test_bridge.py

import pytest
from web3 import Web3
import json
import time

# Load environment variables
ETHEREUM_RPC_URL = 'https://mainnet.infura.io/v3/YOUR_INFURA_PROJECT_ID'
BSC_RPC_URL = 'https://bsc-dataseed.binance.org/'
ETHEREUM_CONTRACT_ADDRESS = '0xYourEthereumContractAddress'
BSC_CONTRACT_ADDRESS = '0xYourBSCContractAddress'
TOKEN_ADDRESS = '0xYourTokenAddress'  # Replace with your ERC20 token address

# Connect to Ethereum and BSC
eth_web3 = Web3(Web3.HTTPProvider(ETHEREUM_RPC_URL))
bsc_web3 = Web3(Web3.HTTPProvider(BSC_RPC_URL))

# Load the contract ABI
with open('EthereumBridgeDAO.json', 'r') as f:
    eth_contract_data = json.load(f)

with open('BSCBridgeDAO.json', 'r') as f:
    bsc_contract_data = json.load(f)

# Create contract instances
eth_contract = eth_web3.eth.contract(address=ETHEREUM_CONTRACT_ADDRESS, abi=eth_contract_data['abi'])
bsc_contract = bsc_web3.eth.contract(address=BSC_CONTRACT_ADDRESS, abi=bsc_contract_data['abi'])

# Test data
user_address = '0xYourTestUser Address'  # Replace with a test user address
admin_address = '0xYourBSCAdminAddress'  # Replace with admin address
amount_to_lock = 100  # Amount to lock for testing

@pytest.fixture(scope="module")
def setup():
    # Ensure the user has enough tokens for testing
    # This should be done in a real test environment
    # For example, transfer tokens to the user address
    # eth_web3.eth.sendTransaction({'to': user_address, 'value': eth_web3.toWei(1, 'ether')})
    yield
    # Teardown actions can be added here if needed

def test_lock_tokens(setup):
    # Simulate locking tokens
    tx_hash = eth_contract.functions.lockTokens(amount_to_lock, "BSC").transact({'from': user_address})
    tx_receipt = eth_web3.eth.waitForTransactionReceipt(tx_hash)

    # Check if the TokensLocked event was emitted
    event_filter = eth_contract.events.TokensLocked.createFilter(fromBlock='latest')
    events = event_filter.get_new_entries()
    assert any(event['args']['user'] == user_address and event['args']['amount'] == amount_to_lock for event in events), "TokensLocked event not emitted correctly"

def test_unlock_tokens(setup):
    # Simulate unlocking tokens
    tx_hash = bsc_contract.functions.unlockTokens(user_address, amount_to_lock).transact({'from': admin_address})
    tx_receipt = bsc_web3.eth.waitForTransactionReceipt(tx_hash)

    # Check if the TokensUnlocked event was emitted
    event_filter = bsc_contract.events.TokensUnlocked.createFilter(fromBlock='latest')
    events = event_filter.get_new_entries()
    assert any(event['args']['user'] == user_address and event['args']['amount'] == amount_to_lock for event in events), "TokensUnlocked event not emitted correctly"

def test_balance_after_unlock():
    # Check the balance of the user after unlocking tokens
    # Replace with the appropriate token balance check
    user_balance = bsc_web3.eth.getBalance(user_address)  # This should be the token balance check
    assert user_balance >= amount_to_lock, "User  balance is not updated correctly after unlocking tokens"

def test_event_ordering():
    # Ensure that events are emitted in the correct order
    # This is a placeholder for more complex event ordering tests
    pass

if __name__ == '__main__':
    pytest.main()