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Convert CryptoToFiatConverter into a Singleton

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Result in a speed up of the unittest from 60s to 4s

Because it cost time to load Pymarketcap() every time we create
a CryptoToFiatConverter, it worth it to change it into a
Singleton.
This commit is contained in:
Gerald Lonlas
2018-01-21 15:32:49 -08:00
parent 408f120612
commit 28b1ecb109
4 changed files with 21 additions and 24 deletions
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8
freqtrade/tests/test_main.py
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@@ -525,9 +525,7 @@ def test_execute_sell_up(default_conf, ticker, ticker_sell_up, mocker):
mocker.patch.multiple('freqtrade.main.exchange',
validate_pairs=MagicMock(),
get_ticker=ticker)
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
@@ -562,9 +560,7 @@ def test_execute_sell_down(default_conf, ticker, ticker_sell_down, mocker):
mocker.patch.multiple('freqtrade.main.exchange',
validate_pairs=MagicMock(),
get_ticker=ticker)
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