Arbitrum MCP Server

import { ArbitrumChainClient } from "../src/clients/arbitrum-chain-client"; describe("ArbitrumChainClient", () => { let client: ArbitrumChainClient; // Test against different known Arbitrum chains const testChains = [ { name: "Arbitrum One", rpcUrl: "https://arb1.arbitrum.io/rpc", expectedArbOSVersion: "40", // Updated based on actual returned value }, { name: "Xai Network", rpcUrl: "https://xai-chain.net/rpc", expectedArbOSVersion: "32", // Updated based on actual returned value }, ]; describe.each(testChains)("$name", ({ rpcUrl, expectedArbOSVersion }) => { beforeEach(() => { client = new ArbitrumChainClient(rpcUrl); }); describe("getArbOSVersion", () => { it("should return the correct ArbOS version for this chain", async () => { const result = await client.getArbOSVersion(); // Verify we get the expected ArbOS version for this specific chain expect(result).toBe(expectedArbOSVersion); expect(typeof result).toBe("string"); }, 30000); // Increased timeout for real network calls }); describe("getLatestBlock", () => { it("should return latest block with valid data", async () => { const result = await client.getLatestBlock(); // Verify block structure and data types expect(result).toBeDefined(); expect(typeof result.number).toBe("string"); expect(result.number).toMatch(/^0x[0-9a-fA-F]+$/); expect(typeof result.hash).toBe("string"); expect(result.hash).toMatch(/^0x[0-9a-fA-F]{64}$/); expect(typeof result.timestamp).toBe("string"); expect(result.timestamp).toMatch(/^0x[0-9a-fA-F]+$/); expect(Array.isArray(result.transactions)).toBe(true); }, 30000); }); describe("getBlockByNumber", () => { it("should return specific block by number", async () => { // Get latest block first to ensure we have a valid block number const latestBlock = await client.getLatestBlock(); const latestBlockNum = parseInt(latestBlock.number, 16); // Get a block from a few blocks ago to ensure it exists const targetBlockNum = Math.max(1, latestBlockNum - 10); const result = await client.getBlockByNumber(targetBlockNum); expect(result).toBeDefined(); expect(parseInt(result.number, 16)).toBe(targetBlockNum); expect(typeof result.hash).toBe("string"); expect(result.hash).toMatch(/^0x[0-9a-fA-F]{64}$/); }, 30000); }); }); // Additional error handling tests (not chain-specific) describe("error handling", () => { it("should handle invalid RPC URL gracefully", async () => { const invalidClient = new ArbitrumChainClient("http://invalid-url:9999"); await expect(invalidClient.getLatestBlock()).rejects.toThrow(); }, 10000); }); });