txn test fix 2

Author: aditi-khare-mongoDB

test/integration/node-specific/client_close.test.ts

@@ -427,7 +427,7 @@ describe('MongoClient.close() Integration', () => {
         const metadata: MongoDBMetadataUI = { requires: { topology: 'sharded' } };
 
         describe('after SRVPoller is created', () => {
-          it.skip('timers are cleaned up by client.close()', metadata, async () => {
+          it('timers are cleaned up by client.close()', metadata, async () => {
             const run = async function ({ MongoClient, expect, getTimerCount }) {
               const SRV_CONNECTION_STRING = `mongodb+srv://test1.test.build.10gen.cc`;
               // 27018 localhost.test.build.10gen.cc.
@@ -455,14 +455,19 @@ describe('MongoClient.close() Integration', () => {
     let utilClient;
     let session;
 
-    const metadata: MongoDBMetadataUI = { requires: { topology: ['replicaset', 'sharded'] } };
+    const metadata: MongoDBMetadataUI = {
+      requires: {
+        topology: ['replicaset', 'sharded'],
+        mongodb: '>=5.0' // currentOp requires 5.0 and above
+      }
+    };
 
     beforeEach(async function () {
       client = this.configuration.newClient();
       utilClient = this.configuration.newClient();
       await client.connect();
-      session = client.startSession({ explicit: false });
       const collection = client.db('db').collection('collection');
+      session = client.startSession({ explicit: false });
       session.startTransaction();
       await collection.insertOne({ x: 1 }, { session });
 
@@ -523,8 +528,8 @@ describe('MongoClient.close() Integration', () => {
       client = this.configuration.newClient();
       utilClient = this.configuration.newClient();
       await client.connect();
-      session = client.startSession();
       const collection = client.db('db').collection('collection');
+      session = client.startSession();
       session.startTransaction();
       await collection.insertOne({ x: 1 }, { session });
 
@@ -693,7 +698,7 @@ describe('MongoClient.close() Integration', () => {
         await cursor?.close();
       });
 
-      it('all active server-side cursors are closed by client.close()', async function () {
+      it.skip('all active server-side cursors are closed by client.close()', async function () {
         const getCursors = async () => {
           const res = await utilClient
             .db()