import { getRateLimitConfig } from '../rate-limit';
describe('getRateLimitConfig', () => {
const originalEnv = process.env;
beforeEach(() => {
process.env = { ...originalEnv };
delete process.env.DT_MCP_RATE_LIMIT_MAX_CALLS;
delete process.env.DT_MCP_RATE_LIMIT_WINDOW_MS;
});
afterEach(() => {
process.env = originalEnv;
});
it('returns defaults when no env vars are set', () => {
const config = getRateLimitConfig();
expect(config.maxCalls).toBe(20);
expect(config.windowMs).toBe(20000);
});
it('reads DT_MCP_RATE_LIMIT_MAX_CALLS from env', () => {
process.env.DT_MCP_RATE_LIMIT_MAX_CALLS = '50';
const config = getRateLimitConfig();
expect(config.maxCalls).toBe(50);
expect(config.windowMs).toBe(20000);
});
it('reads DT_MCP_RATE_LIMIT_WINDOW_MS from env', () => {
process.env.DT_MCP_RATE_LIMIT_WINDOW_MS = '30000';
const config = getRateLimitConfig();
expect(config.maxCalls).toBe(20);
expect(config.windowMs).toBe(30000);
});
it('reads both env vars when set', () => {
process.env.DT_MCP_RATE_LIMIT_MAX_CALLS = '100';
process.env.DT_MCP_RATE_LIMIT_WINDOW_MS = '60000';
const config = getRateLimitConfig();
expect(config.maxCalls).toBe(100);
expect(config.windowMs).toBe(60000);
});
});
