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feat: add e2e tests with Letta Cloud (#149)

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E2E testing infrastructure that tests the full message flow against a real Letta Cloud agent.

Changes:
- Add MockChannelAdapter for simulating inbound/outbound messages
- Add e2e/bot.e2e.test.ts with 4 e2e tests:
  - Simple message/response
  - /status command
  - /help command
  - Conversation context retention
- Add 'mock' to ChannelId type
- Update CI workflow with separate e2e job (uses secrets)
- Add npm run test:e2e script

E2E tests require:
- LETTA_API_KEY (already in repo secrets)
- LETTA_E2E_AGENT_ID (needs to be added)

E2E tests are skipped locally without these env vars.

Written by Cameron ◯ Letta Code

"Trust, but verify." - Ronald Reagan (on e2e testing)
This commit is contained in:
Cameron
2026-02-04 17:51:23 -08:00
committed by GitHub
parent 1113631252
commit fe233b2f8f
12 changed files with 572 additions and 16 deletions
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30
.github/workflows/test.yml vendored
View File

@@ -7,7 +7,8 @@ on:
branches: [main]
jobs:
test:
unit:
name: Unit Tests
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v4
@@ -23,5 +24,30 @@ jobs:
- name: Build
run: npm run build
- name: Run tests
- name: Run unit tests
run: npm run test:run
e2e:
name: E2E Tests
runs-on: ubuntu-latest
# Only run e2e on main branch (has secrets)
if: github.ref == 'refs/heads/main' || github.event_name == 'push'
steps:
- uses: actions/checkout@v4
- uses: actions/setup-node@v4
with:
node-version: '20'
cache: 'npm'
- name: Install dependencies
run: npm ci
- name: Build
run: npm run build
- name: Run e2e tests
run: npm run test:e2e
env:
LETTA_API_KEY: ${{ secrets.LETTA_API_KEY }}
LETTA_E2E_AGENT_ID: ${{ secrets.LETTA_E2E_AGENT_ID }}

2
README.md
View File

@@ -108,7 +108,7 @@ LettaBot can transcribe voice messages using OpenAI Whisper. Voice messages are
### Configuration
Add your OpenAI API key to `lettabot.config.yaml`:
Add your OpenAI API key to `lettabot.yaml`:
```yaml
transcription:

4
SKILL.md
View File

@@ -178,7 +178,7 @@ Each channel supports three DM policies:
## Configuration File
After onboarding, config is saved to `~/.config/lettabot/config.yaml`:
After onboarding, config is saved to `~/.lettabot/config.yaml`:
```yaml
server:
@@ -296,7 +296,7 @@ If an AI agent is helping with setup and WhatsApp is configured:
The agent can verify success by checking:
- `lettabot server` output shows "Connected to Telegram" (or other channel)
- Config file exists at `~/.config/lettabot/config.yaml`
- Config file exists at `~/.lettabot/config.yaml`
- User can message bot on configured channel(s)
## Self-Hosted Letta

92
e2e/bot.e2e.test.ts Normal file
View File

@@ -0,0 +1,92 @@
/**
* E2E Tests for LettaBot
*
* These tests use a real Letta Cloud agent to verify the full message flow.
* Requires LETTA_API_KEY and LETTA_E2E_AGENT_ID environment variables.
*
* Run with: npm run test:e2e
*/
import { describe, it, expect, beforeAll, afterAll } from 'vitest';
import { LettaBot } from '../src/core/bot.js';
import { MockChannelAdapter } from '../src/test/mock-channel.js';
import { mkdtempSync, rmSync } from 'node:fs';
import { tmpdir } from 'node:os';
import { join } from 'node:path';
// Skip if no API key (local dev without secrets)
const SKIP_E2E = !process.env.LETTA_API_KEY || !process.env.LETTA_E2E_AGENT_ID;
describe.skipIf(SKIP_E2E)('e2e: LettaBot with Letta Cloud', () => {
let bot: LettaBot;
let mockAdapter: MockChannelAdapter;
let tempDir: string;
beforeAll(async () => {
// Create temp directory for test data
tempDir = mkdtempSync(join(tmpdir(), 'lettabot-e2e-'));
// Set agent ID from secrets
process.env.LETTA_AGENT_ID = process.env.LETTA_E2E_AGENT_ID;
// Initialize bot with test config
bot = new LettaBot({
model: 'claude-sonnet-4-20250514', // Good balance of speed/quality
workingDir: tempDir,
agentName: 'e2e-test',
});
// Register mock channel
mockAdapter = new MockChannelAdapter();
bot.registerChannel(mockAdapter);
console.log('[E2E] Bot initialized with agent:', process.env.LETTA_E2E_AGENT_ID);
}, 30000); // 30s timeout for setup
afterAll(async () => {
// Cleanup temp directory
try {
rmSync(tempDir, { recursive: true, force: true });
} catch {
// Ignore cleanup errors
}
});
it('responds to a simple message', async () => {
const response = await mockAdapter.simulateMessage('Say "E2E TEST OK" and nothing else.');
expect(response).toBeTruthy();
expect(response.length).toBeGreaterThan(0);
// The agent should respond with something containing our test phrase
expect(response.toUpperCase()).toContain('E2E TEST OK');
}, 60000); // 60s timeout
it('handles /status command', async () => {
const response = await mockAdapter.simulateMessage('/status');
expect(response).toBeTruthy();
// Status should contain agent info
expect(response).toMatch(/agent|status/i);
}, 30000);
it('handles /help command', async () => {
const response = await mockAdapter.simulateMessage('/help');
expect(response).toBeTruthy();
expect(response).toContain('LettaBot');
expect(response).toContain('/status');
}, 10000);
it('maintains conversation context', async () => {
// First message - set context
await mockAdapter.simulateMessage('Remember this number: 42424242');
// Clear messages but keep session
mockAdapter.clearMessages();
// Second message - recall context
const response = await mockAdapter.simulateMessage('What number did I just tell you to remember?');
expect(response).toContain('42424242');
}, 120000); // 2 min timeout for multi-turn
});

1
package.json
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@@ -17,6 +17,7 @@
"start": "node dist/main.js",
"test": "vitest",
"test:run": "vitest run",
"test:e2e": "vitest run e2e/",
"skills": "tsx src/cli.ts skills",
"skills:list": "tsx src/cli.ts skills list",
"skills:status": "tsx src/cli.ts skills status",

10
src/cli.ts
View File

@@ -103,7 +103,15 @@ async function server() {
// Check if configured
if (!existsSync(configPath)) {
console.log(`No config found at ${configPath}. Run "lettabot onboard" first.\n`);
console.log(`
No config file found. Searched locations:
1. ./lettabot.yaml (project-local - recommended)
2. ./lettabot.yml
3. ~/.lettabot/config.yaml (user global)
4. ~/.lettabot/config.yml
Run "lettabot onboard" to create a config file.
`);
process.exit(1);
}

94
src/core/bot.ts
View File

@@ -9,7 +9,7 @@ import { mkdirSync } from 'node:fs';
import type { ChannelAdapter } from '../channels/types.js';
import type { BotConfig, InboundMessage, TriggerContext } from './types.js';
import { Store } from './store.js';
import { updateAgentName } from '../tools/letta-api.js';
import { updateAgentName, getPendingApprovals, rejectApproval, cancelRuns, disableAllToolApprovals } from '../tools/letta-api.js';
import { installSkillsToAgent } from '../skills/loader.js';
import { formatMessageEnvelope } from './formatter.js';
import { loadMemoryBlocks } from './memory.js';
@@ -114,6 +114,72 @@ export class LettaBot {
}
}
/**
* Attempt to recover from stuck approval state.
* Returns true if recovery was attempted, false if no recovery needed.
* @param maxAttempts Maximum recovery attempts before giving up (default: 2)
*/
private async attemptRecovery(maxAttempts = 2): Promise<{ recovered: boolean; shouldReset: boolean }> {
if (!this.store.agentId) {
return { recovered: false, shouldReset: false };
}
const attempts = this.store.recoveryAttempts;
if (attempts >= maxAttempts) {
console.error(`[Bot] Recovery failed after ${attempts} attempts.`);
console.error('[Bot] Try running: lettabot reset-conversation');
return { recovered: false, shouldReset: true };
}
console.log('[Bot] Checking for pending approvals...');
try {
// Check for pending approvals
const pendingApprovals = await getPendingApprovals(
this.store.agentId,
this.store.conversationId || undefined
);
if (pendingApprovals.length === 0) {
// No pending approvals, reset counter and continue
this.store.resetRecoveryAttempts();
return { recovered: false, shouldReset: false };
}
console.log(`[Bot] Found ${pendingApprovals.length} pending approval(s), attempting recovery...`);
this.store.incrementRecoveryAttempts();
// Reject all pending approvals
for (const approval of pendingApprovals) {
console.log(`[Bot] Rejecting approval for ${approval.toolName} (${approval.toolCallId})`);
await rejectApproval(
this.store.agentId,
{ toolCallId: approval.toolCallId, reason: 'Session was interrupted - retrying request' },
this.store.conversationId || undefined
);
}
// Cancel any active runs
const runIds = [...new Set(pendingApprovals.map(a => a.runId))];
if (runIds.length > 0) {
console.log(`[Bot] Cancelling ${runIds.length} active run(s)...`);
await cancelRuns(this.store.agentId, runIds);
}
// Disable tool approvals for the future (proactive fix)
console.log('[Bot] Disabling tool approval requirements...');
await disableAllToolApprovals(this.store.agentId);
console.log('[Bot] Recovery completed');
return { recovered: true, shouldReset: false };
} catch (error) {
console.error('[Bot] Recovery failed:', error);
this.store.incrementRecoveryAttempts();
return { recovered: false, shouldReset: this.store.recoveryAttempts >= maxAttempts };
}
}
/**
* Queue incoming message for processing (prevents concurrent SDK sessions)
*/
@@ -181,6 +247,20 @@ export class LettaBot {
await adapter.sendTypingIndicator(msg.chatId);
console.log('[Bot] Typing indicator sent');
// Attempt recovery from stuck approval state before starting session
const recovery = await this.attemptRecovery();
if (recovery.shouldReset) {
await adapter.sendMessage({
chatId: msg.chatId,
text: '(Session recovery failed after multiple attempts. Try: lettabot reset-conversation)',
threadId: msg.threadId,
});
return;
}
if (recovery.recovered) {
console.log('[Bot] Recovered from stuck approval, continuing with message processing');
}
// Create or resume session
let session: Session;
let usedDefaultConversation = false;
@@ -403,11 +483,11 @@ export class LettaBot {
console.error(`[Bot] Result error: ${resultMsg.error}`);
}
// Check for corrupted conversation (empty result usually means error)
// Check for potential stuck state (empty result usually means pending approval or error)
if (resultMsg.success && resultMsg.result === '' && !response.trim()) {
console.error('[Bot] Warning: Agent returned empty result with no response.');
console.error('[Bot] This often indicates a corrupted conversation.');
console.error('[Bot] Try running: lettabot reset-conversation');
console.error('[Bot] This may indicate a pending approval or interrupted session.');
console.error('[Bot] Recovery will be attempted on the next message.');
}
// Save agent ID and conversation ID
@@ -467,12 +547,10 @@ export class LettaBot {
console.error('[Bot] Stream received NO DATA - possible stuck tool approval');
console.error('[Bot] Conversation:', this.store.conversationId);
console.error('[Bot] This can happen when a previous session disconnected mid-tool-approval');
console.error('[Bot] The CLI should auto-recover, but if this persists:');
console.error('[Bot] 1. Run: lettabot reset-conversation');
console.error('[Bot] 2. Or try your message again (CLI may auto-recover on retry)');
console.error('[Bot] Recovery will be attempted automatically on the next message.');
await adapter.sendMessage({
chatId: msg.chatId,
text: '(No response - connection issue. Please try sending your message again.)',
text: '(Session interrupted. Please try your message again - recovery in progress.)',
threadId: msg.threadId
});
} else {

18
src/core/store.ts
View File

@@ -118,4 +118,22 @@ export class Store {
this.data.lastMessageTarget = target || undefined;
this.save();
}
// Recovery tracking
get recoveryAttempts(): number {
return this.data.recoveryAttempts || 0;
}
incrementRecoveryAttempts(): number {
this.data.recoveryAttempts = (this.data.recoveryAttempts || 0) + 1;
this.data.lastRecoveryAt = new Date().toISOString();
this.save();
return this.data.recoveryAttempts;
}
resetRecoveryAttempts(): void {
this.data.recoveryAttempts = 0;
this.save();
}
}

6
src/core/types.ts
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@@ -43,7 +43,7 @@ export interface TriggerContext {
// Original Types
// =============================================================================
export type ChannelId = 'telegram' | 'slack' | 'whatsapp' | 'signal' | 'discord';
export type ChannelId = 'telegram' | 'slack' | 'whatsapp' | 'signal' | 'discord' | 'mock';
export interface InboundAttachment {
id?: string;
@@ -149,4 +149,8 @@ export interface AgentStore {
createdAt?: string;
lastUsedAt?: string;
lastMessageTarget?: LastMessageTarget;
// Recovery tracking
recoveryAttempts?: number; // Count of consecutive recovery attempts
lastRecoveryAt?: string; // When last recovery was attempted
}

10
src/main.ts
View File

@@ -129,7 +129,15 @@ import { agentExists, findAgentByName } from './tools/letta-api.js';
const configPath = resolveConfigPath();
const isContainerDeploy = !!(process.env.RAILWAY_ENVIRONMENT || process.env.RENDER || process.env.FLY_APP_NAME || process.env.DOCKER_DEPLOY);
if (!existsSync(configPath) && !isContainerDeploy) {
console.log(`\n No config found at ${configPath}. Run "lettabot onboard" first.\n`);
console.log(`
No config file found. Searched locations:
1. ./lettabot.yaml (project-local - recommended)
2. ./lettabot.yml
3. ~/.lettabot/config.yaml (user global)
4. ~/.lettabot/config.yml
Run "lettabot onboard" to create a config file.
`);
process.exit(1);
}

117
src/test/mock-channel.ts Normal file
View File

@@ -0,0 +1,117 @@
/**
* Mock Channel Adapter for E2E Testing
*
* Captures messages sent by the bot and allows simulating inbound messages.
*/
import type { ChannelAdapter } from '../channels/types.js';
import type { InboundMessage, OutboundMessage } from '../core/types.js';
export class MockChannelAdapter implements ChannelAdapter {
readonly id = 'mock' as const;
readonly name = 'Mock (Testing)';
private running = false;
private sentMessages: OutboundMessage[] = [];
private responseResolvers: Array<(msg: OutboundMessage) => void> = [];
onMessage?: (msg: InboundMessage) => Promise<void>;
onCommand?: (command: string) => Promise<string | null>;
async start(): Promise<void> {
this.running = true;
}
async stop(): Promise<void> {
this.running = false;
}
isRunning(): boolean {
return this.running;
}
async sendMessage(msg: OutboundMessage): Promise<{ messageId: string }> {
const messageId = `mock-${Date.now()}`;
this.sentMessages.push(msg);
// Resolve any waiting promises
const resolver = this.responseResolvers.shift();
if (resolver) {
resolver(msg);
}
return { messageId };
}
async editMessage(_chatId: string, _messageId: string, _text: string): Promise<void> {
// No-op for mock
}
async sendTypingIndicator(_chatId: string): Promise<void> {
// No-op for mock
}
supportsEditing(): boolean {
return false; // Disable streaming edits for simpler testing
}
/**
* Simulate an inbound message and wait for response
*/
async simulateMessage(
text: string,
options: {
userId?: string;
chatId?: string;
userName?: string;
} = {}
): Promise<string> {
if (!this.onMessage) {
throw new Error('No message handler registered');
}
const chatId = options.chatId || 'test-chat-123';
// Create promise that resolves when bot sends response
const responsePromise = new Promise<OutboundMessage>((resolve) => {
this.responseResolvers.push(resolve);
});
// Send the inbound message
const inbound: InboundMessage = {
channel: 'mock',
chatId,
userId: options.userId || 'test-user-456',
userName: options.userName || 'Test User',
text,
timestamp: new Date(),
};
// Don't await - let it process async
this.onMessage(inbound).catch(err => {
console.error('[MockChannel] Error processing message:', err);
});
// Wait for response with timeout
const timeoutPromise = new Promise<never>((_, reject) => {
setTimeout(() => reject(new Error('Response timeout (60s)')), 60000);
});
const response = await Promise.race([responsePromise, timeoutPromise]);
return response.text;
}
/**
* Get all sent messages (for assertions)
*/
getSentMessages(): OutboundMessage[] {
return [...this.sentMessages];
}
/**
* Clear sent messages
*/
clearMessages(): void {
this.sentMessages = [];
}
}

204
src/tools/letta-api.ts
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@@ -211,3 +211,207 @@ export async function findAgentByName(name: string): Promise<{ id: string; name:
return null;
}
}
// ============================================================================
// Tool Approval Management
// ============================================================================
export interface PendingApproval {
runId: string;
toolCallId: string;
toolName: string;
messageId: string;
}
/**
* Check for pending approval requests on an agent's conversation.
* Returns details of any tool calls waiting for approval.
*/
export async function getPendingApprovals(
agentId: string,
conversationId?: string
): Promise<PendingApproval[]> {
try {
const client = getClient();
// First, check for runs with 'requires_approval' stop reason
const runsPage = await client.runs.list({
agent_id: agentId,
conversation_id: conversationId,
stop_reason: 'requires_approval',
limit: 10,
});
const pendingApprovals: PendingApproval[] = [];
for await (const run of runsPage) {
if (run.status === 'running' || run.stop_reason === 'requires_approval') {
// Get recent messages to find approval_request_message
const messagesPage = await client.agents.messages.list(agentId, {
conversation_id: conversationId,
limit: 20,
});
for await (const msg of messagesPage) {
// Check for approval_request_message type
if ('message_type' in msg && msg.message_type === 'approval_request_message') {
const approvalMsg = msg as {
id: string;
tool_calls?: Array<{ tool_call_id: string; name: string }>;
tool_call?: { tool_call_id: string; name: string };
run_id?: string;
};
// Extract tool call info
const toolCalls = approvalMsg.tool_calls || (approvalMsg.tool_call ? [approvalMsg.tool_call] : []);
for (const tc of toolCalls) {
pendingApprovals.push({
runId: approvalMsg.run_id || run.id,
toolCallId: tc.tool_call_id,
toolName: tc.name,
messageId: approvalMsg.id,
});
}
}
}
}
}
return pendingApprovals;
} catch (e) {
console.error('[Letta API] Failed to get pending approvals:', e);
return [];
}
}
/**
* Reject a pending tool approval request.
* Sends an approval response with approve: false.
*/
export async function rejectApproval(
agentId: string,
approval: {
toolCallId: string;
reason?: string;
},
conversationId?: string
): Promise<boolean> {
try {
const client = getClient();
// Send approval response via messages.create
await client.agents.messages.create(agentId, {
messages: [{
type: 'approval',
approvals: [{
approve: false,
tool_call_id: approval.toolCallId,
reason: approval.reason || 'Session was interrupted - please retry your request',
}],
}],
streaming: false,
});
console.log(`[Letta API] Rejected approval for tool call ${approval.toolCallId}`);
return true;
} catch (e) {
console.error('[Letta API] Failed to reject approval:', e);
return false;
}
}
/**
* Cancel active runs for an agent.
* Optionally specify specific run IDs to cancel.
* Note: Requires Redis on the server for canceling active runs.
*/
export async function cancelRuns(
agentId: string,
runIds?: string[]
): Promise<boolean> {
try {
const client = getClient();
await client.agents.messages.cancel(agentId, {
run_ids: runIds,
});
console.log(`[Letta API] Cancelled runs for agent ${agentId}${runIds ? ` (${runIds.join(', ')})` : ''}`);
return true;
} catch (e) {
console.error('[Letta API] Failed to cancel runs:', e);
return false;
}
}
/**
* Disable tool approval requirement for a specific tool on an agent.
* This sets requires_approval: false at the server level.
*/
export async function disableToolApproval(
agentId: string,
toolName: string
): Promise<boolean> {
try {
const client = getClient();
await client.agents.tools.updateApproval(toolName, {
agent_id: agentId,
body_requires_approval: false,
});
console.log(`[Letta API] Disabled approval requirement for tool ${toolName} on agent ${agentId}`);
return true;
} catch (e) {
console.error(`[Letta API] Failed to disable tool approval for ${toolName}:`, e);
return false;
}
}
/**
* Get tools attached to an agent with their approval settings.
*/
export async function getAgentTools(agentId: string): Promise<Array<{
name: string;
id: string;
requiresApproval?: boolean;
}>> {
try {
const client = getClient();
const toolsPage = await client.agents.tools.list(agentId);
const tools: Array<{ name: string; id: string; requiresApproval?: boolean }> = [];
for await (const tool of toolsPage) {
tools.push({
name: tool.name ?? 'unknown',
id: tool.id,
// Note: The API might not return this field directly on list
// We may need to check each tool individually
requiresApproval: (tool as { requires_approval?: boolean }).requires_approval,
});
}
return tools;
} catch (e) {
console.error('[Letta API] Failed to get agent tools:', e);
return [];
}
}
/**
* Disable approval requirement for ALL tools on an agent.
* Useful for ensuring a headless deployment doesn't get stuck.
*/
export async function disableAllToolApprovals(agentId: string): Promise<number> {
try {
const tools = await getAgentTools(agentId);
let disabled = 0;
for (const tool of tools) {
const success = await disableToolApproval(agentId, tool.name);
if (success) disabled++;
}
console.log(`[Letta API] Disabled approval for ${disabled}/${tools.length} tools on agent ${agentId}`);
return disabled;
} catch (e) {
console.error('[Letta API] Failed to disable all tool approvals:', e);
return 0;
}
}