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Merge pull request #331 from gcarq/fix/work_without_network

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Fix _coinmarketcap that fails backtesting and Hyperopt when no network
This commit is contained in:
Gérald LONLAS 2018-01-06 21:33:24 -08:00 committed by GitHub
commit 454cd16df4
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GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 29 additions and 8 deletions
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22
freqtrade/fiat_convert.py
View File

@ -57,7 +57,11 @@ class CryptoToFiatConverter():
]
def __init__(self) -> None:
self._coinmarketcap = Pymarketcap()
try:
self._coinmarketcap = Pymarketcap()
except BaseException:
self._coinmarketcap = None
self._pairs = []
def convert_amount(self, crypto_amount: float, crypto_symbol: str, fiat_symbol: str) -> float:
@ -147,10 +151,12 @@ class CryptoToFiatConverter():
# Check if the fiat convertion you want is supported
if not self._is_supported_fiat(fiat=fiat_symbol):
raise ValueError('The fiat {} is not supported.'.format(fiat_symbol))
return float(
self._coinmarketcap.ticker(
currency=crypto_symbol,
convert=fiat_symbol
)['price_' + fiat_symbol.lower()]
)
try:
return float(
self._coinmarketcap.ticker(
currency=crypto_symbol,
convert=fiat_symbol
)['price_' + fiat_symbol.lower()]
)
except BaseException:
return 0.0

2
freqtrade/tests/rpc/test_rpc_telegram.py
View File

@ -167,6 +167,7 @@ def test_profit_handle(
mocker.patch.multiple('freqtrade.fiat_convert.Pymarketcap',
ticker=MagicMock(return_value={'price_usd': 15000.0}),
_cache_symbols=MagicMock(return_value={'BTC': 1}))
mocker.patch('freqtrade.fiat_convert.CryptoToFiatConverter._find_price', return_value=15000.0)
init(default_conf, create_engine('sqlite://'))
_profit(bot=MagicMock(), update=update)
@ -422,6 +423,7 @@ def test_daily_handle(
mocker.patch.multiple('freqtrade.fiat_convert.Pymarketcap',
ticker=MagicMock(return_value={'price_usd': 15000.0}),
_cache_symbols=MagicMock(return_value={'BTC': 1}))
mocker.patch('freqtrade.fiat_convert.CryptoToFiatConverter._find_price', return_value=15000.0)
init(default_conf, create_engine('sqlite://'))
# Create some test data

13
freqtrade/tests/test_fiat_convert.py
View File

@ -72,8 +72,11 @@ def test_fiat_convert_find_price(mocker):
with pytest.raises(ValueError, match=r'The fiat ABC is not supported.'):
fiat_convert._find_price(crypto_symbol='BTC', fiat_symbol='ABC')
mocker.patch('freqtrade.fiat_convert.CryptoToFiatConverter._find_price', return_value=12345.0)
assert fiat_convert.get_price(crypto_symbol='BTC', fiat_symbol='USD') == 12345.0
assert fiat_convert.get_price(crypto_symbol='btc', fiat_symbol='usd') == 12345.0
mocker.patch('freqtrade.fiat_convert.CryptoToFiatConverter._find_price', return_value=13000.2)
assert fiat_convert.get_price(crypto_symbol='BTC', fiat_symbol='EUR') == 13000.2
@ -83,6 +86,7 @@ def test_fiat_convert_get_price(mocker):
'price_eur': 15000.0
})
mocker.patch('freqtrade.fiat_convert.Pymarketcap.ticker', api_mock)
mocker.patch('freqtrade.fiat_convert.CryptoToFiatConverter._find_price', return_value=28000.0)
fiat_convert = CryptoToFiatConverter()
@ -109,3 +113,12 @@ def test_fiat_convert_get_price(mocker):
fiat_convert._pairs[0]._expiration = expiration
assert fiat_convert.get_price(crypto_symbol='BTC', fiat_symbol='USD') == 28000.0
assert fiat_convert._pairs[0]._expiration is not expiration
def test_fiat_convert_without_network(mocker):
Pymarketcap = MagicMock(side_effect=ImportError('Oh boy, you have no network!'))
mocker.patch('freqtrade.fiat_convert.Pymarketcap', Pymarketcap)
fiat_convert = CryptoToFiatConverter()
assert fiat_convert._coinmarketcap is None
assert fiat_convert._find_price(crypto_symbol='BTC', fiat_symbol='USD') == 0.0