test: apply test-http2-max-session-memory-leak from v12.x

Refs: #27914
Backport-PR-URL: #29124
PR-URL: #29122
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

Author: addaleax

test/parallel/test-http2-max-session-memory-leak.js

@@ -0,0 +1,46 @@
+'use strict';
+constcommon=require('../common');
+if(!common.hasCrypto)
+common.skip('missing crypto');
+consthttp2=require('http2');
+
+// Regression test for https://github.com/nodejs/node/issues/27416.
+// Check that received data is accounted for correctly in the maxSessionMemory
+// mechanism.
+
+constbodyLength=8192;
+constmaxSessionMemory=1;// 1 MB
+constrequestCount=1000;
+
+constserver=http2.createServer({ maxSessionMemory });
+server.on('stream',(stream)=>{
+stream.respond();
+stream.end();
+});
+
+server.listen(common.mustCall(()=>{
+constclient=http2.connect(`http://localhost:${server.address().port}`,{
+ maxSessionMemory
+});
+
+functionrequest(){
+returnnewPromise((resolve,reject)=>{
+conststream=client.request({
+':method': 'POST',
+'content-length': bodyLength
+});
+stream.on('error',reject);
+stream.on('response',resolve);
+stream.end('a'.repeat(bodyLength));
+});
+}
+
+(async()=>{
+for(leti=0;i<requestCount;i++){
+awaitrequest();
+}
+
+client.close();
+server.close();
+})().then(common.mustCall());
+}));