import test from 'node:test';
import assert from 'node:assert/strict';
import {validateTeam} from '../src/services/teamData.js';
test('team data accepts empty roster and rejects malformed or duplicate members',()=>{
 const valid={id:'qa',name:'QA Uzman',role:'Uzman',email:'qa@example.test'};
 assert.deepEqual(validateTeam([]),[]);assert.deepEqual(validateTeam([valid]),[valid]);
 for(const bad of [{},null,[{}],[{...valid,name:' '}],[{...valid,email:'invalid'}],[{...valid,role:null}],[valid,valid]])assert.throws(()=>validateTeam(bad));
});