0hmX/am3352

This code suite comprises TypeScript scripts that analyze, verify, and assemble complex DDR memory interface hardware, focusing on physical routing, via and pad placement, electrical clearance, and physical constraints, often involving precise geometric calculations and consistent provenance tracking.

Version
1.0.5
License
unset
Stars
0

tests/ddr-support-routing-context.test.ts

import {test,expect} from 'bun:test'
import {mkdtempSync,mkdirSync,writeFileSync,rmSync} from 'node:fs'
import {tmpdir} from 'node:os'
import {join} from 'node:path'
import {createHash} from 'node:crypto'
import {loadDdrSupportRoutingContext} from '../scripts/ddr-support-routing-context'
const hash=(x:any)=>createHash('sha256').update(JSON.stringify(x)).digest('hex')
async function fixture(change:boolean){
 const dir=mkdtempSync(join(tmpdir(),'ddr-support-netlist-'))
 try{
  const original=[{type:'source_net',source_net_id:'rail',name:'GND'}]
  mkdirSync(join(dir,'power-via-reuse'))
  writeFileSync(join(dir,'power-via-reuse/candidate.json'),JSON.stringify({captureHash:'capture',replacements:[]}))
  const candidate=[{...original[0],name:change?'WRONG_RAIL':'GND'},...['inner1','inner3','inner5'].map(layer=>({type:'pcb_copper_pour',pcb_copper_pour_id:layer,layer})),{type:'source_trace',source_trace_id:'new_explicit_join',connected_source_net_ids:['rail']}]
  const path=join(dir,'candidate.circuit.json');writeFileSync(path,JSON.stringify(candidate))
  writeFileSync(join(dir,'report.json'),JSON.stringify({captureHash:'capture',hostTracesSha256:hash([]),dropReplacementsSha256:hash([]),aliases:{},physical:{errors:[],violations:[],angles:{valid:true},joinedBends:[]}}))
  return await loadDdrSupportRoutingContext(dir,path,original,[],'capture')
 }finally{rmSync(dir,{recursive:true,force:true})}
}
test('support context permits appended explicit joins while preserving original netlist',async()=>{
 expect((await fixture(false)).fixed.some((e:any)=>e.source_trace_id==='new_explicit_join')).toBe(true)
})
test('same copper cannot conceal modification to original rail identity',async()=>{
 await expect(fixture(true)).rejects.toThrow('undeclared original')
})