def test_various_methods(self):
self.assertEqual(Fixed8.FD(), Fixed8(100000000))
self.assertEqual(Fixed8.FD(), Fixed8.One())
sat = Fixed8.Satoshi()
self.assertEqual(sat, Fixed8(1))
self.assertEqual(sat.value, 1)
negsat = Fixed8.NegativeSatoshi()
self.assertEqual(negsat, Fixed8(-1))
self.assertEqual(negsat.value, -1)
zero = Fixed8.Zero()
self.assertEqual(zero, Fixed8(0))
self.assertEqual(zero.value, 0)
decimal = 1.2
f8 = Fixed8.FromDecimal(decimal)
self.assertEqual(f8.value, f8.GetData())
f8 = Fixed8.TryParse(123.123)
f8 = Fixed8.TryParse(123)
self.assertEqual(f8.Size(), 8)
zero = Fixed8.TryParse(0)
self.assertEqual(zero, Fixed8(0))
self.assertEqual(Fixed8.TryParse("foo"), None)
self.assertEqual(Fixed8.TryParse(-1, require_positive=True), None)
def Asset_Create(self, engine: ExecutionEngine):
tx = engine.ScriptContainer
asset_type = int(
engine.CurrentContext.EvaluationStack.Pop().GetBigInteger())
if asset_type not in AssetType.AllTypes() or \
asset_type == AssetType.CreditFlag or \
asset_type == AssetType.DutyFlag or \
asset_type == AssetType.GoverningToken or \
asset_type == AssetType.UtilityToken:
return False
if len(engine.CurrentContext.EvaluationStack.Peek().GetByteArray()
) > 1024:
return False
name = engine.CurrentContext.EvaluationStack.Pop().GetByteArray(
).decode('utf-8')
amount = Fixed8(
engine.CurrentContext.EvaluationStack.Pop().GetBigInteger())
if amount == Fixed8.Zero() or amount < Fixed8.NegativeSatoshi():
return False
if asset_type == AssetType.Invoice and amount != Fixed8.NegativeSatoshi(
):
return False
precision = int(
engine.CurrentContext.EvaluationStack.Pop().GetBigInteger())
if precision > 8:
return False
if asset_type == AssetType.Share and precision != 0:
return False
if amount != Fixed8.NegativeSatoshi() and amount.value % pow(
10, 8 - precision) != 0:
return False
ownerData = engine.CurrentContext.EvaluationStack.Pop().GetByteArray()
try:
owner = ECDSA.decode_secp256r1(ownerData, unhex=False).G
except ValueError:
return False
if owner.IsInfinity:
return False
if not self.CheckWitnessPubkey(engine, owner):
logger.error("check witness false...")
return False
admin = UInt160(
data=engine.CurrentContext.EvaluationStack.Pop().GetByteArray())
issuer = UInt160(
data=engine.CurrentContext.EvaluationStack.Pop().GetByteArray())
new_asset = AssetState(asset_id=tx.Hash,
asset_type=asset_type,
name=name,
amount=amount,
available=Fixed8.Zero(),
precision=precision,
fee_mode=0,
fee=Fixed8.Zero(),
fee_addr=UInt160(),
owner=owner,
admin=admin,
issuer=issuer,
expiration=Blockchain.Default().Height + 1 +
2000000,
is_frozen=False)
asset = self._assets.ReplaceOrAdd(tx.Hash.ToBytes(), new_asset)
# print("*****************************************************")
# print("CREATED ASSET %s " % tx.Hash.ToBytes())
# print("*****************************************************")
engine.CurrentContext.EvaluationStack.PushT(
StackItem.FromInterface(asset))
return True
