import { afterEach, beforeEach, describe, expect, it } from 'vitest';
import { validateConfig } from '../config.js';
describe('validateConfig', () => {
const originalEnv = process.env;
beforeEach(() => {
// Create a fresh copy of env for each test
process.env = { ...originalEnv };
});
afterEach(() => {
// Restore original env after each test
process.env = originalEnv;
});
it('should return valid config when all environment variables are set', () => {
process.env['SLACK_BOT_TOKEN'] = 'xoxb-test-token';
process.env['PORT'] = '8080';
const config = validateConfig();
expect(config).toEqual({
slackBotToken: 'xoxb-test-token',
port: 8080,
});
});
it('should use default port when PORT is not set', () => {
process.env['SLACK_BOT_TOKEN'] = 'xoxb-test-token';
delete process.env['PORT'];
const config = validateConfig();
expect(config).toEqual({
slackBotToken: 'xoxb-test-token',
port: 3000,
});
});
it('should trim whitespace from SLACK_BOT_TOKEN', () => {
process.env['SLACK_BOT_TOKEN'] = ' xoxb-test-token ';
const config = validateConfig();
expect(config.slackBotToken).toBe('xoxb-test-token');
});
it('should throw error when SLACK_BOT_TOKEN is missing', () => {
delete process.env['SLACK_BOT_TOKEN'];
expect(() => validateConfig()).toThrow(
'SLACK_BOT_TOKEN environment variable is required',
);
});
it('should throw error when SLACK_BOT_TOKEN is empty string', () => {
process.env['SLACK_BOT_TOKEN'] = '';
expect(() => validateConfig()).toThrow(
'SLACK_BOT_TOKEN environment variable is required',
);
});
it('should throw error when SLACK_BOT_TOKEN is only whitespace', () => {
process.env['SLACK_BOT_TOKEN'] = ' ';
expect(() => validateConfig()).toThrow(
'SLACK_BOT_TOKEN environment variable is required',
);
});
it('should parse PORT as integer', () => {
const CUSTOM_PORT = 9000;
process.env['SLACK_BOT_TOKEN'] = 'xoxb-test-token';
process.env['PORT'] = '9000';
const config = validateConfig();
expect(config.port).toBe(CUSTOM_PORT);
expect(typeof config.port).toBe('number');
});
});
