def test_estimate_tx_size(ins, outs, txtype, valid):
#TODO: this function should throw on invalid number of ins or outs
if valid:
assert btc.estimate_tx_size(ins, outs, txtype)== 10 + 147*ins + 34*outs
else:
with pytest.raises(NotImplementedError) as e_info:
btc.estimate_tx_size(ins, outs, txtype)
def test_estimate_tx_size(ins, outs, txtype, valid):
#TODO: this function should throw on invalid number of ins or outs
if valid:
assert btc.estimate_tx_size(ins, outs,
txtype) == 10 + 147 * ins + 34 * outs
else:
with pytest.raises(NotImplementedError) as e_info:
btc.estimate_tx_size(ins, outs, txtype)
def estimate_tx_fee(ins, outs, txtype='p2pkh'):
'''Returns an estimate of the number of satoshis required
for a transaction with the given number of inputs and outputs,
based on information from the blockchain interface.
'''
tx_estimated_bytes = btc.estimate_tx_size(ins, outs, txtype)
log.debug("Estimated transaction size: "+str(tx_estimated_bytes))
fee_per_kb = jm_single().bc_interface.estimate_fee_per_kb(
jm_single().config.getint("POLICY","tx_fees"))
log.debug("got estimated tx bytes: "+str(tx_estimated_bytes))
return int((tx_estimated_bytes * fee_per_kb)/Decimal(1000.0))
def estimate_tx_fee(ins, outs, txtype='p2pkh'):
'''Returns an estimate of the number of satoshis required
for a transaction with the given number of inputs and outputs,
based on information from the blockchain interface.
'''
tx_estimated_bytes = btc.estimate_tx_size(ins, outs, txtype)
log.debug("Estimated transaction size: "+str(tx_estimated_bytes))
fee_per_kb = jm_single().bc_interface.estimate_fee_per_kb(
jm_single().config.getint("POLICY", "tx_fees"))
absurd_fee = jm_single().config.getint("POLICY", "absurd_fee_per_kb")
if fee_per_kb > absurd_fee:
#This error is considered critical; for safety reasons, shut down.
raise ValueError("Estimated fee per kB greater than absurd value: " + \
str(absurd_fee) + ", quitting.")
log.debug("got estimated tx bytes: "+str(tx_estimated_bytes))
return int((tx_estimated_bytes * fee_per_kb)/Decimal(1000.0))
def estimate_tx_fee(ins, outs, txtype='p2pkh'):
'''Returns an estimate of the number of satoshis required
for a transaction with the given number of inputs and outputs,
based on information from the blockchain interface.
'''
tx_estimated_bytes = btc.estimate_tx_size(ins, outs, txtype)
log.debug("Estimated transaction size: "+str(tx_estimated_bytes))
fee_per_kb = jm_single().bc_interface.estimate_fee_per_kb(
jm_single().config.getint("POLICY", "tx_fees"))
absurd_fee = jm_single().config.getint("POLICY", "absurd_fee_per_kb")
if fee_per_kb > absurd_fee:
#This error is considered critical; for safety reasons, shut down.
raise ValueError("Estimated fee per kB greater than absurd value: " + \
str(absurd_fee) + ", quitting.")
log.debug("got estimated tx bytes: "+str(tx_estimated_bytes))
return int((tx_estimated_bytes * fee_per_kb)/Decimal(1000.0))
