const test=require('node:test');
const assert=require('node:assert/strict');
const fs=require('node:fs');
const vm=require('node:vm');
const source=fs.readFileSync('static/js/case-v5.js','utf8');
function fixture(groupId){
 const nodes={v5UserSearch:{value:''},v5UserOptions:{children:[],replaceChildren(){this.children=[];},append(button){this.children.push(button);}}};
 const context={members:[{user_id:7,display_name:'Christian Thomas',group_ids:[2,3]},{user_id:8,display_name:'Mette Jensen',group_ids:[4]}],groupId,userId:null,busy:false,pending:null,byId:id=>nodes[id],renderGroups(){},renderActions(){},document:{createElement(){return {setAttribute(key,value){this[key]=value;},addEventListener(type,fn){this[type]=fn;}};}}};
 vm.createContext(context);
 vm.runInContext(source.slice(source.indexOf('    function employeeInitials('),source.indexOf('    async function loadMembers()')),context);
 context.renderUsers();
 return {context,nodes};
}
test('initial buttons identify employees and infer their assignment group',()=>{
 const {context,nodes}=fixture(2);
 const buttons=nodes.v5UserOptions.children;
 assert.deepEqual(buttons.map(b=>b.textContent),['CT','MJ']);
 assert.equal(buttons[0].title,'Christian Thomas');
 buttons[0].click();assert.equal(context.userId,7);assert.equal(context.groupId,2);
 nodes.v5UserOptions.children[1].click();assert.equal(context.userId,8);assert.equal(context.groupId,4);
});
test('initials can be searched and an unrelated group is replaced',()=>{
 const {context,nodes}=fixture(99);
 nodes.v5UserSearch.value='ct';context.renderUsers();
 assert.equal(nodes.v5UserOptions.children.length,1);
 nodes.v5UserOptions.children[0].click();assert.equal(context.groupId,2);
});