Arbitrum MCP Server

import { EthereumAccountClient } from '../src/clients/ethereum-account-client'; describe('EthereumAccountClient', () => { let client: EthereumAccountClient; // Test against real Arbitrum chains const testChains = [ { name: 'Arbitrum One', rpcUrl: 'https://arb1.arbitrum.io/rpc', // Well-known addresses with expected behavior knownAddresses: { contract: '0x82aF49447D8a07e3bd95BD0d56f35241523fBab1', // WETH contract on Arbitrum eoa: '0x000000000000000000000000000000000000dEaD', // Burn address (EOA) } } ]; describe.each(testChains)('$name', ({ rpcUrl, knownAddresses }) => { beforeEach(() => { client = new EthereumAccountClient(rpcUrl); }); describe('getBalance', () => { it('should return balance in wei for contract address', async () => { const result = await client.getBalance(knownAddresses.contract); expect(typeof result).toBe('string'); expect(result).toMatch(/^0x[0-9a-fA-F]+$/); }, 15000); it('should return balance in wei for EOA address', async () => { const result = await client.getBalance(knownAddresses.eoa); expect(typeof result).toBe('string'); expect(result).toMatch(/^0x[0-9a-fA-F]+$/); }, 15000); }); describe('getBalanceInEther', () => { it('should return balance in ETH format', async () => { const result = await client.getBalanceInEther(knownAddresses.contract); expect(typeof result).toBe('string'); expect(parseFloat(result)).toBeGreaterThanOrEqual(0); }, 15000); }); describe('getTransactionCount', () => { it('should return transaction count (nonce) for EOA', async () => { const result = await client.getTransactionCount(knownAddresses.eoa); expect(typeof result).toBe('number'); expect(result).toBeGreaterThanOrEqual(0); }, 15000); it('should return transaction count for contract', async () => { const result = await client.getTransactionCount(knownAddresses.contract); expect(typeof result).toBe('number'); expect(result).toBeGreaterThanOrEqual(0); }, 15000); }); describe('getCode', () => { it('should return contract code for contract address', async () => { const result = await client.getCode(knownAddresses.contract); expect(typeof result).toBe('string'); expect(result).toMatch(/^0x[0-9a-fA-F]+$/); expect(result.length).toBeGreaterThan(2); // More than just "0x" }, 15000); it('should return empty code for EOA address', async () => { const result = await client.getCode(knownAddresses.eoa); expect(result).toBe('0x'); }, 15000); }); describe('isContract', () => { it('should return true for contract addresses', async () => { const result = await client.isContract(knownAddresses.contract); expect(result).toBe(true); }, 15000); it('should return false for EOA addresses', async () => { const result = await client.isContract(knownAddresses.eoa); expect(result).toBe(false); }, 15000); }); }); // Additional error handling tests (not chain-specific) describe('error handling', () => { it('should throw error for invalid address format', async () => { const invalidClient = new EthereumAccountClient('https://arb1.arbitrum.io/rpc'); const invalidAddress = '0xinvalid'; await expect(invalidClient.getBalance(invalidAddress)).rejects.toThrow(); }, 10000); }); });