def test_int_to_from_script_bytes(self):
for i in range(-127, 127):
self.assertEqual(IntStreamer.int_from_script_bytes(IntStreamer.int_to_script_bytes(i)), i)
for i in range(-1024, 1024, 16):
self.assertEqual(IntStreamer.int_from_script_bytes(IntStreamer.int_to_script_bytes(i)), i)
for i in range(-1024*1024, 1024*1024, 10000):
self.assertEqual(IntStreamer.int_from_script_bytes(IntStreamer.int_to_script_bytes(i)), i)
self.assertEqual(IntStreamer.int_to_script_bytes(1), b"\1")
self.assertEqual(IntStreamer.int_to_script_bytes(127), b"\x7f")
self.assertEqual(IntStreamer.int_to_script_bytes(128), b"\x80\x00")
def test_int_to_from_script_bytes(self):
for i in range(-127, 127):
self.assertEqual(IntStreamer.int_from_script_bytes(IntStreamer.int_to_script_bytes(i)), i)
for i in range(-1024, 1024, 16):
self.assertEqual(IntStreamer.int_from_script_bytes(IntStreamer.int_to_script_bytes(i)), i)
for i in range(-1024*1024, 1024*1024, 10000):
self.assertEqual(IntStreamer.int_from_script_bytes(IntStreamer.int_to_script_bytes(i)), i)
self.assertEqual(IntStreamer.int_to_script_bytes(1), b"\1")
self.assertEqual(IntStreamer.int_to_script_bytes(127), b"\x7f")
self.assertEqual(IntStreamer.int_to_script_bytes(128), b"\x80\x00")
class BitcoinVM(VM):
IntStreamer = IntStreamer
VM_FALSE = IntStreamer.int_to_script_bytes(0)
VM_TRUE = IntStreamer.int_to_script_bytes(1)
INSTRUCTION_LOOKUP = make_instruction_lookup(opcodes.OPCODE_LIST)
ScriptStreamer = BitcoinScriptStreamer
def pop_int(self):
return self.IntStreamer.int_from_script_bytes(self.pop(), require_minimal=self.flags & VERIFY_MINIMALDATA)
def pop_nonnegative(self):
v = self.pop_int()
if v < 0:
raise ScriptError("unexpectedly got negative value", errno.INVALID_STACK_OPERATION)
return v
def push_int(self, v):
self.append(self.IntStreamer.int_to_script_bytes(v))
@classmethod
def bool_from_script_bytes(class_, v, require_minimal=False):
v = class_.IntStreamer.int_from_script_bytes(v, require_minimal=require_minimal)
if require_minimal:
if v not in (class_.VM_FALSE, class_.VM_TRUE):
raise ScriptError("non-minimally encoded", errno.UNKNOWN_ERROR)
return bool(v)
@classmethod
def bool_to_script_bytes(class_, v):
return class_.VM_TRUE if v else class_.VM_FALSE
@classmethod
def generator_for_signature_type(class_, signature_type):
return secp256k1_generator
def test_val(n):
as_bytes = IntStreamer.int_to_script_bytes(n)
test_bytes(as_bytes)
def test_val(n):
as_bytes = IntStreamer.int_to_script_bytes(n)
test_bytes(as_bytes)
def make_opcode_const_list():
return [
("OP_%d" % i, IntStreamer.int_to_script_bytes(i)) for i in range(17)
] + [("OP_1NEGATE", IntStreamer.int_to_script_bytes(-1))]
def make_opcode_const_list():
return [("OP_%d" % i, IntStreamer.int_to_script_bytes(i)) for i in range(17)] + [
("OP_1NEGATE", IntStreamer.int_to_script_bytes(-1))]