_BTC,
to_asset=A_USD,
)
assert result is not None
assert result[0] == 1301536800
assert result[1] == 1301540400
def test_get_cached_data_metadata(data_dir, database):
"""Test that the get_cached_data_metadata function works correctly
and returns just the metadata by reading part ofthe file
The json cache data in production are saved as one line files.
So here we also keep it in one line on purpose. The previous
regex we used failed with 1 line json file
"""
contents = """{"start_time": 1301536800, "end_time": 1301540400, "data": [{"time": 1301536800, "close": 0.298, "high": 0.298, "low": 0.298, "open": 0.298, "volumefrom": 0.298, "volumeto": 0.298}, {"time": 1301540400, "close": 0.298, "high": 0.298, "low": 0.298, "open": 0.298, "volumefrom": 0.298, "volumeto": 0.298}]}""" # noqa: E501
price_history_dir = get_or_make_price_history_dir(data_dir)
with open(price_history_dir / f'{PRICE_HISTORY_FILE_PREFIX}BTC_USD.json', 'w') as f:
f.write(contents)
cc = Cryptocompare(data_directory=data_dir, database=database)
# make sure that _read_cachefile_metadata runs and they are read from file and not from memory
cc.price_history = {}
result = cc.get_cached_data_metadata(
from_asset=A_BTC,
to_asset=A_USD,
)
assert result is not None
assert result[0] == 1301536800
assert result[1] == 1301540400
