test: deflake test-esm-loader-resolve-type

PR-URL: #50273 Backport-PR-URL: #50669Fixes: #50040 Reviewed-By: Michaël Zasso <[email protected]> Reviewed-By: Michael Dawson <[email protected]> Reviewed-By: Marco Ippolito <[email protected]> Reviewed-By: Richard Lau <[email protected]>

Author: aduh95

test/fixtures/es-module-loaders/hook-resolve-type-loader.mjs

@@ -1,17 +1,24 @@
-/** @type{MessagePort} */
-letport;
-exportfunctioninitialize(data){
-port=data.port;
+/** @type{Uint8Array} */
+letdata;
+/** @type{number} */
+letESM_MODULE_INDEX;
+/** @type{number} */
+letCJS_MODULE_INDEX;
+
+exportfunctioninitialize({ sab,ESM_MODULE_INDEX:e,CJS_MODULE_INDEX:c}){
+data=newUint8Array(sab);
+ESM_MODULE_INDEX=e;
+CJS_MODULE_INDEX=c;
 }
 
 exportasyncfunctionresolve(specifier,context,next){
 constnextResult=awaitnext(specifier,context);
 const{ format }=nextResult;
 
 if(format==='module'||specifier.endsWith('.mjs')){
-port.postMessage({type: 'module'});
+Atomics.add(data,ESM_MODULE_INDEX,1);
 }elseif(format==null||format==='commonjs'){
-port.postMessage({type: 'commonjs'});
+Atomics.add(data,CJS_MODULE_INDEX,1);
 }
 
 returnnextResult;

test/fixtures/es-module-loaders/hook-resolve-type.mjs

@@ -1,30 +1,18 @@
 import*asfixturesfrom'../../common/fixtures.mjs';
 import{register}from'node:module';
-import{MessageChannel}from'node:worker_threads';
 
-letimportedESM=0;
-letimportedCJS=0;
+constsab=newSharedArrayBuffer(2);
+constdata=newUint8Array(sab);
+
+constESM_MODULE_INDEX=0
+constCJS_MODULE_INDEX=1
+
 exportfunctiongetModuleTypeStats(){
+constimportedESM=Atomics.load(data,ESM_MODULE_INDEX);
+constimportedCJS=Atomics.load(data,CJS_MODULE_INDEX);
 return{ importedESM, importedCJS };
-};
-
-const{ port1, port2 }=newMessageChannel();
+}
 
 register(fixtures.fileURL('es-module-loaders/hook-resolve-type-loader.mjs'),{
-data: {port: port2},
-transferList: [port2],
+data: { sab,ESM_MODULE_INDEX,CJS_MODULE_INDEX},
 });
-
-port1.on('message',({ type })=>{
-switch(type){
-case'module':
-importedESM++;
-break;
-case'commonjs':
-importedCJS++;
-break;
-}
-});
-
-port1.unref();
-port2.unref();