forked from LBRYCommunity/lbry-sdk
84 lines
3.1 KiB
Python
84 lines
3.1 KiB
Python
import asyncio
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from decimal import Decimal
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from time import time
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from lbry.schema.claim import Claim
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from lbry.extras.daemon.exchange_rate_manager import (
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ExchangeRate, ExchangeRateManager, CurrencyConversionError,
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BittrexUSDFeed, BittrexBTCFeed,
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CoinExBTCFeed
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)
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from lbry.testcase import AsyncioTestCase, FakeExchangeRateManager, get_fake_exchange_rate_manager
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from lbry.error import InvalidExchangeRateResponseError
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class ExchangeRateTests(AsyncioTestCase):
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def test_invalid_rates(self):
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with self.assertRaises(ValueError):
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ExchangeRate('USDBTC', 0, time())
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with self.assertRaises(ValueError):
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ExchangeRate('USDBTC', -1, time())
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def test_fee_converts_to_lbc(self):
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fee = Claim().stream.fee
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fee.usd = Decimal(10.0)
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fee.address = "bRcHraa8bYJZL7vkh5sNmGwPDERFUjGPP9"
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manager = get_fake_exchange_rate_manager()
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result = manager.convert_currency(fee.currency, "LBC", fee.amount)
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self.assertEqual(20.0, result)
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def test_missing_feed(self):
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fee = Claim().stream.fee
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fee.usd = Decimal(1.0)
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fee.address = "bRcHraa8bYJZL7vkh5sNmGwPDERFUjGPP9"
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manager = FakeExchangeRateManager([BittrexBTCFeed()], {'BTCLBC': 1.0})
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with self.assertRaises(CurrencyConversionError):
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manager.convert_currency(fee.currency, "LBC", fee.amount)
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def test_bittrex_feed_response(self):
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feed = BittrexBTCFeed()
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out = feed.get_rate_from_response({
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"symbol": "LBC-BTC",
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"lastTradeRate": "0.00000323",
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"bidRate": "0.00000322",
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"askRate": "0.00000327"
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})
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self.assertEqual(1.0 / 0.00000323, out)
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with self.assertRaises(InvalidExchangeRateResponseError):
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feed.get_rate_from_response({})
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with self.assertRaises(InvalidExchangeRateResponseError):
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feed.get_rate_from_response({
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"success": True,
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"result": []
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})
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class BadMarketFeed(BittrexUSDFeed):
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def get_response(self):
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raise InvalidExchangeRateResponseError(self.name, 'bad stuff')
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class ExchangeRateManagerTests(AsyncioTestCase):
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async def test_get_rate_failure_retrieved(self):
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manager = ExchangeRateManager([BadMarketFeed])
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manager.start()
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await manager.wait()
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for feed in manager.market_feeds: # no rate but it tried
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self.assertFalse(feed.has_rate)
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self.assertTrue(feed.event.is_set())
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self.addCleanup(manager.stop)
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async def test_median_rate_used(self):
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manager = ExchangeRateManager([BittrexBTCFeed, CoinExBTCFeed])
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for feed in manager.market_feeds:
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feed.last_check = time()
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bittrex, coinex = manager.market_feeds
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bittrex.rate = ExchangeRate(bittrex.market, 1.0, time())
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coinex.rate = ExchangeRate(coinex.market, 2.0, time())
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coinex.rate = ExchangeRate(coinex.market, 3.0, time())
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self.assertEqual(14.0, manager.convert_currency("BTC", "LBC", Decimal(7.0)))
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coinex.rate.spot = 4.0
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self.assertEqual(17.5, manager.convert_currency("BTC", "LBC", Decimal(7.0)))
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