Testing Guide

Test Environment Setup

Prerequisites

Test Bot Setup
- Create a dedicated test bot via @BotFather
- Get test bot token
- Configure test bot settings
Test Infrastructure
- Create a test group/channel
- Add test bot as admin (for group tests)
- Set up test user accounts
Environment Configuration

# .env.test
TELEGRAM_BOT_TOKEN=test_bot_token_here
TELEGRAM_TEST_CHAT_ID=-1001234567890  # Test group ID
TELEGRAM_TEST_USER_ID=123456789        # Test user ID
TELEGRAM_TEST_CHANNEL_ID=@testchannel  # Test channel

# Optional test settings
TELEGRAM_API_ROOT=https://api.telegram.org  # Or test server
TELEGRAM_TEST_TIMEOUT=30000             # Test timeout in ms

Unit Testing

Testing Message Manager

import { describe, it, expect, beforeEach, vi } from 'vitest';
import { MessageManager } from '@elizaos/plugin-telegram';
import { Telegraf, Context } from 'telegraf';

describe('MessageManager', () => {
  let messageManager: MessageManager;
  let mockBot: Telegraf;
  let mockRuntime: any;
  
  beforeEach(() => {
    // Mock Telegraf bot
    mockBot = {
      telegram: {
        sendMessage: vi.fn(),
        editMessageText: vi.fn(),
        answerCallbackQuery: vi.fn()
      }
    } as any;
    
    // Mock runtime
    mockRuntime = {
      processMessage: vi.fn(),
      character: { name: 'TestBot' },
      logger: { info: vi.fn(), error: vi.fn() },
      getSetting: vi.fn()
    };
    
    messageManager = new MessageManager(mockBot, mockRuntime);
  });
  
  describe('handleMessage', () => {
    it('should process text messages', async () => {
      const mockContext = createMockContext({
        message: {
          text: 'Hello bot',
          from: { id: 123, username: 'testuser' },
          chat: { id: -456, type: 'group' }
        }
      });
      
      mockRuntime.processMessage.mockResolvedValue({
        text: 'Hello user!'
      });
      
      await messageManager.handleMessage(mockContext);
      
      expect(mockRuntime.processMessage).toHaveBeenCalledWith(
        expect.objectContaining({
          content: { text: 'Hello bot' },
          userId: expect.any(String),
          channelId: '-456'
        })
      );
    });
    
    it('should handle photo messages', async () => {
      const mockContext = createMockContext({
        message: {
          photo: [
            { file_id: 'photo_123', width: 100, height: 100 },
            { file_id: 'photo_456', width: 200, height: 200 }
          ],
          caption: 'Check this out',
          from: { id: 123 },
          chat: { id: 456 }
        }
      });
      
      mockBot.telegram.getFile = vi.fn().mockResolvedValue({
        file_path: 'photos/test.jpg'
      });
      
      await messageManager.handleMessage(mockContext);
      
      expect(mockBot.telegram.getFile).toHaveBeenCalledWith('photo_456');
      expect(mockRuntime.processMessage).toHaveBeenCalledWith(
        expect.objectContaining({
          content: expect.objectContaining({
            text: 'Check this out',
            attachments: expect.arrayContaining([
              expect.objectContaining({
                type: 'image'
              })
            ])
          })
        })
      );
    });
    
    it('should handle voice messages', async () => {
      const mockContext = createMockContext({
        message: {
          voice: {
            file_id: 'voice_123',
            duration: 5,
            mime_type: 'audio/ogg'
          },
          from: { id: 123 },
          chat: { id: 456 }
        }
      });
      
      // Mock transcription
      mockRuntime.transcribe = vi.fn().mockResolvedValue('Hello world');
      
      await messageManager.handleMessage(mockContext);
      
      expect(mockRuntime.processMessage).toHaveBeenCalledWith(
        expect.objectContaining({
          content: expect.objectContaining({
            text: 'Hello world'
          })
        })
      );
    });
  });
  
  describe('sendMessageToTelegram', () => {
    it('should send text messages', async () => {
      await messageManager.sendMessageToTelegram(
        123,
        { text: 'Test message' }
      );
      
      expect(mockBot.telegram.sendMessage).toHaveBeenCalledWith(
        123,
        'Test message',
        expect.any(Object)
      );
    });
    
    it('should send messages with buttons', async () => {
      await messageManager.sendMessageToTelegram(
        123,
        {
          text: 'Choose an option',
          buttons: [
            { text: 'Option 1', callback_data: 'opt1' },
            { text: 'Option 2', callback_data: 'opt2' }
          ]
        }
      );
      
      expect(mockBot.telegram.sendMessage).toHaveBeenCalledWith(
        123,
        'Choose an option',
        expect.objectContaining({
          reply_markup: expect.objectContaining({
            inline_keyboard: expect.any(Array)
          })
        })
      );
    });
  });
});

Testing Telegram Service

import { TelegramService } from '@elizaos/plugin-telegram';
import { AgentRuntime } from '@elizaos/core';

describe('TelegramService', () => {
  let service: TelegramService;
  let runtime: AgentRuntime;
  
  beforeEach(() => {
    runtime = createMockRuntime();
    service = new TelegramService(runtime);
  });
  
  describe('initialization', () => {
    it('should initialize with valid token', () => {
      runtime.getSetting.mockReturnValue('valid_token');
      
      const service = new TelegramService(runtime);
      
      expect(service.bot).toBeDefined();
      expect(service.messageManager).toBeDefined();
    });
    
    it('should handle missing token gracefully', () => {
      runtime.getSetting.mockReturnValue('');
      
      const service = new TelegramService(runtime);
      
      expect(service.bot).toBeNull();
      expect(service.messageManager).toBeNull();
    });
  });
  
  describe('chat synchronization', () => {
    it('should sync new chats', async () => {
      const mockContext = createMockContext({
        chat: {
          id: 123,
          type: 'group',
          title: 'Test Group'
        }
      });
      
      await service.syncChat(mockContext);
      
      expect(service.knownChats.has('123')).toBe(true);
      expect(runtime.emitEvent).toHaveBeenCalledWith(
        expect.arrayContaining(['WORLD_JOINED']),
        expect.any(Object)
      );
    });
  });
});

Testing Utilities

import { processMediaAttachments, createInlineKeyboard } from '@elizaos/plugin-telegram/utils';

describe('Utilities', () => {
  describe('processMediaAttachments', () => {
    it('should process photo attachments', async () => {
      const mockContext = createMockContext({
        message: {
          photo: [{ file_id: 'photo_123' }]
        }
      });
      
      const attachments = await processMediaAttachments(
        mockContext,
        mockBot,
        mockRuntime
      );
      
      expect(attachments).toHaveLength(1);
      expect(attachments[0].type).toBe('image');
    });
  });
  
  describe('createInlineKeyboard', () => {
    it('should create inline keyboard markup', () => {
      const buttons = [
        { text: 'Button 1', callback_data: 'btn1' },
        { text: 'Button 2', url: 'https://example.com' }
      ];
      
      const keyboard = createInlineKeyboard(buttons);
      
      expect(keyboard.inline_keyboard).toHaveLength(2);
      expect(keyboard.inline_keyboard[0][0]).toHaveProperty('callback_data');
      expect(keyboard.inline_keyboard[1][0]).toHaveProperty('url');
    });
  });
});

Integration Testing

Testing Bot Lifecycle

describe('Bot Lifecycle Integration', () => {
  let service: TelegramService;
  let runtime: AgentRuntime;
  
  beforeAll(async () => {
    runtime = new AgentRuntime({
      character: {
        name: 'TestBot',
        clients: ['telegram']
      },
      settings: {
        TELEGRAM_BOT_TOKEN: process.env.TELEGRAM_TEST_TOKEN
      }
    });
    
    service = await TelegramService.start(runtime);
  });
  
  afterAll(async () => {
    await service.stop();
  });
  
  it('should connect to Telegram', async () => {
    expect(service.bot).toBeDefined();
    const botInfo = await service.bot.telegram.getMe();
    expect(botInfo.is_bot).toBe(true);
  });
  
  it('should handle incoming messages', async () => {
    // Send test message
    const testMessage = await sendTestMessage(
      'Test message',
      process.env.TELEGRAM_TEST_CHAT_ID
    );
    
    // Wait for processing
    await waitForProcessing(1000);
    
    // Verify message was processed
    expect(runtime.processMessage).toHaveBeenCalled();
  });
});

Testing Message Flow

describe('Message Flow Integration', () => {
  it('should process message end-to-end', async () => {
    // Send message to test chat
    const response = await fetch(
      `https://api.telegram.org/bot${TEST_TOKEN}/sendMessage`,
      {
        method: 'POST',
        headers: { 'Content-Type': 'application/json' },
        body: JSON.stringify({
          chat_id: TEST_CHAT_ID,
          text: 'Hello bot!'
        })
      }
    );
    
    const result = await response.json();
    expect(result.ok).toBe(true);
    
    // Wait for bot response
    const botResponse = await waitForBotResponse(TEST_CHAT_ID, 5000);
    expect(botResponse).toBeDefined();
    expect(botResponse.text).toContain('Hello');
  });
  
  it('should handle button interactions', async () => {
    // Send message with buttons
    const message = await sendMessageWithButtons(
      'Choose:',
      [
        { text: 'Option 1', callback_data: 'opt1' },
        { text: 'Option 2', callback_data: 'opt2' }
      ]
    );
    
    // Simulate button click
    await simulateCallbackQuery(message.message_id, 'opt1');
    
    // Verify callback was processed
    const response = await waitForCallbackResponse();
    expect(response).toBeDefined();
  });
});

E2E Testing

Complete Test Suite

import { TelegramTestSuite } from '@elizaos/plugin-telegram/tests';

describe('Telegram Bot E2E Tests', () => {
  const suite = new TelegramTestSuite({
    botToken: process.env.TELEGRAM_TEST_TOKEN,
    testChatId: process.env.TELEGRAM_TEST_CHAT_ID,
    testUserId: process.env.TELEGRAM_TEST_USER_ID
  });
  
  beforeAll(async () => {
    await suite.setup();
  });
  
  afterAll(async () => {
    await suite.cleanup();
  });
  
  describe('Text Messages', () => {
    it('should respond to text messages', async () => {
      const result = await suite.testTextMessage({
        text: 'Hello!',
        expectedPattern: /hello|hi|hey/i
      });
      
      expect(result.success).toBe(true);
      expect(result.response).toMatch(/hello/i);
    });
    
    it('should handle mentions', async () => {
      const result = await suite.testMention({
        text: '@testbot how are you?',
        shouldRespond: true
      });
      
      expect(result.responded).toBe(true);
    });
  });
  
  describe('Media Handling', () => {
    it('should process images', async () => {
      const result = await suite.testImageMessage({
        imagePath: './test-assets/test-image.jpg',
        caption: 'What is this?'
      });
      
      expect(result.processed).toBe(true);
      expect(result.response).toContain('image');
    });
    
    it('should transcribe voice messages', async () => {
      const result = await suite.testVoiceMessage({
        audioPath: './test-assets/test-audio.ogg',
        expectedTranscript: 'hello world'
      });
      
      expect(result.transcribed).toBe(true);
      expect(result.transcript).toContain('hello');
    });
  });
  
  describe('Interactive Elements', () => {
    it('should handle button clicks', async () => {
      const result = await suite.testButtonInteraction({
        message: 'Choose:',
        buttons: [
          { text: 'Yes', callback_data: 'yes' },
          { text: 'No', callback_data: 'no' }
        ],
        clickButton: 'yes'
      });
      
      expect(result.callbackProcessed).toBe(true);
    });
  });
  
  describe('Group Features', () => {
    it('should work in groups', async () => {
      const result = await suite.testGroupMessage({
        groupId: process.env.TELEGRAM_TEST_GROUP_ID,
        message: 'Bot, help!',
        shouldRespond: true
      });
      
      expect(result.responded).toBe(true);
    });
  });
});

Performance Testing

Load Testing

describe('Performance Tests', () => {
  it('should handle concurrent messages', async () => {
    const messageCount = 50;
    const startTime = Date.now();
    
    const promises = Array(messageCount).fill(0).map((_, i) =>
      sendTestMessage(`Test message ${i}`, TEST_CHAT_ID)
    );
    
    const results = await Promise.all(promises);
    const endTime = Date.now();
    
    const totalTime = endTime - startTime;
    const avgTime = totalTime / messageCount;
    
    expect(results.every(r => r.ok)).toBe(true);
    expect(avgTime).toBeLessThan(500); // Less than 500ms per message
  });
  
  it('should maintain stable memory usage', async () => {
    const iterations = 100;
    const measurements = [];
    
    for (let i = 0; i < iterations; i++) {
      await processTestMessage(`Message ${i}`);
      
      if (i % 10 === 0) {
        global.gc(); // Force garbage collection
        measurements.push(process.memoryUsage().heapUsed);
      }
    }
    
    // Check memory growth
    const firstMeasurement = measurements[0];
    const lastMeasurement = measurements[measurements.length - 1];
    const growth = lastMeasurement - firstMeasurement;
    
    expect(growth).toBeLessThan(10 * 1024 * 1024); // Less than 10MB growth
  });
});

Rate Limit Testing

describe('Rate Limit Handling', () => {
  it('should handle rate limits gracefully', async () => {
    // Send many messages quickly
    const promises = Array(100).fill(0).map(() =>
      sendTestMessage('Spam test', TEST_CHAT_ID)
    );
    
    const results = await Promise.allSettled(promises);
    
    // Some should succeed, some might be rate limited
    const succeeded = results.filter(r => r.status === 'fulfilled');
    const failed = results.filter(r => r.status === 'rejected');
    
    // Should handle failures gracefully
    if (failed.length > 0) {
      expect(failed[0].reason).toMatch(/429|rate/i);
    }
    
    expect(succeeded.length).toBeGreaterThan(0);
  });
});

Mock Utilities

Telegram API Mocks

export function createMockContext(options: any = {}): Context {
  return {
    message: options.message || createMockMessage(),
    chat: options.chat || { id: 123, type: 'private' },
    from: options.from || { id: 456, username: 'testuser' },
    telegram: createMockTelegram(),
    reply: vi.fn(),
    replyWithHTML: vi.fn(),
    answerCbQuery: vi.fn(),
    editMessageText: vi.fn(),
    deleteMessage: vi.fn(),
    ...options
  } as any;
}

export function createMockMessage(options: any = {}) {
  return {
    message_id: options.message_id || 789,
    from: options.from || { id: 456, username: 'testuser' },
    chat: options.chat || { id: 123, type: 'private' },
    date: options.date || Date.now() / 1000,
    text: options.text,
    photo: options.photo,
    voice: options.voice,
    document: options.document,
    ...options
  };
}

export function createMockTelegram() {
  return {
    sendMessage: vi.fn().mockResolvedValue({ message_id: 999 }),
    editMessageText: vi.fn().mockResolvedValue(true),
    deleteMessage: vi.fn().mockResolvedValue(true),
    answerCallbackQuery: vi.fn().mockResolvedValue(true),
    getFile: vi.fn().mockResolvedValue({ file_path: 'test/path' }),
    getFileLink: vi.fn().mockResolvedValue('https://example.com/file'),
    setWebhook: vi.fn().mockResolvedValue(true),
    deleteWebhook: vi.fn().mockResolvedValue(true)
  };
}

Test Helpers

export async function sendTestMessage(
  text: string,
  chatId: string | number
): Promise<any> {
  const response = await fetch(
    `https://api.telegram.org/bot${TEST_TOKEN}/sendMessage`,
    {
      method: 'POST',
      headers: { 'Content-Type': 'application/json' },
      body: JSON.stringify({ chat_id: chatId, text })
    }
  );
  
  return response.json();
}

export async function waitForBotResponse(
  chatId: string | number,
  timeout = 5000
): Promise<any> {
  const startTime = Date.now();
  
  while (Date.now() - startTime < timeout) {
    const updates = await getUpdates();
    const botMessage = updates.find(u => 
      u.message?.from?.is_bot && 
      u.message?.chat?.id === chatId
    );
    
    if (botMessage) return botMessage.message;
    
    await sleep(100);
  }
  
  return null;
}

export async function simulateCallbackQuery(
  messageId: number,
  callbackData: string
): Promise<void> {
  // Simulate callback query update
  const update = {
    update_id: Date.now(),
    callback_query: {
      id: 'test_callback_' + Date.now(),
      from: { id: TEST_USER_ID, username: 'testuser' },
      message: { message_id: messageId },
      data: callbackData
    }
  };
  
  // Process through bot
  await bot.handleUpdate(update);
}

Debug Utilities

Enable Debug Logging

// Enable debug logging for tests
process.env.DEBUG = 'eliza:telegram:*';

// Custom test logger
export class TestLogger {
  private logs: Array<{
    level: string;
    message: string;
    data?: any;
    timestamp: Date;
  }> = [];
  
  log(level: string, message: string, data?: any) {
    this.logs.push({
      level,
      message,
      data,
      timestamp: new Date()
    });
    
    if (process.env.VERBOSE_TESTS) {
      console.log(`[${level}] ${message}`, data || '');
    }
  }
  
  getLogs(filter?: { level?: string; pattern?: RegExp }) {
    return this.logs.filter(log => {
      if (filter?.level && log.level !== filter.level) return false;
      if (filter?.pattern && !filter.pattern.test(log.message)) return false;
      return true;
    });
  }
  
  clear() {
    this.logs = [];
  }
}

Test Configuration

vitest.config.ts

import { defineConfig } from 'vitest/config';

export default defineConfig({
  test: {
    globals: true,
    environment: 'node',
    setupFiles: ['./tests/setup.ts'],
    testTimeout: 30000,
    hookTimeout: 30000,
    pool: 'forks', // Isolate tests
    coverage: {
      provider: 'v8',
      reporter: ['text', 'json', 'html'],
      exclude: [
        'node_modules',
        'tests',
        '**/*.test.ts',
        '**/types.ts'
      ]
    }
  }
});

Test Setup

// tests/setup.ts
import { config } from 'dotenv';
import { vi } from 'vitest';

// Load test environment
config({ path: '.env.test' });

// Validate test environment
if (!process.env.TELEGRAM_TEST_TOKEN) {
  throw new Error('TELEGRAM_TEST_TOKEN not set in .env.test');
}

// Global test utilities
global.createMockRuntime = () => ({
  processMessage: vi.fn(),
  character: { 
    name: 'TestBot',
    allowDirectMessages: true
  },
  logger: {
    info: vi.fn(),
    error: vi.fn(),
    warn: vi.fn(),
    debug: vi.fn()
  },
  getSetting: vi.fn((key) => process.env[key]),
  getService: vi.fn(),
  emitEvent: vi.fn()
});

// Cleanup after all tests
afterAll(async () => {
  // Clean up test messages
  await cleanupTestChat();
});

CI/CD Integration

GitHub Actions Workflow

name: Telegram Plugin Tests

on:
  push:
    paths:
      - 'packages/plugin-telegram/**'
  pull_request:
    paths:
      - 'packages/plugin-telegram/**'

jobs:
  test:
    runs-on: ubuntu-latest
    
    steps:
    - uses: actions/checkout@v3
    
    - name: Setup Node.js
      uses: actions/setup-node@v3
      with:
        node-version: 20
        
    - name: Install dependencies
      run: bun install
      
    - name: Run unit tests
      run: bun test packages/plugin-telegram --run
      env:
        TELEGRAM_TEST_TOKEN: ${{ secrets.TELEGRAM_TEST_TOKEN }}
        TELEGRAM_TEST_CHAT_ID: ${{ secrets.TELEGRAM_TEST_CHAT_ID }}
        
    - name: Run integration tests
      if: github.event_name == 'push'
      run: bun test:integration packages/plugin-telegram
      env:
        TELEGRAM_TEST_TOKEN: ${{ secrets.TELEGRAM_TEST_TOKEN }}
        TELEGRAM_TEST_CHAT_ID: ${{ secrets.TELEGRAM_TEST_CHAT_ID }}
        
    - name: Upload coverage
      uses: codecov/codecov-action@v3
      with:
        files: ./coverage/coverage-final.json
        flags: telegram-plugin

Best Practices

Test Isolation
- Use separate test bots and chats
- Clean up test data after tests
- Don’t interfere with production
Mock External Services
- Mock Telegram API for unit tests
- Use real API only for integration tests
- Mock file downloads and processing
Error Testing
- Test network failures
- Test API errors (rate limits, etc.)
- Test malformed data
Performance Monitoring
- Track message processing time
- Monitor memory usage
- Check for memory leaks
Security Testing
- Test input validation
- Test access control
- Test token handling

Getting Started

Core Plugins

LLM Providers

Platform Integrations

Test Environment Setup

Prerequisites

Unit Testing

Testing Message Manager

Testing Telegram Service

Testing Utilities

Integration Testing

Testing Bot Lifecycle

Testing Message Flow

E2E Testing

Complete Test Suite

Performance Testing

Load Testing

Rate Limit Testing

Mock Utilities

Telegram API Mocks

Test Helpers

Debug Utilities

Enable Debug Logging

Test Configuration

vitest.config.ts

Test Setup

CI/CD Integration

GitHub Actions Workflow

Best Practices

Getting Started

Core Plugins

LLM Providers

Platform Integrations

​Test Environment Setup

​Prerequisites

​Unit Testing

​Testing Message Manager

​Testing Telegram Service

​Testing Utilities

​Integration Testing

​Testing Bot Lifecycle

​Testing Message Flow

​E2E Testing

​Complete Test Suite

​Performance Testing

​Load Testing

​Rate Limit Testing

​Mock Utilities

​Telegram API Mocks

​Test Helpers

​Debug Utilities

​Enable Debug Logging

​Test Configuration

​vitest.config.ts

​Test Setup

​CI/CD Integration

​GitHub Actions Workflow

​Best Practices

Test Environment Setup

Prerequisites

Unit Testing

Testing Message Manager

Testing Telegram Service

Testing Utilities

Integration Testing

Testing Bot Lifecycle

Testing Message Flow

E2E Testing

Complete Test Suite

Performance Testing

Load Testing

Rate Limit Testing

Mock Utilities

Telegram API Mocks

Test Helpers

Debug Utilities

Enable Debug Logging

Test Configuration

vitest.config.ts

Test Setup

CI/CD Integration

GitHub Actions Workflow

Best Practices