test: use common.mustCall in test-http-malformed-request

PR-URL: #17439 Reviewed-By: Anatoli Papirovski <[email protected]> Reviewed-By: Jon Moss <[email protected]> Reviewed-By: Tobias Nießen <[email protected]> Reviewed-By: Luigi Pinca <[email protected]> Reviewed-By: James M Snell <[email protected]>

Author: mithunsasidharan

test/parallel/test-http-malformed-request.js

@@ -1,25 +1,20 @@
 'use strict';
-require('../common');
-constassert=require('assert');
+constcommon=require('../common');
 constnet=require('net');
 consthttp=require('http');
 consturl=require('url');
 
 // Make sure no exceptions are thrown when receiving malformed HTTP
 // requests.
-
-letnrequests_completed=0;
-constnrequests_expected=1;
-
-constserver=http.createServer(function(req,res){
+constserver=http.createServer(common.mustCall((req,res)=>{
 console.log(`req: ${JSON.stringify(url.parse(req.url))}`);
 
 res.writeHead(200,{'Content-Type': 'text/plain'});
 res.write('Hello World');
 res.end();
 
-if(++nrequests_completed===nrequests_expected)server.close();
-});
+server.close();
+}));
 server.listen(0);
 
 server.on('listening',function(){
@@ -29,7 +24,3 @@ server.on('listening', function(){
 c.end();
 });
 });
-
-process.on('exit',function(){
-assert.strictEqual(nrequests_expected,nrequests_completed);
-});