error_handling.test.ts•2.78 kB
import { describe, it, expect, beforeAll, afterAll } from 'bun:test';
import { Client } from '@modelcontextprotocol/sdk/client/index.js';
import { StdioClientTransport } from '@modelcontextprotocol/sdk/client/stdio.js';
import { ClientCapabilities, CallToolResultSchema } from '@modelcontextprotocol/sdk/types.js';
import path from 'path';
import fs from 'fs/promises';
import { fileURLToPath } from 'url';
import { getTextContent } from '../../utils/regexUtils.js';
const clientInfo = { name: 'regex-search-error-test-suite', version: '0.1.0' };
const clientCapabilities: ClientCapabilities = { toolUse: { enabled: true } };
const __dirname = path.dirname(fileURLToPath(import.meta.url));
const serverRoot = path.resolve(__dirname, '../../fs_root');
const serverCommand = 'bun';
const serverArgs = ['dist/index.js', serverRoot, '--full-access'];
const testBasePath = 'regex_search_content_errors/';
const nonExistentPath = 'regex_search_content_nonexistent/';
describe('test-filesystem::regex_search_content - Error Handling', () => {
let client: Client;
let transport: StdioClientTransport;
beforeAll(async () => {
await fs.mkdir(serverRoot, { recursive: true });
transport = new StdioClientTransport({ command: serverCommand, args: serverArgs });
client = new Client(clientInfo, { capabilities: clientCapabilities });
await client.connect(transport);
await client.callTool({ name: 'create_directory', arguments: { path: testBasePath } });
await client.callTool({ name: 'create_file', arguments: { path: `${testBasePath}a_file.txt`, content: 'content' } });
});
afterAll(async () => {
await client.callTool({ name: 'delete_directory', arguments: { path: testBasePath, recursive: true } });
await transport.close();
});
it('returns error for invalid regex', async () => {
const res = await client.callTool({ name: 'regex_search_content', arguments: { path: testBasePath, regex: '[invalid' } }, CallToolResultSchema);
expect(res.isError).toBe(true);
expect(getTextContent(res)).toMatch(/Invalid regex pattern/);
});
it('returns no matches for non-existent path', async () => {
const res = await client.callTool({ name: 'regex_search_content', arguments: { path: nonExistentPath, regex: 'x' } }, CallToolResultSchema);
expect(res.isError).not.toBe(true);
expect(getTextContent(res)).toBe('No matches found for the given regex pattern.');
});
it('returns no matches when path is a file', async () => {
const res = await client.callTool({ name: 'regex_search_content', arguments: { path: `${testBasePath}a_file.txt`, regex: 'x' } }, CallToolResultSchema);
expect(res.isError).not.toBe(true);
expect(getTextContent(res)).toBe('No matches found for the given regex pattern.');
});
});