def source_fee(self):
claim = self.protobuf
if not CLAIM_TYPE_NAMES[claim.claimType] == "stream":
return None
if claim.stream.metadata.HasField("fee"):
return Fee.load_protobuf(claim.stream.metadata.fee)
return None
def check_fee_and_convert(self, fee):
from_currency = self.max_key_fee['currency']
to_currency = 'LBC'
amount = self.max_key_fee['amount']
convert_fee = self.exchange_rate_manager.convert_currency
max_key_fee_amount = convert_fee(from_currency,
to_currency,
amount)
converted_fee_amount = convert_fee(fee.currency,
to_currency,
fee.amount)
if converted_fee_amount > (yield f2d(self.wallet.default_account.get_balance())):
raise InsufficientFundsError(f"Unable to pay the key fee of "
f"{converted_fee_amount}")
if converted_fee_amount > max_key_fee_amount and amount >= 0:
raise KeyFeeAboveMaxAllowed(f"Key fee {converted_fee_amount} above "
f"max allowed {max_key_fee_amount}")
converted_fee = {
'currency': 'LBC',
'amount': converted_fee_amount,
'address': fee.address
}
return Fee(converted_fee)
def test_fee_zero(self):
fee_dict = {
'currency': 'LBC',
'amount': 0.0,
'address': "bRcHraa8bYJZL7vkh5sNmGwPDERFUjGPP9"
}
fee = Fee(fee_dict)
self.assertEqual(0.0, fee['amount'])
self.assertEqual('LBC', fee['currency'])
def test_fee_created_with_correct_inputs(self):
fee_dict = {
'currency': 'USD',
'amount': 10.0,
'address': "bRcHraa8bYJZL7vkh5sNmGwPDERFUjGPP9"
}
fee = Fee(fee_dict)
self.assertEqual(10.0, fee['amount'])
self.assertEqual('USD', fee['currency'])
def test_missing_feed(self):
# test when a feed is missing for conversion
fee = Fee({
'currency':'USD',
'amount': 1.0,
'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.convert_currency(fee.currency, "LBC", fee.amount)
def test_fee_converts_to_lbc(self):
fee = Fee({
'currency': 'USD',
'amount': 10.0,
'address': "bRcHraa8bYJZL7vkh5sNmGwPDERFUjGPP9"
})
rates = {
'BTCLBC': {'spot': 3.0, 'ts': test_utils.DEFAULT_ISO_TIME + 1},
'USDBTC': {'spot': 2.0, 'ts': test_utils.DEFAULT_ISO_TIME + 2}
}
market_feeds = [BTCLBCFeed(), USDBTCFeed()]
manager = DummyExchangeRateManager(market_feeds, rates)
result = manager.convert_currency(fee.currency, "LBC", fee.amount)
self.assertEqual(60.0, result)
def check_fee_and_convert(self, fee):
max_key_fee_amount = self.convert_max_fee()
converted_fee_amount = self.exchange_rate_manager.convert_currency(
fee.currency, "LBC", fee.amount)
if converted_fee_amount > (yield f2d(
self.wallet.default_account.get_balance())):
raise InsufficientFundsError('Unable to pay the key fee of %s' %
converted_fee_amount)
if converted_fee_amount > max_key_fee_amount and not self.disable_max_key_fee:
raise KeyFeeAboveMaxAllowed(
'Key fee {} above max allowed {}'.format(
converted_fee_amount, max_key_fee_amount))
converted_fee = {
'currency': 'LBC',
'amount': converted_fee_amount,
'address': fee.address
}
return Fee(converted_fee)