import test from 'node:test';
import assert from 'node:assert/strict';
import {startRuntime} from '../src/startup.js';
import {validateSettings} from '../src/core.js';
test('older separate KV preferences become one precision',()=>{
 const s=validateSettings({cacheK:'q8_0',cacheV:'f32'});
 assert.equal(s.cacheK,'q8_0');assert.equal(s.cacheV,'q8_0');
});
test('cancel stops GPU startup even when the runtime never resolves',async()=>{
 const controller=new AbortController();let stopped=0;
 const pending=startRuntime(()=>new Promise(()=>{}),{signal:controller.signal,stop:()=>stopped++});
 controller.abort();await assert.rejects(pending,{name:'AbortError'});assert.equal(stopped,1);
});
test('a runtime worker error rejects loading and stops its worker',async()=>{
 let fail,stopped=0;
 const pending=startRuntime(()=>new Promise(()=>{}),{stop:()=>stopped++,onFailure:f=>{fail=f;}});
 fail(new Error('Worker failed to initialize'));
 await assert.rejects(pending,/Worker failed/);assert.equal(stopped,1);assert.equal(fail,null);
});
test('stalled startup times out without leaving the UI waiting',async()=>{
 let stopped=0;
 await assert.rejects(startRuntime(()=>new Promise(()=>{}),{stop:()=>stopped++,timeoutMs:10}),/GPU setup did not finish/);
 assert.equal(stopped,1);
});
test('successful startup removes cancellation and timeout handlers',async()=>{
 let stopped=0;const controller=new AbortController();
 assert.equal(await startRuntime(()=>42,{signal:controller.signal,stop:()=>stopped++,timeoutMs:10}),42);
 controller.abort();assert.equal(stopped,0);
});