fix: spelling, assertAlive always returns true

Author: nbbeeken

src/sessions.ts

@@ -45,20 +45,6 @@ import type { WriteConcern } from './write_concern';
 
 const minWireVersionForShardedTransactions = 8;
 
-function assertAlive(session: ClientSession, callback?: Callback): boolean {
-  if (session.serverSession == null) {
-    const error = new MongoExpiredSessionError();
-    if (typeof callback === 'function') {
-      callback(error);
-      return false;
-    }
-
-    throw error;
-  }
-
-  return true;
-}
-
 /** @public */
 export interface ClientSessionOptions {
   /** Whether causal consistency should be enabled on this session */
@@ -396,7 +382,6 @@ export class ClientSession extends TypedEventEmitter<ClientSessionEvents> {
       throw new MongoCompatibilityError('Transactions are not allowed with snapshot sessions');
     }
 
-    assertAlive(this);
     if (this.inTransaction()) {
       throw new MongoTransactionError('Transaction already in progress');
     }
@@ -657,11 +642,6 @@ function attemptTransaction<TSchema>(
 }
 
 function endTransaction(session: ClientSession, commandName: string, callback: Callback<Document>) {
-  if (!assertAlive(session, callback)) {
-    // checking result in case callback was called
-    return;
-  }
-
   // handle any initial problematic cases
   const txnState = session.transaction.state;
 

test/unit/sessions.test.ts

@@ -91,7 +91,7 @@ describe('Sessions - unit', function () {
       expect(session.clusterTime).to.eql(clusterTime);
     });
 
-    it('should not acquire a serverSession inside incrementTxnNumber', () => {
+    it('should not acquire a serverSession inside incrementTransactionNumber', () => {
       const client = new Topology(topologyHost, topologyOptions);
       const sessionPool = client.s.sessionPool;
       const session = new ClientSession(client, sessionPool, {});