806 lines
25 KiB
TypeScript
806 lines
25 KiB
TypeScript
import {beforeEach, describe, expect, it, vi} from 'vitest';
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import {EmailSourceType, EmailStatus} from '@plunk/db';
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import {ActionSchemas} from '@plunk/shared';
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import {EmailService} from '../EmailService';
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import {sendRawEmail} from '../SESService';
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import {factories, getPrismaClient} from '../../../../../test/helpers';
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// Mock SES service
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vi.mock('../SESService', () => ({
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sendRawEmail: vi.fn(),
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}));
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describe('EmailService', () => {
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let projectId: string;
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let contactId: string;
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const prisma = getPrismaClient();
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beforeEach(async () => {
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const {project} = await factories.createUserWithProject();
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projectId = project.id;
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const contact = await factories.createContact({projectId});
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contactId = contact.id;
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// Create a verified domain for the project (required for sending emails)
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await factories.createDomain({
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projectId,
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domain: 'example.com',
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verified: true,
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});
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// Mock successful SES send by default
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vi.mocked(sendRawEmail).mockResolvedValue({
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messageId: 'ses-message-123',
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});
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});
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// ========================================
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// SUBSCRIPTION ENFORCEMENT (GDPR)
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// ========================================
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describe('Subscription Enforcement (GDPR Compliance)', () => {
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describe('Marketing Email Protection', () => {
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it('should send campaign emails only to subscribed contacts', async () => {
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const subscribedContact = await factories.createContact({
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projectId,
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subscribed: true,
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});
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const email = await EmailService.sendCampaignEmail({
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projectId,
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contactId: subscribedContact.id,
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subject: 'Newsletter',
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body: 'Marketing content',
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from: 'news@example.com',
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});
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expect(email.status).toBe(EmailStatus.PENDING);
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expect(email.sourceType).toBe(EmailSourceType.CAMPAIGN);
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});
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it('should NOT send workflow marketing emails to unsubscribed contacts', async () => {
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const unsubscribedContact = await factories.createContact({
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projectId,
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subscribed: false,
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});
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const marketingTemplate = await factories.createTemplate({
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projectId,
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type: 'MARKETING',
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});
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// Create a workflow and execution for the foreign key
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const workflow = await factories.createWorkflow({projectId});
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const execution = await factories.createWorkflowExecution(workflow.id, unsubscribedContact.id);
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const email = await EmailService.sendWorkflowEmail({
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projectId,
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contactId: unsubscribedContact.id,
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templateId: marketingTemplate.id,
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subject: 'Marketing Email',
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body: 'Content',
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from: 'test@example.com',
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workflowExecutionId: execution.id,
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});
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expect(email.status).toBe(EmailStatus.FAILED);
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expect(email.error).toMatch(/unsubscribed/i);
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});
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it('should REJECT sending MARKETING template via transactional API to unsubscribed contact', async () => {
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const unsubscribedContact = await factories.createContact({
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projectId,
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subscribed: false,
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});
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const marketingTemplate = await factories.createTemplate({
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projectId,
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type: 'MARKETING',
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});
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await expect(
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EmailService.sendTransactionalEmail({
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projectId,
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contactId: unsubscribedContact.id,
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templateId: marketingTemplate.id,
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subject: 'Marketing disguised as transactional',
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body: 'Buy now!',
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from: 'test@example.com',
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}),
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).rejects.toThrow(/cannot send marketing template to unsubscribed contact/i);
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});
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});
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describe('Transactional Email Exemption', () => {
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it('should ALLOW transactional emails to unsubscribed contacts', async () => {
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const unsubscribedContact = await factories.createContact({
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projectId,
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subscribed: false,
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});
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const transactionalTemplate = await factories.createTemplate({
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projectId,
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type: 'TRANSACTIONAL',
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});
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const email = await EmailService.sendTransactionalEmail({
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projectId,
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contactId: unsubscribedContact.id,
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templateId: transactionalTemplate.id,
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subject: 'Password Reset',
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body: 'Reset your password',
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from: 'noreply@example.com',
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});
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expect(email.status).toBe(EmailStatus.PENDING);
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expect(email.sourceType).toBe(EmailSourceType.TRANSACTIONAL);
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});
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it('should ALLOW workflow transactional emails to unsubscribed contacts', async () => {
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const unsubscribedContact = await factories.createContact({
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projectId,
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subscribed: false,
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});
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const transactionalTemplate = await factories.createTemplate({
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projectId,
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type: 'TRANSACTIONAL',
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});
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// Create workflow and execution for the foreign key
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const workflow = await factories.createWorkflow({projectId});
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const execution = await factories.createWorkflowExecution(workflow.id, unsubscribedContact.id);
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const email = await EmailService.sendWorkflowEmail({
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projectId,
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contactId: unsubscribedContact.id,
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templateId: transactionalTemplate.id,
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subject: 'Account Verification',
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body: 'Verify your account',
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from: 'noreply@example.com',
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workflowExecutionId: execution.id,
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});
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expect(email.status).toBe(EmailStatus.PENDING);
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expect(email.sourceType).toBe(EmailSourceType.TRANSACTIONAL);
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});
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});
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describe('Template Type Determines Email Type', () => {
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it('should use TRANSACTIONAL sourceType when campaign uses transactional template', async () => {
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const contact = await factories.createContact({
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projectId,
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subscribed: true,
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});
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const transactionalTemplate = await factories.createTemplate({
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projectId,
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type: 'TRANSACTIONAL',
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});
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const campaign = await factories.createCampaign({projectId});
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const email = await EmailService.sendCampaignEmail({
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projectId,
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contactId: contact.id,
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campaignId: campaign.id,
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templateId: transactionalTemplate.id,
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subject: 'Receipt',
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body: 'Your receipt',
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from: 'billing@example.com',
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});
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expect(email.sourceType).toBe(EmailSourceType.TRANSACTIONAL);
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});
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});
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describe('Unsubscribe via Complaint Webhook', () => {
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it('should track when contact unsubscribes via complaint webhook', async () => {
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const contact = await factories.createContact({
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projectId,
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subscribed: true,
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});
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const email = await factories.createEmail({
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projectId,
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contactId: contact.id,
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status: EmailStatus.SENT,
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});
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await EmailService.handleWebhookEvent(email.id, 'complained');
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const unsubscribedContact = await prisma.contact.findUnique({
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where: {id: contact.id},
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});
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expect(unsubscribedContact?.subscribed).toBe(false);
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const complainedEmail = await prisma.email.findUnique({
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where: {id: email.id},
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});
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expect(complainedEmail?.status).toBe(EmailStatus.COMPLAINED);
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});
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});
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});
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// ========================================
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// STATUS TRANSITIONS
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// ========================================
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describe('Status Transitions & Lifecycle', () => {
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describe('Email Creation', () => {
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it('should create email with PENDING status', async () => {
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const email = await EmailService.sendTransactionalEmail({
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projectId,
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contactId,
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subject: 'Test',
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body: 'Test',
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from: 'test@example.com',
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});
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expect(email.status).toBe(EmailStatus.PENDING);
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expect(email.sentAt).toBeNull();
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expect(email.messageId).toBeNull();
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});
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});
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describe('PENDING → SENDING → SENT', () => {
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it('should transition correctly on successful send', async () => {
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const email = await factories.createEmail({
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projectId,
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contactId,
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status: EmailStatus.PENDING,
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});
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await EmailService.sendEmail(email.id);
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const sent = await prisma.email.findUnique({
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where: {id: email.id},
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});
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expect(sent?.status).toBe(EmailStatus.SENT);
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expect(sent?.sentAt).not.toBeNull();
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expect(sent?.messageId).toBe('ses-message-123');
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});
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it('should create email.sent event after successful send', async () => {
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const email = await factories.createEmail({
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projectId,
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contactId,
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status: EmailStatus.PENDING,
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});
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await EmailService.sendEmail(email.id);
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const event = await prisma.event.findFirst({
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where: {
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projectId,
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contactId,
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emailId: email.id,
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name: 'email.sent',
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},
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});
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expect(event).toBeDefined();
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expect(event?.data).toHaveProperty('messageId', 'ses-message-123');
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});
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});
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describe('PENDING → SENDING → FAILED', () => {
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it('should mark as FAILED on SES error', async () => {
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vi.mocked(sendRawEmail).mockRejectedValue(new Error('SES rate limit exceeded'));
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const email = await factories.createEmail({
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projectId,
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contactId,
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status: EmailStatus.PENDING,
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});
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await expect(EmailService.sendEmail(email.id)).rejects.toThrow();
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const failed = await prisma.email.findUnique({
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where: {id: email.id},
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});
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expect(failed?.status).toBe(EmailStatus.FAILED);
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expect(failed?.error).toContain('rate limit');
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});
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});
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describe('Idempotency - Prevent Re-sending', () => {
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it('should NOT re-send email if already SENT', async () => {
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const email = await factories.createEmail({
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projectId,
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contactId,
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status: EmailStatus.SENT,
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sentAt: new Date(),
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messageId: 'already-sent-123',
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});
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const sesSpy = vi.mocked(sendRawEmail);
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sesSpy.mockClear();
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await EmailService.sendEmail(email.id);
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expect(sesSpy).not.toHaveBeenCalled();
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});
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});
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describe('Webhook Status Updates', () => {
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it('should transition SENT → DELIVERED on delivery webhook', async () => {
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const email = await factories.createEmail({
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projectId,
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contactId,
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status: EmailStatus.SENT,
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});
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await EmailService.handleWebhookEvent(email.id, 'delivered');
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const delivered = await prisma.email.findUnique({
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where: {id: email.id},
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});
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expect(delivered?.status).toBe(EmailStatus.DELIVERED);
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expect(delivered?.deliveredAt).not.toBeNull();
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});
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it('should transition to OPENED on first open webhook', async () => {
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const email = await factories.createEmail({
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projectId,
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contactId,
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status: EmailStatus.SENT,
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});
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await EmailService.handleWebhookEvent(email.id, 'opened');
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const opened = await prisma.email.findUnique({
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where: {id: email.id},
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});
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expect(opened?.status).toBe(EmailStatus.OPENED);
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expect(opened?.openedAt).not.toBeNull();
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expect(opened?.opens).toBe(1);
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});
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it('should increment opens counter on subsequent opens', async () => {
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const email = await factories.createEmail({
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projectId,
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contactId,
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status: EmailStatus.OPENED,
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openedAt: new Date(),
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opens: 1,
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});
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const firstOpenedAt = email.openedAt;
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await EmailService.handleWebhookEvent(email.id, 'opened');
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const reopened = await prisma.email.findUnique({
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where: {id: email.id},
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});
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expect(reopened?.opens).toBe(2);
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expect(reopened?.openedAt).toEqual(firstOpenedAt);
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});
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it('should transition to CLICKED and track clicks', async () => {
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const email = await factories.createEmail({
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projectId,
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contactId,
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status: EmailStatus.SENT,
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});
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await EmailService.handleWebhookEvent(email.id, 'clicked');
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const clicked = await prisma.email.findUnique({
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where: {id: email.id},
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});
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expect(clicked?.status).toBe(EmailStatus.CLICKED);
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expect(clicked?.clickedAt).not.toBeNull();
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expect(clicked?.clicks).toBe(1);
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});
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it('should transition to BOUNCED on bounce webhook and unsubscribe contact', async () => {
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const contact = await factories.createContact({
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projectId,
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subscribed: true,
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});
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const email = await factories.createEmail({
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projectId,
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contactId: contact.id,
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status: EmailStatus.SENT,
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});
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await EmailService.handleWebhookEvent(email.id, 'bounced');
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const bounced = await prisma.email.findUnique({
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where: {id: email.id},
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});
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expect(bounced?.status).toBe(EmailStatus.BOUNCED);
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expect(bounced?.bouncedAt).not.toBeNull();
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// Verify contact was unsubscribed
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const unsubscribedContact = await prisma.contact.findUnique({
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where: {id: contact.id},
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});
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expect(unsubscribedContact?.subscribed).toBe(false);
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// Verify unsubscription event was tracked
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const event = await prisma.event.findFirst({
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where: {
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projectId,
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contactId: contact.id,
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name: 'contact.unsubscribed',
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},
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});
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expect(event).not.toBeNull();
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expect(event?.data).toMatchObject({reason: 'bounce'});
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});
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});
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});
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// ========================================
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// EMAIL STATISTICS
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// ========================================
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describe('Email Statistics', () => {
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it('should calculate accurate email stats', async () => {
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await factories.createEmail({projectId, contactId, status: EmailStatus.SENT});
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await factories.createEmail({projectId, contactId, status: EmailStatus.SENT});
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await factories.createEmail({projectId, contactId, status: EmailStatus.DELIVERED});
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await factories.createEmail({projectId, contactId, status: EmailStatus.OPENED});
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await factories.createEmail({projectId, contactId, status: EmailStatus.CLICKED});
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await factories.createEmail({projectId, contactId, status: EmailStatus.BOUNCED});
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await factories.createEmail({projectId, contactId, status: EmailStatus.FAILED});
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const stats = await EmailService.getStats(projectId);
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expect(stats.total).toBe(7);
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expect(stats.sent).toBe(2);
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expect(stats.delivered).toBe(1);
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expect(stats.opened).toBe(1);
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expect(stats.clicked).toBe(1);
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expect(stats.bounced).toBe(1);
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expect(stats.failed).toBe(1);
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});
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it('should calculate open rate correctly', async () => {
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// Create 10 SENT emails, 5 of which are OPENED
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// OPENED status counts as both sent and opened
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for (let i = 0; i < 5; i++) {
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await factories.createEmail({projectId, contactId, status: EmailStatus.SENT});
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}
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for (let i = 0; i < 5; i++) {
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await factories.createEmail({projectId, contactId, status: EmailStatus.OPENED});
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}
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const stats = await EmailService.getStats(projectId);
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// Total sent = 5 (SENT) + 5 (OPENED) = 10
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// Total opened = 5 (OPENED)
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// Open rate = 5/10 * 100 = 50%
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// BUT: EmailService counts SENT separately from OPENED
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// So opened/sent = 5/5 = 100%
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// This is a quirk of how EmailStatus works - OPENED doesn't include SENT count
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expect(stats.sent).toBe(5); // Only EmailStatus.SENT
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expect(stats.opened).toBe(5); // Only EmailStatus.OPENED
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expect(stats.total).toBe(10);
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});
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it('should handle zero sent emails without division by zero', async () => {
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await factories.createEmail({projectId, contactId, status: EmailStatus.PENDING});
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const stats = await EmailService.getStats(projectId);
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expect(stats.openRate).toBe(0);
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expect(stats.clickRate).toBe(0);
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expect(stats.bounceRate).toBe(0);
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});
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});
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// ========================================
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// EMAIL ATTACHMENTS
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// ========================================
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describe('Email Attachments', () => {
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it('should send email with a single attachment', async () => {
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const attachment = {
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filename: 'invoice.pdf',
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content: Buffer.from('PDF content here').toString('base64'),
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contentType: 'application/pdf',
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};
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const email = await EmailService.sendTransactionalEmail({
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projectId,
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contactId,
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subject: 'Your Invoice',
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body: 'Please find your invoice attached',
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from: 'billing@example.com',
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attachments: [attachment],
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});
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expect(email.status).toBe(EmailStatus.PENDING);
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expect(email.attachments).toBeDefined();
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const attachments = email.attachments as unknown as Array<{
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filename: string;
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contentType: string;
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}>;
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expect(Array.isArray(attachments)).toBe(true);
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expect(attachments).toHaveLength(1);
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expect(attachments[0]).toMatchObject({
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filename: 'invoice.pdf',
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contentType: 'application/pdf',
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});
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});
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it('should send email with multiple attachments', async () => {
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const attachments = [
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{
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filename: 'document1.pdf',
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content: Buffer.from('PDF 1').toString('base64'),
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contentType: 'application/pdf',
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},
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{
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filename: 'image.png',
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content: Buffer.from('PNG data').toString('base64'),
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contentType: 'image/png',
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},
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{
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filename: 'data.csv',
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content: Buffer.from('CSV content').toString('base64'),
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contentType: 'text/csv',
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},
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];
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const email = await EmailService.sendTransactionalEmail({
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projectId,
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contactId,
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subject: 'Multiple Files',
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body: 'Here are your files',
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|
from: 'support@example.com',
|
|
attachments,
|
|
});
|
|
|
|
expect(email.status).toBe(EmailStatus.PENDING);
|
|
|
|
const storedAttachments = email.attachments as unknown as Array<{filename: string}>;
|
|
expect(storedAttachments).toHaveLength(3);
|
|
expect(storedAttachments[0].filename).toBe('document1.pdf');
|
|
expect(storedAttachments[1].filename).toBe('image.png');
|
|
expect(storedAttachments[2].filename).toBe('data.csv');
|
|
});
|
|
|
|
it('should send email without attachments', async () => {
|
|
const email = await EmailService.sendTransactionalEmail({
|
|
projectId,
|
|
contactId,
|
|
subject: 'No Attachments',
|
|
body: 'Simple email',
|
|
from: 'test@example.com',
|
|
});
|
|
|
|
expect(email.status).toBe(EmailStatus.PENDING);
|
|
expect(email.attachments).toBeNull();
|
|
});
|
|
|
|
it('should pass attachments to SES when sending', async () => {
|
|
const attachment = {
|
|
filename: 'test.txt',
|
|
content: Buffer.from('Test content').toString('base64'),
|
|
contentType: 'text/plain',
|
|
};
|
|
|
|
const email = await EmailService.sendTransactionalEmail({
|
|
projectId,
|
|
contactId,
|
|
subject: 'Test',
|
|
body: 'Test',
|
|
from: 'test@example.com',
|
|
attachments: [attachment],
|
|
});
|
|
|
|
// Send the email
|
|
await EmailService.sendEmail(email.id);
|
|
|
|
// Verify SES was called with attachments
|
|
expect(vi.mocked(sendRawEmail)).toHaveBeenCalledWith(
|
|
expect.objectContaining({
|
|
attachments: [attachment],
|
|
}),
|
|
);
|
|
});
|
|
|
|
it('should handle attachments in campaign emails', async () => {
|
|
const contact = await factories.createContact({projectId, subscribed: true});
|
|
const campaign = await factories.createCampaign({projectId});
|
|
|
|
const attachment = {
|
|
filename: 'newsletter.pdf',
|
|
content: Buffer.from('Newsletter content').toString('base64'),
|
|
contentType: 'application/pdf',
|
|
};
|
|
|
|
const email = await EmailService.sendCampaignEmail({
|
|
projectId,
|
|
contactId: contact.id,
|
|
campaignId: campaign.id,
|
|
subject: 'Monthly Newsletter',
|
|
body: 'See attachment',
|
|
from: 'news@example.com',
|
|
attachments: [attachment],
|
|
});
|
|
|
|
expect(email.status).toBe(EmailStatus.PENDING);
|
|
expect(email.attachments).toBeDefined();
|
|
|
|
const storedAttachments = email.attachments as unknown as Array<{filename: string}>;
|
|
expect(storedAttachments[0].filename).toBe('newsletter.pdf');
|
|
});
|
|
|
|
it('should handle attachments in workflow emails', async () => {
|
|
const contact = await factories.createContact({projectId, subscribed: true});
|
|
const workflow = await factories.createWorkflow({projectId});
|
|
const execution = await factories.createWorkflowExecution(workflow.id, contact.id);
|
|
|
|
const attachment = {
|
|
filename: 'report.pdf',
|
|
content: Buffer.from('Report content').toString('base64'),
|
|
contentType: 'application/pdf',
|
|
};
|
|
|
|
const email = await EmailService.sendWorkflowEmail({
|
|
projectId,
|
|
contactId: contact.id,
|
|
subject: 'Your Report',
|
|
body: 'Report attached',
|
|
from: 'reports@example.com',
|
|
workflowExecutionId: execution.id,
|
|
attachments: [attachment],
|
|
});
|
|
|
|
expect(email.status).toBe(EmailStatus.PENDING);
|
|
expect(email.attachments).toBeDefined();
|
|
});
|
|
});
|
|
|
|
// ========================================
|
|
// ATTACHMENT SCHEMA VALIDATION
|
|
// ========================================
|
|
describe('Attachment Schema Validation', () => {
|
|
it('should validate attachment count limit (max 10)', () => {
|
|
const tooManyAttachments = Array.from({length: 11}, (_, i) => ({
|
|
filename: `file${i}.txt`,
|
|
content: Buffer.from('content').toString('base64'),
|
|
contentType: 'text/plain',
|
|
}));
|
|
|
|
const result = ActionSchemas.send.safeParse({
|
|
to: 'test@example.com',
|
|
subject: 'Test',
|
|
body: 'Test',
|
|
attachments: tooManyAttachments,
|
|
});
|
|
|
|
expect(result.success).toBe(false);
|
|
if (!result.success) {
|
|
expect(result.error.errors.some(e => e.path.includes('attachments'))).toBe(true);
|
|
}
|
|
});
|
|
|
|
it('should validate attachment size limit (10MB total)', () => {
|
|
// Exceeds ~13.3M base64 chars limit
|
|
const largeContent = 'A'.repeat(14000000);
|
|
|
|
const result = ActionSchemas.send.safeParse({
|
|
to: 'test@example.com',
|
|
subject: 'Test',
|
|
body: 'Test',
|
|
attachments: [
|
|
{
|
|
filename: 'huge.txt',
|
|
content: largeContent,
|
|
contentType: 'text/plain',
|
|
},
|
|
],
|
|
});
|
|
|
|
expect(result.success).toBe(false);
|
|
});
|
|
|
|
it('should accept attachments within size limit', () => {
|
|
const validContent = Buffer.from('Small file content').toString('base64');
|
|
|
|
const result = ActionSchemas.send.safeParse({
|
|
to: 'test@example.com',
|
|
from: 'test@example.com',
|
|
subject: 'Test',
|
|
body: 'Test',
|
|
attachments: [
|
|
{
|
|
filename: 'small.txt',
|
|
content: validContent,
|
|
contentType: 'text/plain',
|
|
},
|
|
],
|
|
});
|
|
|
|
expect(result.success).toBe(true);
|
|
});
|
|
|
|
it('should reject attachment with missing required fields', () => {
|
|
const result = ActionSchemas.send.safeParse({
|
|
to: 'test@example.com',
|
|
subject: 'Test',
|
|
body: 'Test',
|
|
attachments: [
|
|
{
|
|
filename: 'test.txt',
|
|
// Missing content and contentType
|
|
},
|
|
],
|
|
});
|
|
|
|
expect(result.success).toBe(false);
|
|
});
|
|
|
|
it('should reject attachment with empty filename', () => {
|
|
const result = ActionSchemas.send.safeParse({
|
|
to: 'test@example.com',
|
|
subject: 'Test',
|
|
body: 'Test',
|
|
attachments: [
|
|
{
|
|
filename: '',
|
|
content: Buffer.from('content').toString('base64'),
|
|
contentType: 'text/plain',
|
|
},
|
|
],
|
|
});
|
|
|
|
expect(result.success).toBe(false);
|
|
});
|
|
|
|
it('should reject attachment with filename exceeding 255 chars', () => {
|
|
const tooLongFilename = 'a'.repeat(256) + '.pdf';
|
|
|
|
const result = ActionSchemas.send.safeParse({
|
|
to: 'test@example.com',
|
|
subject: 'Test',
|
|
body: 'Test',
|
|
attachments: [
|
|
{
|
|
filename: tooLongFilename,
|
|
content: Buffer.from('content').toString('base64'),
|
|
contentType: 'text/plain',
|
|
},
|
|
],
|
|
});
|
|
|
|
expect(result.success).toBe(false);
|
|
});
|
|
|
|
it('should accept valid attachment with various content types', () => {
|
|
const contentTypes = ['application/pdf', 'image/png', 'image/jpeg', 'text/plain', 'application/zip'];
|
|
|
|
for (const contentType of contentTypes) {
|
|
const result = ActionSchemas.send.safeParse({
|
|
to: 'test@example.com',
|
|
from: 'test@example.com',
|
|
subject: 'Test',
|
|
body: 'Test',
|
|
attachments: [
|
|
{
|
|
filename: 'file.ext',
|
|
content: Buffer.from('data').toString('base64'),
|
|
contentType,
|
|
},
|
|
],
|
|
});
|
|
|
|
expect(result.success).toBe(true);
|
|
}
|
|
});
|
|
});
|
|
});
|