/**
* Tests for send_sms MCP tool
* Tests validation schema and edge cases
*/
import { z } from 'zod';
// Define the schema directly for testing (mirrors the actual implementation)
const sendSmsSchema = z.object({
to: z.string().regex(
/^\+[1-9]\d{1,14}$/,
'Phone number must be in E.164 format (+1234567890)'
),
message: z.string().min(1).max(1600, 'Message must be between 1 and 1600 characters'),
from: z.string().regex(/^\+[1-9]\d{1,14}$/).optional(),
conversationId: z.string().uuid().optional(),
});
describe('send_sms schema validation', () => {
describe('to field', () => {
it('should accept valid E.164 phone number', () => {
const result = sendSmsSchema.safeParse({
to: '+15559876543',
message: 'Hello!',
});
expect(result.success).toBe(true);
});
it('should accept international phone numbers', () => {
const result = sendSmsSchema.safeParse({
to: '+447911123456',
message: 'Hello!',
});
expect(result.success).toBe(true);
});
it('should reject phone number without + prefix', () => {
const result = sendSmsSchema.safeParse({
to: '5559876543',
message: 'Hello!',
});
expect(result.success).toBe(false);
if (!result.success) {
expect(result.error.errors[0].message).toContain('E.164 format');
}
});
it('should reject phone number starting with +0', () => {
const result = sendSmsSchema.safeParse({
to: '+05559876543',
message: 'Hello!',
});
expect(result.success).toBe(false);
});
it('should reject phone number with dashes', () => {
const result = sendSmsSchema.safeParse({
to: '+1-555-987-6543',
message: 'Hello!',
});
expect(result.success).toBe(false);
});
it('should reject empty phone number', () => {
const result = sendSmsSchema.safeParse({
to: '',
message: 'Hello!',
});
expect(result.success).toBe(false);
});
});
describe('message field', () => {
it('should accept valid message', () => {
const result = sendSmsSchema.safeParse({
to: '+15559876543',
message: 'Hello, this is a test message!',
});
expect(result.success).toBe(true);
});
it('should reject empty message', () => {
const result = sendSmsSchema.safeParse({
to: '+15559876543',
message: '',
});
expect(result.success).toBe(false);
});
it('should accept message at maximum length (1600 chars)', () => {
const result = sendSmsSchema.safeParse({
to: '+15559876543',
message: 'a'.repeat(1600),
});
expect(result.success).toBe(true);
});
it('should reject message over 1600 characters', () => {
const result = sendSmsSchema.safeParse({
to: '+15559876543',
message: 'a'.repeat(1601),
});
expect(result.success).toBe(false);
});
it('should accept message with unicode characters', () => {
const result = sendSmsSchema.safeParse({
to: '+15559876543',
message: 'Hello! 👋 How are you? 你好',
});
expect(result.success).toBe(true);
});
});
describe('from field (optional)', () => {
it('should accept valid from number', () => {
const result = sendSmsSchema.safeParse({
to: '+15559876543',
message: 'Hello!',
from: '+15551234567',
});
expect(result.success).toBe(true);
});
it('should work without from number', () => {
const result = sendSmsSchema.safeParse({
to: '+15559876543',
message: 'Hello!',
});
expect(result.success).toBe(true);
if (result.success) {
expect(result.data.from).toBeUndefined();
}
});
it('should reject invalid from number format', () => {
const result = sendSmsSchema.safeParse({
to: '+15559876543',
message: 'Hello!',
from: '5551234567',
});
expect(result.success).toBe(false);
});
});
describe('conversationId field (optional)', () => {
it('should accept valid UUID', () => {
const result = sendSmsSchema.safeParse({
to: '+15559876543',
message: 'Hello!',
conversationId: '550e8400-e29b-41d4-a716-446655440000',
});
expect(result.success).toBe(true);
});
it('should work without conversationId', () => {
const result = sendSmsSchema.safeParse({
to: '+15559876543',
message: 'Hello!',
});
expect(result.success).toBe(true);
});
it('should reject invalid UUID', () => {
const result = sendSmsSchema.safeParse({
to: '+15559876543',
message: 'Hello!',
conversationId: 'not-a-uuid',
});
expect(result.success).toBe(false);
});
it('should reject UUID-like string with wrong format', () => {
const result = sendSmsSchema.safeParse({
to: '+15559876543',
message: 'Hello!',
conversationId: '550e8400e29b41d4a716446655440000', // Missing dashes
});
expect(result.success).toBe(false);
});
});
describe('combined validation', () => {
it('should accept all valid fields', () => {
const result = sendSmsSchema.safeParse({
to: '+15559876543',
message: 'Hello!',
from: '+15551234567',
conversationId: '550e8400-e29b-41d4-a716-446655440000',
});
expect(result.success).toBe(true);
});
it('should reject missing required fields', () => {
const result = sendSmsSchema.safeParse({
to: '+15559876543',
// missing message
});
expect(result.success).toBe(false);
});
it('should reject completely empty object', () => {
const result = sendSmsSchema.safeParse({});
expect(result.success).toBe(false);
});
});
});
