def test_sign_operation(self):
op = Operation(OperationRev(), 'http://example.com/', [PublicKey.from_signing_key(SigningKey.generate())])
user = User.new_keys()
with self.assertRaisesRegex(Operation.VerifyError, "object is not signed"):
op.verify()
user.sign_object(op)
self.assertTrue(op.verify())
self.assertEqual(op.public_key, user._public_key)
class TestSingleOperation(TestCase):
def setUp(self):
self.private_key = SigningKey.generate(curve=NIST256p)
self.public_key = PublicKey.from_signing_key(self.private_key)
self.operation = Operation(OperationRev(), 'http://example.com/', [self.public_key])
sign_object(self.public_key, self.private_key, self.operation)
def test_fields(self):
self.assertEqual(self.operation.previous_operation_rev, OperationRev())
self.assertEqual(self.operation.address, 'http://example.com/')
self.assertEqual(self.operation.owners, (self.public_key,))
self.assertEqual(self.operation.public_key, self.public_key)
# noinspection PyPropertyAccess
def test_immutable(self):
with self.assertRaisesRegex(AttributeError, "can't set attribute"):
self.operation.previous_operation_rev = OperationRev()
with self.assertRaisesRegex(AttributeError, "can't set attribute"):
self.operation.uuid = uuid4()
with self.assertRaisesRegex(AttributeError, "can't set attribute"):
self.operation.address = 'http://changed.com/'
with self.assertRaisesRegex(AttributeError, "can't set attribute"):
self.operation.owners = []
def test_unsigned_raw(self):
unsigned_raw = self.operation.unsigned_raw()
self.assertIsInstance(unsigned_raw, bytes)
self.assertEqual(unsigned_raw[:36], b'\x00\x00\x00\x01' + b'\x00' * 32)
self.assertEqual(len(unsigned_raw),
4 + 32 + 16 + 4 + len('http://example.com/') + 4 +
4 + len(self.public_key.der))
def test_raw(self):
raw = self.operation.raw()
unsigned_raw = self.operation.unsigned_raw()
self.assertIsInstance(raw, bytes)
self.assertEqual(raw[:len(unsigned_raw)], self.operation.unsigned_raw())
self.assertEqual(len(raw), len(unsigned_raw) + 4 + len(self.public_key.der) + 4 + len(self.operation.signature))
def test_from_raw(self):
new_operation = Operation.from_raw(self.operation.raw())
self.assertIsInstance(new_operation, Operation)
for attr in ('previous_operation_rev', 'uuid', 'address', 'signature'):
self.assertEqual(getattr(new_operation, attr), getattr(self.operation, attr))
self.assertEqual(new_operation.owners_der, self.operation.owners_der)
self.assertEqual(new_operation.public_key.der, self.operation.public_key.der)
def test_verify(self):
self.assertTrue(self.operation.verify())
def test_mangled_raw(self):
raw = self.operation.raw()
with self.assertRaisesRegex(RawFormatError, "raw input too short"):
Operation.from_raw(raw[:-1])
with self.assertRaisesRegex(RawFormatError, "raw input too long"):
Operation.from_raw(raw + b'\x00')
with self.assertRaisesRegex(Operation.VerifyError, "wrong signature"):
mangled_raw = bytearray(raw)
mangled_raw[-1] = 0
Operation.from_raw(mangled_raw).verify()
with self.assertRaisesRegex(Operation.VerifyError, "wrong object id"):
Operation.from_raw(raw).verify_id(b'wrong hash') # wrong hash length
with self.assertRaisesRegex(Operation.VerifyError, "wrong object id"):
Operation.from_raw(raw).verify_id(sha256(b'wrong hash').digest()) # different hash
def test_owners(self):
self.operation = Operation(self.operation.previous_operation_rev,
self.operation.address,
[self.public_key, self.public_key])
sign_object(self.public_key, self.private_key, self.operation)
with self.assertRaisesRegex(Operation.VerifyError, "duplicated owners"):
self.operation.verify()
self.operation = Operation(self.operation.previous_operation_rev,
self.operation.address,
[])
sign_object(self.public_key, self.private_key, self.operation)
self.assertTrue(self.operation.verify())
