import { describe, it, expect, vi, beforeEach, afterEach } from 'vitest';
vi.mock('dotenv', () => ({
default: {
config: vi.fn()
}
}));
describe('config', () => {
const originalEnv = process.env;
const originalExit = process.exit;
const originalConsoleError = console.error;
beforeEach(() => {
process.env = { ...originalEnv, ROLLBAR_ACCESS_TOKEN: 'test-token' };
delete process.env.ROLLBAR_API_BASE;
process.exit = vi.fn() as any;
console.error = vi.fn();
vi.resetModules();
});
afterEach(() => {
process.env = originalEnv;
process.exit = originalExit;
console.error = originalConsoleError;
vi.clearAllMocks();
});
it('should have correct API base URL', async () => {
const { ROLLBAR_API_BASE } = await import('../../src/config.js');
expect(ROLLBAR_API_BASE).toBe('https://api.rollbar.com/api/1');
});
it('should allow overriding API base URL via environment variable', async () => {
process.env.ROLLBAR_API_BASE = 'https://rollbar-dev.example.com/api/1/';
vi.resetModules();
const { ROLLBAR_API_BASE } = await import('../../src/config.js');
expect(ROLLBAR_API_BASE).toBe('https://rollbar-dev.example.com/api/1');
});
it('should have getUserAgent function that generates correct user agent string', async () => {
const { getUserAgent } = await import('../../src/config.js');
const packageJsonModule = await import('../../package.json', { with: { type: 'json' } });
const expectedVersion = packageJsonModule.default.version;
expect(getUserAgent('test-tool')).toBe(`rollbar-mcp-server/${expectedVersion} (tool: test-tool)`);
});
it('should load access token from environment', async () => {
process.env.ROLLBAR_ACCESS_TOKEN = 'custom-token';
const { ROLLBAR_ACCESS_TOKEN } = await import('../../src/config.js');
expect(ROLLBAR_ACCESS_TOKEN).toBe('custom-token');
});
it('should exit when ROLLBAR_ACCESS_TOKEN is missing', async () => {
delete process.env.ROLLBAR_ACCESS_TOKEN;
await import('../../src/config.js');
expect(console.error).toHaveBeenCalledWith(
'Error: ROLLBAR_ACCESS_TOKEN is not set in env var or .env file'
);
expect(process.exit).toHaveBeenCalledWith(1);
});
it('should exit when ROLLBAR_API_BASE is invalid', async () => {
process.env.ROLLBAR_API_BASE = 'not-a-valid-url';
vi.resetModules();
await import('../../src/config.js');
expect(console.error).toHaveBeenCalledWith(
'Error: ROLLBAR_API_BASE must be a valid HTTP(S) URL. Received "not-a-valid-url".'
);
expect(process.exit).toHaveBeenCalledWith(1);
});
it('should call dotenv.config() on module load', async () => {
const dotenv = await import('dotenv');
vi.clearAllMocks();
await import('../../src/config.js');
expect(dotenv.default.config).toHaveBeenCalled();
});
});
