def test_invalid_send(self):
"Balance is not deducted on transfer"
db = MockDatabase()
A2 = getWalletBlockWithBalance(10, db)
A3 = TestBlock(
block_type=BlockTypes.TRANSFER,
transaction={'balance': 10, 'amount':10},
previous = A2)
result, errors = A3.validate_transaction(db)
self.assertEqual(result, ValidationResult.invalid)
self.assertIsInstance(errors[0], EuroTokenTransferBlock.InvalidBalance)
def test_missing_amount(self):
"""
Test missing amount
"""
db = MockDatabase()
A2 = getWalletBlockWithBalance(10, db)
A3 = TestBlock(
block_type=BlockTypes.TRANSFER,
transaction={'balance': 0},
previous = A2)
result, errors = A3.validate_transaction(db)
self.assertEqual(result, ValidationResult.invalid)
self.assertIsInstance(errors[0], EuroTokenTransferBlock.MissingAmount)
def test_valid_send(self):
"""
Test Valid send after receiving
"""
db = MockDatabase()
A2 = getWalletBlockWithBalance(10, db)
A3 = TestBlock(
block_type=BlockTypes.TRANSFER,
transaction={'balance': 0, 'amount': 10},
previous = A2)
result, errors = A3.validate_transaction(db)
self.assertEqual(errors, [])
self.assertEqual(result, ValidationResult.valid)
def test_missing_payment_id_and_iban(self):
"""
Test Valid send after receiving
"""
db = MockDatabase()
A2 = getWalletBlockWithBalance(10, db)
A3 = TestBlock(block_type=BlockTypes.DESTRUCTION,
transaction={
'balance': 0,
'amount': 10
},
previous=A2)
result, errors = A3.validate_transaction(db)
self.assertEqual(result, ValidationResult.invalid)
self.assertIsInstance(errors[0],
EuroTokenDestructionBlock.MissingPaymentIDorIBAN)
def test_invalid_send(self):
"""
Test balance not deducted
"""
db = MockDatabase()
A2 = getWalletBlockWithBalance(10, db)
A3 = TestBlock(block_type=BlockTypes.DESTRUCTION,
transaction={
'balance': 10,
'amount': 10,
'payment_id': "ID"
},
previous=A2)
result, errors = A3.validate_transaction(db)
self.assertEqual(result, ValidationResult.invalid)
self.assertIsInstance(errors[0],
EuroTokenDestructionBlock.InvalidBalance)
def test_get_balance_receive_block_with_crawl(self):
db = MockDatabase()
A = TestWallet()
A1 = TestBlock(key=A,
block_type=BlockTypes.CHECKPOINT,
transaction={'balance': 0})
result, errors = A1.validate_transaction(db)
self.assertEqual(result, ValidationResult.valid)
self.assertEqual(errors, [])
db.add_block(A1)
B2 = getWalletBlockWithBalance(10, db)
B3 = TestBlock(block_type=BlockTypes.TRANSFER,
transaction={
'balance': 5,
'amount': 5
},
previous=B2,
links=A)
result, errors = B3.validate_transaction(db)
self.assertEqual(result, ValidationResult.valid)
self.assertEqual(errors, [])
db.add_block(B3)
A2 = TestBlock(block_type=BlockTypes.TRANSFER,
transaction={
'balance': 5,
'amount': 5
},
previous=A1,
linked=B3)
balance = A2.get_balance(db)
self.assertEqual(balance, 5)
def test_invalid_transaction_and_incorrect_rollback(self):
db = MockDatabase()
G = db.owner
A = TestWallet()
B = TestWallet()
# B receives money and does not verify
X2 = getWalletBlockWithBalance(10, db)
X3 = TestBlock(
block_type=BlockTypes.TRANSFER,
transaction={'amount': 5, 'balance': 5},
links = B,
previous=X2
)
result, errors = X3.validate_transaction(db)
self.assertEqual(errors, [])
self.assertEqual(result, ValidationResult.valid)
db.add_block(X3)
B1 = TestBlock(
key = B,
block_type=BlockTypes.TRANSFER,
transaction={'amount': 5, 'balance': 5},
linked = X3
)
result, errors = B1.validate_transaction(db)
self.assertEqual(errors, [])
self.assertEqual(result, ValidationResult.valid)
# db.add_block(B1) we dont have B1
# B sends the money to A and A accepts (A shouldn't have)
B2 = TestBlock(
block_type=BlockTypes.TRANSFER,
transaction={'amount': 5, 'balance': 0},
previous=B1,
links=A
)
result, errors = B2.validate_transaction(db)
self.assertEqual(result, ValidationResult.missing) #Note send is invalid
self.assertEqual(errors, [BlockRange(B1.public_key, B1.sequence_number, B1.sequence_number)])
db.add_block(B2) #added without crawl, because provided by A
A1 = TestBlock(
key = A,
block_type=BlockTypes.TRANSFER,
transaction={'amount': 5, 'balance': 0},
linked = B2
)
result, errors = A1.validate_transaction(db)
self.assertEqual(errors, [])
self.assertEqual(result, ValidationResult.valid)
db.add_block(A1)
# A tries to verify and fails
A2 = TestBlock(
block_type=BlockTypes.CHECKPOINT,
transaction={'balance': 5},
previous=A1,
links=G
)
result, errors = A2.validate_transaction(db)
self.assertEqual(result, ValidationResult.missing)
self.assertEqual(errors, [BlockRange(B1.public_key, B1.sequence_number, B1.sequence_number)])
db.add_block(A2)
# A adds an incorrect rollback block
A3 = TestBlock(
block_type=BlockTypes.ROLLBACK,
transaction={'balance': 1, 'amount': 4, 'transaction_hash': hexlify(A1.hash)},
previous=A2,
links=A
)
result, errors = A3.validate_transaction(db)
self.assertEqual(result, ValidationResult.invalid)
self.assertIsInstance(errors[0], EuroTokenBlock.InvalidRollback)
db.add_block(A3, True) # force in, this could happen if the linked block was missing at the time of arrival
# A tries to verify and fails
A4 = TestBlock(
block_type=BlockTypes.CHECKPOINT,
transaction={'balance': 1},
previous=A3,
links=G
)
result, errors = A4.validate_transaction(db)
self.assertEqual(result, ValidationResult.invalid)
self.assertIsInstance(errors[0], EuroTokenBlock.InvalidRollback)
def test_invalid_transaction_and_rollback(self):
db = MockDatabase()
G = db.owner
A = TestWallet()
B = TestWallet()
# B receives money and does not verify
X2 = getWalletBlockWithBalance(10, db)
X3 = TestBlock(
block_type=BlockTypes.TRANSFER,
transaction={'amount': 5, 'balance': 5},
links = B,
previous=X2
)
result, errors = X3.validate_transaction(db)
self.assertEqual(errors, [])
self.assertEqual(result, ValidationResult.valid)
db.add_block(X3)
B1 = TestBlock(
key = B,
block_type=BlockTypes.TRANSFER,
transaction={'amount': 5, 'balance': 5},
linked = X3
)
result, errors = B1.validate_transaction(db)
self.assertEqual(errors, [])
self.assertEqual(result, ValidationResult.valid)
# db.add_block(B1) #we dont have B1
# B sends the money to A and A accepts (A shouldn't have)
B2 = TestBlock(
block_type=BlockTypes.TRANSFER,
transaction={'amount': 5, 'balance': 0},
previous=B1,
links=A
)
result, errors = B2.validate_transaction(db)
self.assertEqual(result, ValidationResult.missing)
self.assertEqual(errors, [BlockRange(B1.public_key, B1.sequence_number, B1.sequence_number)])
db.add_block(B2)
A1 = TestBlock(
key = A,
block_type=BlockTypes.TRANSFER,
transaction={'amount': 5, 'balance': 0},
linked = B2
)
result, errors = A1.validate_transaction(db)
self.assertEqual(errors, [])
self.assertEqual(result, ValidationResult.valid)
db.add_block(A1)
# A tries to verify and fails
A2 = TestBlock(
block_type=BlockTypes.CHECKPOINT,
transaction={'balance': 5},
previous=A1,
links=G
)
result, errors = A2.validate_transaction(db)
self.assertEqual(result, ValidationResult.missing)
self.assertEqual(errors, [BlockRange(B1.public_key, B1.sequence_number, B1.sequence_number)])
db.add_block(A2)
# A adds a rollback block
A3 = TestBlock(
block_type=BlockTypes.ROLLBACK,
transaction={'balance': 0, 'amount': 5, 'transaction_hash': hexlify(A1.hash)},
previous=A2,
links=A
)
result, errors = A3.validate_transaction(db)
self.assertEqual(errors, [])
self.assertEqual(result, ValidationResult.valid)
db.add_block(A3)
# A tries to verify and succeeds
A4 = TestBlock(
block_type=BlockTypes.CHECKPOINT,
transaction={'balance': 0},
previous=A3,
links=G
)
result, errors = A4.validate_transaction(db)
self.assertEqual(errors, [])
self.assertEqual(result, ValidationResult.valid)
db.add_block(A4)
