forked from LBRYCommunity/lbry-sdk
further refactor and simplification
This commit is contained in:
Lex Berezhny
parent
25b6c1b6ca
commit
c044e1ea8c
4 changed files with 207 additions and 393 deletions
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@ -1,10 +1,9 @@
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import asyncio
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import time
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import logging
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import json
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import time
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import asyncio
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import logging
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from decimal import Decimal
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from typing import Optional
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from json.decoder import JSONDecodeError
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from typing import Optional, Iterable, Type
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from aiohttp.client_exceptions import ClientError
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from lbry.error import InvalidExchangeRateResponseError, CurrencyConversionError
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from lbry.utils import aiohttp_request
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@ -12,10 +11,6 @@ from lbry.wallet.dewies import lbc_to_dewies
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log = logging.getLogger(__name__)
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CURRENCY_PAIRS = ["USDBTC", "BTCLBC"]
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BITTREX_FEE = 0.0025
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COINBASE_FEE = 0.0 # add fee
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class ExchangeRate:
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def __init__(self, market, spot, ts):
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@ -28,217 +23,157 @@ class ExchangeRate:
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self.ts = ts
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def __repr__(self):
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out = f"Currency pair:{self.currency_pair}, spot:{self.spot}, ts:{self.ts}"
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return out
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return f"Currency pair:{self.currency_pair}, spot:{self.spot}, ts:{self.ts}"
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def as_dict(self):
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return {'spot': self.spot, 'ts': self.ts}
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class Deserializer:
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def __init__(self, content_type):
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self.content_type = content_type
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self._deserializer = self._get_deserializer(content_type)
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def deserialize(self, body):
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return self._deserializer(body)
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def _get_deserializer(self, content_type):
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if content_type == 'json':
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return self._deserialize_json
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else:
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raise ValueError('Content type {content_type} is not supported')
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def _deserialize_json(self, body):
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try:
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return json.loads(body)
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except (ValueError, JSONDecodeError):
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log.error('Failed to deserialize response body: %s', body)
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raise
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class AioHttpManager:
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REQUESTS_TIMEOUT = 20
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def __init__(self, url, params, content_type):
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self.url = url
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self.params = params
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self.content_type = content_type
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async def _make_request(self):
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async with aiohttp_request('get', self.url, params=self.params) as response:
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return await response
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async def get_response_body(self):
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response = await asyncio.wait_for(self._make_request(), self.REQUESTS_TIMEOUT)
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if self.content_type not in response.headers.get('Content-Type'):
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raise InvalidExchangeRateResponseError(self.url, f'Received response is not of type {self.content_type}')
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return response.read().decode()
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class MarketFeed:
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EXCHANGE_RATE_UPDATE_RATE_SEC = 300
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name: str
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market: str
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url: str
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params = {}
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fee = 0
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def __init__(self, market: str, name: str, url: str, params: dict, fee: float,
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content_type: str = 'json', network_manager=AioHttpManager,
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deserializer=Deserializer):
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self.market = market
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self.name = name
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self.fee = fee
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self.rate = None
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self._network_manager = network_manager(url, params, content_type)
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self._deserializer = deserializer(content_type)
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update_interval = 300
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request_timeout = 50
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def __init__(self):
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self.rate: Optional[float] = None
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self.last_check = 0
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self._last_response = None
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self._task: Optional[asyncio.Task] = None
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self._online = True
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self.event = asyncio.Event()
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def rate_is_initialized(self):
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@property
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def has_rate(self):
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return self.rate is not None
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@property
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def is_online(self):
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return self._online
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return self.last_check+self.update_interval+self.request_timeout > time.time()
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def _on_error(self, err):
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log.warning("There was a problem updating %s exchange rate information from %s",
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self.market, self.name)
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log.debug("Exchange rate error (%s from %s): %s", self.market, self.name, err)
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self._online = False
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def _handle_response(self, body):
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def get_rate_from_response(self, response):
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raise NotImplementedError()
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def _subtract_fee(self, from_amount):
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# increase amount to account for market fees
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return from_amount / (1.0 - self.fee)
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async def get_response(self):
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async with aiohttp_request('get', self.url, params=self.params, timeout=self.request_timeout) as response:
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self._last_response = await response.json()
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return self._last_response
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def _save_price(self, price):
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log.debug("Saving price update %f for %s from %s" % (price, self.market, self.name))
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self.rate = ExchangeRate(self.market, price, int(time.time()))
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self._online = True
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async def _get_current_price(self):
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body = self._deserializer.deserialize(await self._network_manager.get_response_body())
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return self._subtract_fee(self._handle_response(body))
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async def _update_price(self):
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async def get_rate(self):
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try:
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self._save_price(await self._get_current_price())
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except (asyncio.TimeoutError, InvalidExchangeRateResponseError, ClientError) as err:
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self._on_error(err)
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data = await self.get_response()
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rate = self.get_rate_from_response(data)
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rate = rate / (1.0 - self.fee)
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log.debug("Saving rate update %f for %s from %s", rate, self.market, self.name)
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self.rate = ExchangeRate(self.market, rate, int(time.time()))
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self.last_check = time.time()
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self.event.set()
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return self.rate
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except asyncio.CancelledError:
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raise
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except asyncio.TimeoutError:
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log.warning("Timed out fetching exchange rate from %s.", self.name)
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except json.JSONDecodeError as e:
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log.warning("Could not parse exchange rate response from %s: %s", self.name, e.doc)
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except InvalidExchangeRateResponseError as e:
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log.warning(str(e))
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except Exception as e:
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log.exception("Exchange rate error (%s from %s):", self.market, self.name)
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async def _keep_updated(self):
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async def keep_updated(self):
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while True:
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self._update_price()
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await asyncio.sleep(self.EXCHANGE_RATE_UPDATE_RATE_SEC)
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await self.get_rate()
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await asyncio.sleep(self.update_interval)
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def start(self):
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if not self._task:
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self._task = asyncio.create_task(self._keep_updated)
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self._task = asyncio.create_task(self.keep_updated())
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def stop(self):
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if self._task and not self._task.done():
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self._task.cancel()
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self._task = None
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self.event.clear()
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class BittrexFeed(MarketFeed):
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def __init__(self):
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super().__init__(
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"BTCLBC",
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"Bittrex",
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"https://bittrex.com/api/v1.1/public/getmarkethistory",
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{'market': 'BTC-LBC', 'count': 50},
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BITTREX_FEE
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)
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name = "Bittrex"
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market = "BTCLBC"
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url = "https://bittrex.com/api/v1.1/public/getmarkethistory"
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params = {'market': 'BTC-LBC', 'count': 50}
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fee = 0.0025
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def _handle_response(self, json_response):
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def get_rate_from_response(self, json_response):
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if 'result' not in json_response:
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raise InvalidExchangeRateResponseError(self.name, 'result not found')
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trades = json_response['result']
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if len(trades) == 0:
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raise InvalidExchangeRateResponseError(self.market, 'trades not found')
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raise InvalidExchangeRateResponseError(self.name, 'trades not found')
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totals = sum([i['Total'] for i in trades])
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qtys = sum([i['Quantity'] for i in trades])
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if totals <= 0 or qtys <= 0:
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raise InvalidExchangeRateResponseError(self.market, 'quantities were not positive')
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raise InvalidExchangeRateResponseError(self.name, 'quantities were not positive')
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vwap = totals / qtys
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return float(1.0 / vwap)
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class LBRYioFeed(MarketFeed):
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def __init__(self):
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super().__init__(
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"BTCLBC",
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"lbry.com",
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"https://api.lbry.com/lbc/exchange_rate",
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{},
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0.0,
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)
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class LBRYFeed(MarketFeed):
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name = "lbry.com"
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market = "BTCLBC"
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url = "https://api.lbry.com/lbc/exchange_rate"
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def _handle_response(self, json_response):
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def get_rate_from_response(self, json_response):
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if 'data' not in json_response:
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raise InvalidExchangeRateResponseError(self.name, 'result not found')
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return 1.0 / json_response['data']['lbc_btc']
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class LBRYioBTCFeed(MarketFeed):
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def __init__(self):
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super().__init__(
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"USDBTC",
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"lbry.com",
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"https://api.lbry.com/lbc/exchange_rate",
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{},
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0.0,
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)
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class LBRYBTCFeed(LBRYFeed):
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market = "USDBTC"
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def _handle_response(self, json_response):
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def get_rate_from_response(self, json_response):
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if 'data' not in json_response:
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raise InvalidExchangeRateResponseError(self.name, 'result not found')
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return 1.0 / json_response['data']['btc_usd']
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class CryptonatorBTCFeed(MarketFeed):
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def __init__(self):
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super().__init__(
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"USDBTC",
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"cryptonator.com",
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"https://api.cryptonator.com/api/ticker/usd-btc",
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{},
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0.0,
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)
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def _handle_response(self, json_response):
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if 'ticker' not in json_response or len(json_response['ticker']) == 0 or \
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'success' not in json_response or json_response['success'] is not True:
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raise InvalidExchangeRateResponseError(self.name, 'result not found')
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return float(json_response['ticker']['price'])
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class CryptonatorFeed(MarketFeed):
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def __init__(self):
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super().__init__(
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"BTCLBC",
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"cryptonator.com",
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"https://api.cryptonator.com/api/ticker/btc-lbc",
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{},
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0.0,
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)
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name = "cryptonator.com"
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market = "BTCLBC"
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url = "https://api.cryptonator.com/api/ticker/btc-lbc"
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def _handle_response(self, json_response):
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def get_rate_from_response(self, json_response):
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if 'ticker' not in json_response or len(json_response['ticker']) == 0 or \
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'success' not in json_response or json_response['success'] is not True:
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raise InvalidExchangeRateResponseError(self.name, 'result not found')
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return float(json_response['ticker']['price'])
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class CryptonatorBTCFeed(CryptonatorFeed):
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market = "USDBTC"
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url = "https://api.cryptonator.com/api/ticker/usd-btc"
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FEEDS: Iterable[Type[MarketFeed]] = (
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LBRYFeed,
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LBRYBTCFeed,
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BittrexFeed,
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CryptonatorFeed,
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CryptonatorBTCFeed,
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)
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class ExchangeRateManager:
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def __init__(self):
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self.market_feeds = [
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LBRYioBTCFeed(),
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LBRYioFeed(),
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BittrexFeed(),
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# CryptonatorBTCFeed(),
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# CryptonatorFeed()
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]
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def __init__(self, feeds=FEEDS):
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self.market_feeds = [Feed() for Feed in feeds]
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def wait(self):
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return asyncio.wait(
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[feed.event.wait() for feed in self.market_feeds],
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)
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def start(self):
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log.info("Starting exchange rate manager")
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@ -257,11 +192,11 @@ class ExchangeRateManager:
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return round(amount, 8)
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for market in self.market_feeds:
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if (market.rate_is_initialized() and market.is_online() and
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if (market.has_rate and market.is_online and
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market.rate.currency_pair == (from_currency, to_currency)):
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return round(amount * Decimal(market.rate.spot), 8)
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for market in self.market_feeds:
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if (market.rate_is_initialized() and market.is_online() and
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if (market.has_rate and market.is_online and
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market.rate.currency_pair[0] == from_currency):
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return round(self.convert_currency(
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market.rate.currency_pair[1], to_currency, amount * Decimal(market.rate.spot)), 8)
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23
lbry/tests/integration/test_exchange_rate_manager.py
Normal file
23
lbry/tests/integration/test_exchange_rate_manager.py
Normal file
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@ -0,0 +1,23 @@
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from decimal import Decimal
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from torba.testcase import AsyncioTestCase
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from lbry.extras.daemon.exchange_rate_manager import (
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ExchangeRate, ExchangeRateManager
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)
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class TestExchangeRateManager(AsyncioTestCase):
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async def test_exchange_rate_manager(self):
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manager = ExchangeRateManager()
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manager.start()
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self.addCleanup(manager.stop)
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for feed in manager.market_feeds:
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self.assertFalse(feed.is_online)
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self.assertIsNone(feed.rate)
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await manager.wait()
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for feed in manager.market_feeds:
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self.assertTrue(feed.is_online)
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self.assertIsInstance(feed.rate, ExchangeRate)
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lbc = manager.convert_currency('USD', 'LBC', Decimal('0.01'))
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self.assertGreaterEqual(lbc, 0.1)
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self.assertLessEqual(lbc, 10.0)
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@ -1,206 +1,137 @@
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import unittest
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import logging
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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 import exchange_rate_manager
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from lbry.extras.daemon.exchange_rate_manager import (
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ExchangeRate, ExchangeRateManager, CurrencyConversionError,
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LBRYFeed, LBRYBTCFeed,
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CryptonatorFeed, CryptonatorBTCFeed,
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BittrexFeed,
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)
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from torba.testcase import AsyncioTestCase
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from lbry.error import InvalidExchangeRateResponseError
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from tests import test_utils
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class BTCLBCFeed(exchange_rate_manager.MarketFeed):
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def __init__(self):
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super().__init__(
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"BTCLBC",
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"market name",
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"derp.com",
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None,
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0.0
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)
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class USDBTCFeed(exchange_rate_manager.MarketFeed):
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def __init__(self):
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super().__init__(
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"USDBTC",
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"market name",
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"derp.com",
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None,
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0.0
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)
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class DummyExchangeRateManager(exchange_rate_manager.ExchangeRateManager):
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class DummyExchangeRateManager(ExchangeRateManager):
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def __init__(self, market_feeds, rates):
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self.market_feeds = market_feeds
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for feed in self.market_feeds:
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feed.rate = exchange_rate_manager.ExchangeRate(
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feed.market, rates[feed.market]['spot'], rates[feed.market]['ts'])
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feed.last_check = time()
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feed.rate = ExchangeRate(feed.market, rates[feed.market], time())
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def get_dummy_exchange_rate_manager(time):
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rates = {
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'BTCLBC': {'spot': 3.0, 'ts': time.time() + 1},
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'USDBTC': {'spot': 2.0, 'ts': time.time() + 2}
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}
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return DummyExchangeRateManager([BTCLBCFeed(), USDBTCFeed()], rates)
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def get_dummy_exchange_rate_manager():
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return DummyExchangeRateManager(
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[LBRYFeed(), LBRYBTCFeed()],
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{'BTCLBC': 3.0, 'USDBTC': 2.0}
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)
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class ExchangeRateTest(unittest.TestCase):
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def setUp(self):
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test_utils.reset_time(self)
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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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exchange_rate_manager.ExchangeRate('USDBTC', 0, test_utils.DEFAULT_ISO_TIME)
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ExchangeRate('USDBTC', 0, time())
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with self.assertRaises(ValueError):
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exchange_rate_manager.ExchangeRate('USDBTC', -1, test_utils.DEFAULT_ISO_TIME)
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class FeeTest(unittest.TestCase):
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def setUp(self):
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test_utils.reset_time(self)
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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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rates = {
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'BTCLBC': {'spot': 3.0, 'ts': test_utils.DEFAULT_ISO_TIME + 1},
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'USDBTC': {'spot': 2.0, 'ts': test_utils.DEFAULT_ISO_TIME + 2}
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}
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|
||||
market_feeds = [BTCLBCFeed(), USDBTCFeed()]
|
||||
manager = DummyExchangeRateManager(market_feeds, rates)
|
||||
manager = get_dummy_exchange_rate_manager()
|
||||
result = manager.convert_currency(fee.currency, "LBC", fee.amount)
|
||||
self.assertEqual(60.0, result)
|
||||
|
||||
def test_missing_feed(self):
|
||||
# test when a feed is missing for conversion
|
||||
fee = Claim().stream.fee
|
||||
fee.usd = Decimal(1.0)
|
||||
fee.address = "bRcHraa8bYJZL7vkh5sNmGwPDERFUjGPP9"
|
||||
|
||||
rates = {
|
||||
'BTCLBC': {'spot': 1.0, 'ts': test_utils.DEFAULT_ISO_TIME + 1},
|
||||
}
|
||||
market_feeds = [BTCLBCFeed()]
|
||||
manager = DummyExchangeRateManager(market_feeds, rates)
|
||||
with self.assertRaises(Exception):
|
||||
manager = DummyExchangeRateManager([LBRYFeed()], {'BTCLBC': 1.0})
|
||||
with self.assertRaises(CurrencyConversionError):
|
||||
manager.convert_currency(fee.currency, "LBC", fee.amount)
|
||||
|
||||
|
||||
class LBRYioFeedTest(unittest.TestCase):
|
||||
def test_handle_response(self):
|
||||
feed = exchange_rate_manager.LBRYioFeed()
|
||||
|
||||
response = {
|
||||
def test_lbry_feed_response(self):
|
||||
feed = LBRYFeed()
|
||||
out = feed.get_rate_from_response({
|
||||
'data': {
|
||||
'fresh': 0, 'lbc_usd': 0.05863062523378918, 'lbc_btc': 5.065289549855739e-05, 'btc_usd': 1157.498
|
||||
'fresh': 0, 'lbc_usd': 0.05863062523378918,
|
||||
'lbc_btc': 5.065289549855739e-05, 'btc_usd': 1157.498
|
||||
},
|
||||
'success': True,
|
||||
'error': None
|
||||
}
|
||||
out = feed._handle_response(response)
|
||||
expected = 1.0 / 5.065289549855739e-05
|
||||
self.assertEqual(expected, out)
|
||||
|
||||
response = {}
|
||||
})
|
||||
self.assertEqual(1.0 / 5.065289549855739e-05, out)
|
||||
with self.assertRaises(InvalidExchangeRateResponseError):
|
||||
feed._handle_response(response)
|
||||
|
||||
response = {
|
||||
feed.get_rate_from_response({})
|
||||
with self.assertRaises(InvalidExchangeRateResponseError):
|
||||
feed.get_rate_from_response({
|
||||
"success": True,
|
||||
"result": []
|
||||
}
|
||||
with self.assertRaises(InvalidExchangeRateResponseError):
|
||||
feed._handle_response(response)
|
||||
})
|
||||
|
||||
|
||||
class TestExchangeRateFeeds(unittest.TestCase):
|
||||
def test_handle_lbryio_btc_response(self):
|
||||
feed = exchange_rate_manager.LBRYioBTCFeed()
|
||||
|
||||
response = {
|
||||
def test_lbry_btc_feed_response(self):
|
||||
feed = LBRYBTCFeed()
|
||||
out = feed.get_rate_from_response({
|
||||
'data': {
|
||||
'fresh': 0, 'lbc_usd': 0.05863062523378918, 'lbc_btc': 5.065289549855739e-05, 'btc_usd': 1157.498
|
||||
'fresh': 0, 'lbc_usd': 0.05863062523378918,
|
||||
'lbc_btc': 5.065289549855739e-05, 'btc_usd': 1157.498
|
||||
},
|
||||
'success': True,
|
||||
'error': None
|
||||
}
|
||||
out = feed._handle_response(response)
|
||||
expected = 1.0 / 1157.498
|
||||
self.assertEqual(expected, out)
|
||||
|
||||
response = {}
|
||||
})
|
||||
self.assertEqual(1.0 / 1157.498, out)
|
||||
with self.assertRaises(InvalidExchangeRateResponseError):
|
||||
out = feed._handle_response(response)
|
||||
|
||||
response = {
|
||||
feed.get_rate_from_response({})
|
||||
with self.assertRaises(InvalidExchangeRateResponseError):
|
||||
feed.get_rate_from_response({
|
||||
"success": True,
|
||||
"result": {}
|
||||
}
|
||||
with self.assertRaises(InvalidExchangeRateResponseError):
|
||||
out = feed._handle_response(response)
|
||||
})
|
||||
|
||||
def test_handle_cryptonator_lbc_response(self):
|
||||
feed = exchange_rate_manager.CryptonatorFeed()
|
||||
|
||||
response = {
|
||||
def test_cryptonator_lbc_feed_response(self):
|
||||
feed = CryptonatorFeed()
|
||||
out = feed.get_rate_from_response({
|
||||
'ticker': {
|
||||
'base': 'BTC', 'target': 'LBC', 'price': 23657.44026496, 'volume': '', 'change': -5.59806916,
|
||||
'base': 'BTC', 'target': 'LBC', 'price': 23657.44026496,
|
||||
'volume': '', 'change': -5.59806916,
|
||||
},
|
||||
'timestamp': 1507470422,
|
||||
'success': True,
|
||||
'error': ""
|
||||
}
|
||||
out = feed._handle_response(response)
|
||||
expected = 23657.44026496
|
||||
self.assertEqual(expected, out)
|
||||
|
||||
response = {}
|
||||
})
|
||||
self.assertEqual(23_657.44026496, out)
|
||||
with self.assertRaises(InvalidExchangeRateResponseError):
|
||||
feed._handle_response(response)
|
||||
|
||||
response = {
|
||||
feed.get_rate_from_response({})
|
||||
with self.assertRaises(InvalidExchangeRateResponseError):
|
||||
feed.get_rate_from_response({
|
||||
"success": True,
|
||||
"ticker": {}
|
||||
}
|
||||
with self.assertRaises(InvalidExchangeRateResponseError):
|
||||
feed._handle_response(response)
|
||||
})
|
||||
|
||||
def test_handle_cryptonator_btc_response(self):
|
||||
feed = exchange_rate_manager.CryptonatorBTCFeed()
|
||||
|
||||
response = {
|
||||
def test_cryptonator_btc_feed_response(self):
|
||||
feed = CryptonatorBTCFeed()
|
||||
out = feed.get_rate_from_response({
|
||||
'ticker': {
|
||||
'base': 'BTC', 'target': 'LBC', 'price': 0.00022123, 'volume': '', 'change': -0.00000259,
|
||||
'base': 'BTC', 'target': 'LBC', 'price': 0.00022123,
|
||||
'volume': '', 'change': -0.00000259,
|
||||
},
|
||||
'timestamp': 1507471141,
|
||||
'success': True,
|
||||
'error': ''
|
||||
}
|
||||
|
||||
out = feed._handle_response(response)
|
||||
expected = 0.00022123
|
||||
self.assertEqual(expected, out)
|
||||
|
||||
response = '{}'
|
||||
})
|
||||
self.assertEqual(0.00022123, out)
|
||||
with self.assertRaises(InvalidExchangeRateResponseError):
|
||||
feed._handle_response(response)
|
||||
|
||||
response = {
|
||||
feed.get_rate_from_response({})
|
||||
with self.assertRaises(InvalidExchangeRateResponseError):
|
||||
feed.get_rate_from_response({
|
||||
"success": True,
|
||||
"ticker": {}
|
||||
}
|
||||
with self.assertRaises(InvalidExchangeRateResponseError):
|
||||
feed._handle_response(response)
|
||||
})
|
||||
|
||||
def test_handle_bittrex_response(self):
|
||||
feed = exchange_rate_manager.BittrexFeed()
|
||||
|
||||
response = {
|
||||
def test_bittrex_feed_response(self):
|
||||
feed = BittrexFeed()
|
||||
out = feed.get_rate_from_response({
|
||||
"success": True,
|
||||
"message": "",
|
||||
"result": [
|
||||
|
|
@ -213,102 +144,27 @@ class TestExchangeRateFeeds(unittest.TestCase):
|
|||
"Price": 0.00001592, "Total": 0.00686151, "FillType": "PARTIAL_FILL", "OrderType": "SELL"
|
||||
}
|
||||
]
|
||||
}
|
||||
out = feed._handle_response(response)
|
||||
expected = 1.0 / ((0.00090980+0.00686151) / (56.12611239+430.99988180))
|
||||
self.assertEqual(expected, out)
|
||||
|
||||
response = {}
|
||||
})
|
||||
self.assertEqual(1.0 / ((0.00090980+0.00686151) / (56.12611239+430.99988180)), out)
|
||||
with self.assertRaises(InvalidExchangeRateResponseError):
|
||||
feed._handle_response(response)
|
||||
|
||||
response = {
|
||||
feed.get_rate_from_response({})
|
||||
with self.assertRaises(InvalidExchangeRateResponseError):
|
||||
feed.get_rate_from_response({
|
||||
"success": True,
|
||||
"result": []
|
||||
}
|
||||
with self.assertRaises(InvalidExchangeRateResponseError):
|
||||
feed._handle_response(response)
|
||||
})
|
||||
|
||||
|
||||
class TestMarketFeed(AsyncioTestCase):
|
||||
def setUp(self):
|
||||
self.feed = exchange_rate_manager.MarketFeed('some market', 'some name', 'some url', {'param': 1}, 0.005)
|
||||
class BadMarketFeed(LBRYFeed):
|
||||
|
||||
def test_save_price(self):
|
||||
with self.assertLogs('lbry.extras.daemon.exchange_rate_manager', logging.DEBUG) as cm:
|
||||
self.feed._save_price(1)
|
||||
self.assertIn(self.feed.market, ' '.join(cm.output))
|
||||
self.assertIn(self.feed.name, ' '.join(cm.output))
|
||||
self.assertTrue(self.feed.is_online())
|
||||
self.assertIsNotNone(self.feed.rate)
|
||||
|
||||
with self.assertRaises(ValueError):
|
||||
self.feed._save_price(0)
|
||||
|
||||
with self.assertRaises(TypeError):
|
||||
self.feed._save_price('not a price')
|
||||
|
||||
async def test_update_price(self):
|
||||
def mock_handle_response(json_obj):
|
||||
return json_obj['data']['lbc_btc']
|
||||
|
||||
async def get_response_body_mock(self):
|
||||
return '{\"data\": {\"fresh\": 0, \"lbc_usd\": 0.05863062523378918, ' \
|
||||
'\"lbc_btc\": 5.065289549855739e-05, \"btc_usd\": 1157.498}, ' \
|
||||
'\"success\": true, \"error\": null}'
|
||||
|
||||
self.feed._handle_response = mock_handle_response
|
||||
|
||||
with unittest.mock.patch.object(
|
||||
exchange_rate_manager.AioHttpManager, 'get_response_body', get_response_body_mock
|
||||
):
|
||||
await self.feed._update_price()
|
||||
self.assertEqual(self.feed.rate.spot, 5.090743266186672e-05)
|
||||
self.assertTrue(self.feed.is_online())
|
||||
|
||||
async def get_response_body_mock(self):
|
||||
return '<h1>not a json</h1>'
|
||||
|
||||
with unittest.mock.patch.object(
|
||||
exchange_rate_manager.AioHttpManager, 'get_response_body', get_response_body_mock
|
||||
), self.assertRaises(ValueError):
|
||||
await self.feed._update_price()
|
||||
def get_response(self):
|
||||
raise InvalidExchangeRateResponseError(self.name, 'bad stuff')
|
||||
|
||||
|
||||
class TestDeserializer(unittest.TestCase):
|
||||
def test_valid_json(self):
|
||||
deserializer = exchange_rate_manager.Deserializer('json')
|
||||
body = '{"data": "valid json", "some_float": 3.1415, "and_a_dict": {"value": true}}'
|
||||
json_obj = deserializer.deserialize(body)
|
||||
self.assertEqual(json_obj['data'], 'valid json')
|
||||
self.assertEqual(json_obj['some_float'], 3.1415)
|
||||
self.assertTrue(json_obj['and_a_dict']['value'])
|
||||
class ExchangeRateManagerTests(AsyncioTestCase):
|
||||
|
||||
def test_invalid_json(self):
|
||||
def assert_raises_error(body):
|
||||
with self.assertRaises(ValueError):
|
||||
deserializer.deserialize(body)
|
||||
|
||||
deserializer = exchange_rate_manager.Deserializer('json')
|
||||
assert_raises_error('<h1>not a json</h1>')
|
||||
assert_raises_error('')
|
||||
assert_raises_error('{')
|
||||
|
||||
def test_invalid_content_type(self):
|
||||
with self.assertRaises(ValueError):
|
||||
exchange_rate_manager.Deserializer('not a format')
|
||||
|
||||
|
||||
class TestAioHttpManager(AsyncioTestCase):
|
||||
async def test_get_response_body(self):
|
||||
async def make_request_mock(self):
|
||||
response = unittest.mock.Mock(
|
||||
headers={'Content-Type': 'jibberish'}
|
||||
)
|
||||
return response
|
||||
|
||||
manager = exchange_rate_manager.AioHttpManager('some url', 'some params', 'json')
|
||||
with unittest.mock.patch.object(
|
||||
exchange_rate_manager.AioHttpManager, '_make_request', make_request_mock
|
||||
), self.assertRaises(InvalidExchangeRateResponseError):
|
||||
await manager.get_response_body()
|
||||
async def test_get_rate_failure_retrieved(self):
|
||||
manager = ExchangeRateManager([BadMarketFeed])
|
||||
manager.start()
|
||||
await asyncio.sleep(1)
|
||||
self.addCleanup(manager.stop)
|
||||
|
|
|
|||
|
|
@ -140,7 +140,7 @@ class TestStreamManager(BlobExchangeTestBase):
|
|||
AnalyticsManager(self.client_config,
|
||||
binascii.hexlify(generate_id()).decode(),
|
||||
binascii.hexlify(generate_id()).decode()))
|
||||
self.exchange_rate_manager = get_dummy_exchange_rate_manager(time)
|
||||
self.exchange_rate_manager = get_dummy_exchange_rate_manager()
|
||||
|
||||
async def _test_time_to_first_bytes(self, check_post, error=None, after_setup=None):
|
||||
await self.setup_stream_manager()
|
||||
|
|
|
|||
Loading…
Reference in a new issue