mirror of
https://github.com/eitchtee/WYGIWYH.git
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Herculino Trotta
94 lines
2.8 KiB
Python
94 lines
2.8 KiB
Python
from decimal import Decimal
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from unittest import TestCase
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from apps.currencies.exchange_rates.fetcher import PROVIDER_MAPPING
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from apps.currencies.exchange_rates.providers import YFinanceMarketsProvider
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from apps.currencies.models import ExchangeRateService
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class _FakeSeries:
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def __init__(self, values):
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self._values = values
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def dropna(self):
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return _FakeSeries([value for value in self._values if value is not None])
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@property
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def iloc(self):
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return self
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def __getitem__(self, index):
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return self._values[index]
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class _FakeHistory:
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def __init__(self, close_values):
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self._close_values = close_values
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self.empty = not close_values
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def __getitem__(self, field):
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if field != "Close":
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raise KeyError(field)
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return _FakeSeries(self._close_values)
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class _FakeCurrency:
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def __init__(self, code, exchange_currency=None):
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self.code = code
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self.exchange_currency = exchange_currency
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class _FakeTicker:
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def __init__(self, history):
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self.history_result = history
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self.history_kwargs = None
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def history(self, **kwargs):
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self.history_kwargs = kwargs
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return self.history_result
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class YFinanceMarketsProviderTests(TestCase):
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def setUp(self):
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self.brl = _FakeCurrency("BRL")
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self.asset = _FakeCurrency("AAPL", exchange_currency=self.brl)
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def test_returns_latest_hourly_close_using_symbol_verbatim(self):
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ticker = _FakeTicker(_FakeHistory([36.90, None, 37.42]))
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requested_symbols = []
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def ticker_factory(symbol):
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requested_symbols.append(symbol)
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return ticker
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provider = YFinanceMarketsProvider(ticker_factory=ticker_factory)
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rates = provider.get_rates([self.asset], {self.brl})
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self.assertEqual(rates, [(self.brl, self.asset, Decimal("37.42"))])
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self.assertEqual(requested_symbols, ["AAPL"])
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self.assertEqual(
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ticker.history_kwargs,
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{"period": "5d", "interval": "1h", "auto_adjust": False},
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)
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def test_passes_brazilian_symbol_verbatim_and_skips_empty_history(self):
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self.asset.code = "PETR4.SA"
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ticker = _FakeTicker(_FakeHistory([]))
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requested_symbols = []
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provider = YFinanceMarketsProvider(
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ticker_factory=lambda symbol: requested_symbols.append(symbol)
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or ticker
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)
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rates = provider.get_rates([self.asset], {self.brl})
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self.assertEqual(rates, [])
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self.assertEqual(requested_symbols, ["PETR4.SA"])
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def test_is_registered_without_an_api_key(self):
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self.assertFalse(YFinanceMarketsProvider.requires_api_key())
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self.assertIs(PROVIDER_MAPPING["yfinance"], YFinanceMarketsProvider)
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self.assertEqual(ExchangeRateService.ServiceType.YFINANCE, "yfinance")
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