# standard imports import logging import unittest # external imports from chainlib.eth.unittest.ethtester import EthTesterCase from chainlib.connection import RPCConnection from chainlib.eth.nonce import RPCNonceOracle from chainlib.eth.gas import OverrideGasOracle from chainlib.eth.tx import ( transaction, receipt, ) from chainlib.eth.address import to_checksum_address # local imports from giftable_erc20_token import GiftableToken from eth_erc20 import ERC20 logging.basicConfig(level=logging.DEBUG) logg = logging.getLogger(__name__) class TestToken(EthTesterCase): def setUp(self): super(TestToken, self).setUp() self.conn = RPCConnection.connect(self.chain_spec, 'default') nonce_oracle = RPCNonceOracle(self.accounts[0], conn=self.conn) c = GiftableToken(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle) self.symbol = 'FOO' self.name = 'Foo Token' self.decimals = 16 (tx_hash, o) = c.constructor(self.accounts[0], self.name, self.symbol, self.decimals) r = self.conn.do(o) logg.debug('deployed with hash {}'.format(r)) o = receipt(r) r = self.conn.do(o) self.address = to_checksum_address(r['contract_address']) self.initial_supply = 1 << 40 (tx_hash, o) = c.mint_to(self.address, self.accounts[0], self.accounts[0], self.initial_supply) r = self.conn.do(o) o = receipt(tx_hash) r = self.conn.do(o) self.assertEqual(r['status'], 1) def test_balance(self): c = ERC20(self.chain_spec) o = c.balance_of(self.address, self.accounts[0], sender_address=self.accounts[0]) r = self.conn.do(o) balance = ERC20.parse_balance(r) self.assertEqual(self.initial_supply, balance) def test_supply(self): c = ERC20(self.chain_spec) o = c.total_supply(self.address, sender_address=self.accounts[0]) r = self.conn.do(o) supply = ERC20.parse_total_supply(r) self.assertEqual(self.initial_supply, supply) def test_name(self): c = ERC20(self.chain_spec) o = c.name(self.address, sender_address=self.accounts[0]) r = self.conn.do(o) name = ERC20.parse_name(r) self.assertEqual(self.name, name) def test_symbol(self): c = ERC20(self.chain_spec) o = c.symbol(self.address, sender_address=self.accounts[0]) r = self.conn.do(o) symbol = ERC20.parse_symbol(r) self.assertEqual(self.symbol, symbol) def test_transfer(self): nonce_oracle = RPCNonceOracle(self.accounts[0], conn=self.conn) gas_oracle = OverrideGasOracle(limit=100000, conn=self.conn) c = ERC20(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle, gas_oracle=gas_oracle) (tx_hash, o) = c.transfer(self.address, self.accounts[0], self.accounts[1], 1000) r = self.rpc.do(o) o = receipt(tx_hash) r = self.rpc.do(o) self.assertEqual(r['status'], 1) o = c.balance_of(self.address, self.accounts[0], sender_address=self.accounts[0]) r = self.rpc.do(o) balance = c.parse_balance(r) self.assertEqual(balance, self.initial_supply - 1000) o = c.balance_of(self.address, self.accounts[1], sender_address=self.accounts[0]) r = self.rpc.do(o) balance = c.parse_balance(r) self.assertEqual(balance, 1000) o = transaction(tx_hash) r = self.rpc.do(o) data = c.parse_transfer_request(r['data']) self.assertEqual(data[0], self.accounts[1]) self.assertEqual(data[1], 1000) def test_transfer_from(self): nonce_oracle = RPCNonceOracle(self.accounts[0], conn=self.conn) gas_oracle = OverrideGasOracle(limit=100000, conn=self.conn) c = ERC20(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle, gas_oracle=gas_oracle) (tx_hash, o) = c.approve(self.address, self.accounts[0], self.accounts[1], 1000) r = self.rpc.do(o) o = receipt(tx_hash) r = self.rpc.do(o) self.assertEqual(r['status'], 1) o = c.allowance(self.address, self.accounts[0], self.accounts[1], sender_address=self.accounts[0]) r = self.rpc.do(o) allowance = c.parse_allowance(r) self.assertEqual(allowance, 1000) o = transaction(tx_hash) r = self.rpc.do(o) data = c.parse_approve_request(r['data']) self.assertEqual(data[0], self.accounts[1]) self.assertEqual(data[1], 1000) nonce_oracle = RPCNonceOracle(self.accounts[1], conn=self.conn) c = ERC20(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle, gas_oracle=gas_oracle) (tx_hash, o) = c.transfer_from(self.address, self.accounts[1], self.accounts[0], self.accounts[2], 1001) r = self.rpc.do(o) o = receipt(tx_hash) r = self.rpc.do(o) self.assertEqual(r['status'], 0) o = transaction(tx_hash) r = self.rpc.do(o) data = c.parse_transfer_from_request(r['data']) self.assertEqual(data[0], self.accounts[0]) self.assertEqual(data[1], self.accounts[2]) self.assertEqual(data[2], 1001) (tx_hash, o) = c.transfer_from(self.address, self.accounts[1], self.accounts[0], self.accounts[2], 1000) r = self.rpc.do(o) o = receipt(tx_hash) r = self.rpc.do(o) self.assertEqual(r['status'], 1) o = c.balance_of(self.address, self.accounts[0], sender_address=self.accounts[0]) r = self.rpc.do(o) balance = c.parse_balance(r) self.assertEqual(balance, self.initial_supply - 1000) o = c.balance_of(self.address, self.accounts[2], sender_address=self.accounts[0]) r = self.rpc.do(o) balance = c.parse_balance(r) self.assertEqual(balance, 1000) def test_revoke_approve(self): nonce_oracle = RPCNonceOracle(self.accounts[0], conn=self.conn) gas_oracle = OverrideGasOracle(limit=100000, conn=self.conn) c = ERC20(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle, gas_oracle=gas_oracle) (tx_hash, o) = c.approve(self.address, self.accounts[0], self.accounts[1], 1000) r = self.rpc.do(o) o = receipt(tx_hash) r = self.rpc.do(o) self.assertEqual(r['status'], 1) (tx_hash, o) = c.approve(self.address, self.accounts[0], self.accounts[1], 999) r = self.rpc.do(o) o = receipt(tx_hash) r = self.rpc.do(o) self.assertEqual(r['status'], 0) (tx_hash, o) = c.approve(self.address, self.accounts[0], self.accounts[1], 0) r = self.rpc.do(o) o = receipt(tx_hash) r = self.rpc.do(o) self.assertEqual(r['status'], 1) o = c.allowance(self.address, self.accounts[0], self.accounts[1], sender_address=self.accounts[0]) r = self.rpc.do(o) allowance = c.parse_allowance(r) self.assertEqual(allowance, 0) nonce_oracle = RPCNonceOracle(self.accounts[1], conn=self.conn) c = ERC20(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle, gas_oracle=gas_oracle) (tx_hash, o) = c.transfer_from(self.address, self.accounts[1], self.accounts[0], self.accounts[2], 1) r = self.rpc.do(o) o = receipt(tx_hash) r = self.rpc.do(o) self.assertEqual(r['status'], 0) if __name__ == '__main__': unittest.main()