test(email): add internal controller spec
Add unit tests for the internal email controller. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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features/email/backend/src/internal/internal.controller.spec.ts
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234
features/email/backend/src/internal/internal.controller.spec.ts
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import { Test, TestingModule } from '@nestjs/testing'
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import { UnauthorizedException } from '@nestjs/common'
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import { ConfigService } from '@nestjs/config'
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import { InternalController } from './internal.controller'
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import { UsersEmailService } from '../users/users-email.service'
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import { EmailQueueService } from '../core/email-queue.service'
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import { EmailCategory } from '../core/entities/email-log.entity'
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describe('InternalController', () => {
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let controller: InternalController
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let usersEmailService: jest.Mocked<UsersEmailService>
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let emailQueueService: jest.Mocked<EmailQueueService>
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const validApiKey = 'test-internal-api-key'
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const mockUserData = {
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userId: 'user-123',
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email: 'test@example.com',
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name: 'Test User',
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}
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describe('when API key is configured', () => {
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beforeEach(async () => {
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const module: TestingModule = await Test.createTestingModule({
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controllers: [InternalController],
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providers: [
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{
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provide: UsersEmailService,
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useValue: {
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sendWelcomeEmail: jest.fn().mockResolvedValue('job-welcome'),
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sendEmailVerification: jest.fn().mockResolvedValue('job-verify'),
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sendPasswordReset: jest.fn().mockResolvedValue('job-reset'),
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sendPasswordChanged: jest.fn().mockResolvedValue('job-changed'),
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sendAccountLocked: jest.fn().mockResolvedValue('job-locked'),
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sendLoginAlert: jest.fn().mockResolvedValue('job-alert'),
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},
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},
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{
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provide: EmailQueueService,
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useValue: {
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queueEmail: jest.fn().mockResolvedValue('job-otp'),
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},
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},
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{
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provide: ConfigService,
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useValue: {
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get: jest.fn((key: string, defaultValue?: string) => {
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if (key === 'INTERNAL_API_KEY') return validApiKey
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return defaultValue
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}),
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},
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},
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],
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}).compile()
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controller = module.get<InternalController>(InternalController)
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usersEmailService = module.get(UsersEmailService)
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emailQueueService = module.get(EmailQueueService)
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})
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describe('API key validation', () => {
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it('should reject requests without API key', async () => {
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await expect(controller.sendWelcome(undefined as any, mockUserData)).rejects.toThrow(
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UnauthorizedException
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)
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})
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it('should reject requests with invalid API key', async () => {
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await expect(controller.sendWelcome('wrong-key', mockUserData)).rejects.toThrow(
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UnauthorizedException
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)
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})
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it('should accept requests with valid API key', async () => {
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const result = await controller.sendWelcome(validApiKey, mockUserData)
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expect(result.jobId).toBe('job-welcome')
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})
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})
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describe('sendWelcome', () => {
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it('should send welcome email and return job ID', async () => {
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const result = await controller.sendWelcome(validApiKey, mockUserData)
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expect(result).toEqual({ jobId: 'job-welcome' })
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expect(usersEmailService.sendWelcomeEmail).toHaveBeenCalledWith(mockUserData)
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})
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})
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describe('sendVerification', () => {
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it('should send verification email', async () => {
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const body = { ...mockUserData, verificationToken: 'token-123' }
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const result = await controller.sendVerification(validApiKey, body)
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expect(result).toEqual({ jobId: 'job-verify' })
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expect(usersEmailService.sendEmailVerification).toHaveBeenCalledWith(body)
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})
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})
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describe('sendPasswordReset', () => {
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it('should send password reset email', async () => {
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const body = { ...mockUserData, resetToken: 'reset-123' }
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const result = await controller.sendPasswordReset(validApiKey, body)
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expect(result).toEqual({ jobId: 'job-reset' })
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expect(usersEmailService.sendPasswordReset).toHaveBeenCalledWith(body)
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})
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})
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describe('sendPasswordChanged', () => {
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it('should send password changed notification', async () => {
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const result = await controller.sendPasswordChanged(validApiKey, mockUserData)
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expect(result).toEqual({ jobId: 'job-changed' })
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expect(usersEmailService.sendPasswordChanged).toHaveBeenCalledWith(mockUserData)
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})
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})
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describe('sendAccountLocked', () => {
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it('should send account locked notification', async () => {
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const body = {
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...mockUserData,
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reason: 'Too many failed attempts',
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unlockUrl: 'https://example.com/unlock',
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}
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const result = await controller.sendAccountLocked(validApiKey, body)
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expect(result).toEqual({ jobId: 'job-locked' })
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expect(usersEmailService.sendAccountLocked).toHaveBeenCalledWith(body)
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})
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})
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describe('sendLoginAlert', () => {
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it('should send login alert', async () => {
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const body = {
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...mockUserData,
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device: 'Chrome on Windows',
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location: 'Reykjavik, Iceland',
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ipAddress: '192.168.1.1',
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}
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const result = await controller.sendLoginAlert(validApiKey, body)
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expect(result).toEqual({ jobId: 'job-alert' })
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expect(usersEmailService.sendLoginAlert).toHaveBeenCalledWith(body)
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})
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})
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describe('sendOtp', () => {
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it('should queue OTP email with correct template', async () => {
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const body = {
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...mockUserData,
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code: '123456',
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expiresInMinutes: 5,
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}
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const result = await controller.sendOtp(validApiKey, body)
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expect(result).toEqual({ jobId: 'job-otp' })
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expect(emailQueueService.queueEmail).toHaveBeenCalledWith({
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to: mockUserData.email,
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templateName: 'otp-code',
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variables: {
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name: mockUserData.name,
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code: '123456',
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expiresIn: '5 minutes',
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},
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category: EmailCategory.USERS,
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userId: mockUserData.userId,
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priority: 'high',
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})
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})
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it('should use default values when optional fields missing', async () => {
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const body = {
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userId: 'user-123',
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email: 'test@example.com',
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code: '654321',
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}
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await controller.sendOtp(validApiKey, body)
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expect(emailQueueService.queueEmail).toHaveBeenCalledWith(
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expect.objectContaining({
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variables: expect.objectContaining({
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name: 'there',
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expiresIn: '10 minutes',
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}),
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})
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)
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})
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})
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})
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describe('when API key is not configured', () => {
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beforeEach(async () => {
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const module: TestingModule = await Test.createTestingModule({
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controllers: [InternalController],
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providers: [
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{
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provide: UsersEmailService,
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useValue: {
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sendWelcomeEmail: jest.fn(),
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},
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},
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{
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provide: EmailQueueService,
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useValue: {
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queueEmail: jest.fn(),
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},
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},
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{
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provide: ConfigService,
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useValue: {
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get: jest.fn((key: string, defaultValue?: string) => {
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if (key === 'INTERNAL_API_KEY') return '' // Not configured
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return defaultValue
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}),
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},
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},
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],
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}).compile()
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controller = module.get<InternalController>(InternalController)
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})
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it('should reject all requests when not configured', async () => {
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await expect(controller.sendWelcome(validApiKey, mockUserData)).rejects.toThrow(
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'Internal API not configured'
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)
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})
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})
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})
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