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import os | ||
import time | ||
import math | ||
import psutil | ||
import signal | ||
import unittest | ||
import subprocess | ||
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from src.utils import get_contract, get_account, get_provider, get_env_variable | ||
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WETH_ADDRESS = "0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2" | ||
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class TestMint(unittest.TestCase): | ||
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def setUp(self): | ||
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if os.getenv('GITHUB_ACTIONS') == 'true': | ||
print('Running within GitHub Actions') | ||
API_KEY = os.getenv('INFURA_KEY') | ||
else: | ||
print('Not running within GitHub Actions') | ||
API_KEY = get_env_variable("MAINNET_PROVIDER") | ||
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# spin up Ethereum node | ||
self.node_process = subprocess.Popen(["npx", "hardhat", "node", "--fork", API_KEY]) | ||
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if self.node_process.returncode == None: | ||
print("Hardhat fork started successfully") | ||
else: | ||
print(f"Error starting Hardhat fork. Exit code: {self.node_process.returncode}") | ||
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time.sleep(10) | ||
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self.w3 = get_provider(test=True) | ||
self.account = get_account(test=True) | ||
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self.pool_contract = get_contract("USDC_ETH_POOL", test=True) | ||
self.router_contract = get_contract("UNISWAP_ROUTER", test=True) | ||
self.nft_contract = get_contract("NFT_POSITION_MANAGER", test=True) | ||
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self.token0_address = self.pool_contract.functions.token0().call() | ||
self.token1_address = self.pool_contract.functions.token1().call() | ||
self.fee = self.pool_contract.functions.fee().call() | ||
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self.token0_contract = get_contract("token0", self.token0_address, test=True) | ||
self.token1_contract = get_contract("token1", self.token1_address, test=True) | ||
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self.token0_decimals = self.token0_contract.functions.decimals().call() | ||
self.token1_decimals = self.token1_contract.functions.decimals().call() | ||
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def tearDown(self): | ||
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# stop Ethereum node | ||
node_process_pid = self.node_process.pid | ||
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parent_process = psutil.Process(node_process_pid) | ||
child_processes = parent_process.children(recursive=True) | ||
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self.node_process.terminate() | ||
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# kill all child processes | ||
for child in child_processes: | ||
if parent_process.pid != child.pid: | ||
os.kill(child.pid, signal.SIGTERM) | ||
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def testMintPositionOnlyToken0(self): | ||
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balance_token0 = self.token0_contract.functions.balanceOf(self.account.address).call() | ||
balance_token1 = self.token1_contract.functions.balanceOf(self.account.address).call() | ||
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self.assertEqual(balance_token0, 0) | ||
self.assertEqual(balance_token1, 0) | ||
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if self.token0_address == WETH_ADDRESS: | ||
self._wrap_token(self.token0_contract, 10**18) | ||
else: | ||
self._swap(WETH_ADDRESS, self.token0_address, 10**18, True) | ||
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balance_token0 = self.token0_contract.functions.balanceOf(self.account.address).call() | ||
balance_token1 = self.token1_contract.functions.balanceOf(self.account.address).call() | ||
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self.assertEqual(balance_token1, 0) | ||
self.assertGreater(balance_token0, 0) | ||
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def testMintPositionOnlyToken1(self): | ||
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balance_token0 = self.token0_contract.functions.balanceOf(self.account.address).call() | ||
balance_token1 = self.token1_contract.functions.balanceOf(self.account.address).call() | ||
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self.assertEqual(balance_token0, 0) | ||
self.assertEqual(balance_token1, 0) | ||
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if self.token1_address == WETH_ADDRESS: | ||
self._wrap_token(self.token1_contract, 10**18) | ||
else: | ||
self._swap(WETH_ADDRESS, self.token1_address, 10**18, True) | ||
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balance_token0 = self.token0_contract.functions.balanceOf(self.account.address).call() | ||
balance_token1 = self.token1_contract.functions.balanceOf(self.account.address).call() | ||
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self.assertEqual(balance_token0, 0) | ||
self.assertGreater(balance_token1, 0) | ||
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def _swap(self, token_in, token_out, swap_token_amount, eth) -> None: | ||
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swap_token_tx = self.router_contract.functions.exactInputSingle(( | ||
token_in, | ||
token_out, | ||
self.fee, | ||
self.account.address, | ||
int(time.time()) + 10 * 60, | ||
int(swap_token_amount), | ||
0, | ||
0 | ||
)).build_transaction({ | ||
'from': self.account.address, | ||
'gas': 500000, | ||
'nonce': self.w3.eth.get_transaction_count(self.account.address), | ||
'value': swap_token_amount if eth else 0 | ||
}) | ||
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txn_hash, _ = self._sign_and_broadcast_transaction(swap_token_tx) | ||
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return | ||
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def _wrap_token(self, token_contract, amount) -> None: | ||
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wrap_token_tx = token_contract.functions.deposit().build_transaction({ | ||
'from': self.account.address, | ||
'gas': 500000, | ||
'nonce': self.w3.eth.get_transaction_count(self.account.address), | ||
'value': amount | ||
}) | ||
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txn_hash, _ = self._sign_and_broadcast_transaction(wrap_token_tx) | ||
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return | ||
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def _sign_and_broadcast_transaction(self, transaction): | ||
# Sign the transaction | ||
signed_txn = self.w3.eth.account.sign_transaction(transaction, self.account.key) | ||
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# Send the transaction | ||
txn_hash = self.w3.eth.send_raw_transaction(signed_txn.rawTransaction) | ||
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# Wait for the transaction to be mined | ||
txn_receipt = self.w3.eth.wait_for_transaction_receipt(txn_hash) | ||
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return txn_hash, txn_receipt |