test: try to stabalize test-child-process-fork-exec-path.js

PR-URL: #27277 Reviewed-By: Richard Lau <[email protected]> Reviewed-By: Joyee Cheung <[email protected]>

Author: refack

test/parallel/test-child-process-fork-exec-path.js

@@ -21,45 +21,41 @@
 
 'use strict';
 constcommon=require('../common');
+
+// Test that `fork()` respects the `execPath` option.
+
+consttmpdir=require('../common/tmpdir');
+const{ addLibraryPath }=require('../common/shared-lib-util');
 constassert=require('assert');
-constfs=require('fs');
-const{COPYFILE_FICLONE}=fs.constants;
 constpath=require('path');
-consttmpdir=require('../common/tmpdir');
+constfs=require('fs');
+const{ fork }=require('child_process');
+
 constmsg={test: 'this'};
 constnodePath=process.execPath;
 constcopyPath=path.join(tmpdir.path,'node-copy.exe');
-const{ addLibraryPath }=require('../common/shared-lib-util');
 
 addLibraryPath(process.env);
 
+// Child
 if(process.env.FORK){
-assert(process.send);
-assert.strictEqual(process.argv[0],copyPath);
+assert.strictEqual(process.execPath,copyPath);
+assert.ok(process.send);
 process.send(msg);
-process.exit();
-}else{
-tmpdir.refresh();
-try{
-fs.unlinkSync(copyPath);
-}catch(e){
-if(e.code!=='ENOENT')throwe;
-}
-fs.copyFileSync(nodePath,copyPath,COPYFILE_FICLONE);
-fs.chmodSync(copyPath,'0755');
-
-// slow but simple
-constenvCopy=JSON.parse(JSON.stringify(process.env));
-envCopy.FORK='true';
-constchild=require('child_process').fork(__filename,{
-execPath: copyPath,
-env: envCopy
-});
-child.on('message',common.mustCall(function(recv){
-assert.deepStrictEqual(msg,recv);
-}));
-child.on('exit',common.mustCall(function(code){
-fs.unlinkSync(copyPath);
-assert.strictEqual(code,0);
-}));
+returnprocess.exit();
 }
+
+// Parent
+tmpdir.refresh();
+assert.strictEqual(fs.existsSync(copyPath),false);
+fs.copyFileSync(nodePath,copyPath,fs.constants.COPYFILE_FICLONE);
+fs.chmodSync(copyPath,'0755');
+
+constenvCopy=Object.assign({},process.env,{'FORK': 'true'});
+constchild=fork(__filename,{execPath: copyPath,env: envCopy});
+child.on('message',common.mustCall(function(recv){
+assert.deepStrictEqual(recv,msg);
+}));
+child.on('exit',common.mustCall(function(code){
+assert.strictEqual(code,0);
+}));