getMore requests do not use a session in the mongo shell

/** * Tests that "getMore" commands use the same session id as the original "find" command when a * cursor is created in the mongo shell. */ ( function () { "use strict" ;   load( "jstests/libs/parallelTester.js" );   const conn = MongoRunner.runMongod({});   const db = conn.startSession().getDatabase( "test" ); const coll = db.repro_nosession_getmore;   const insertRes = coll.insert([{}, {}, {}, {}, {}]); assert.writeOK(insertRes); assert.eq(5, insertRes.nInserted);   const triggeredFind = new CountDownLatch(1); const triggerGetMore = new CountDownLatch(1);   function runFindAndThenGetMore(host, triggeredFind, triggerGetMore) { try { const conn = new Mongo(host); const db = conn.startSession().getDatabase( "test" ); const coll = db.repro_nosession_getmore;   const cursor = coll.find().batchSize(2); cursor.next(); cursor.next();   triggeredFind.countDown(); triggerGetMore.await();   cursor.next(); return {ok: 1}; } catch (e) { return {ok: 0, error: e.toString(), stack: e.stack}; } }   assert.commandWorked(conn.adminCommand({setParameter: 1, internalQueryExecYieldIterations: 1})); assert.commandWorked( conn.adminCommand({configureFailPoint: "setYieldAllLocksHang" , mode: "alwaysOn" }));   // // Run a "find" command and verify that it has a session id. //   const cursorThread = new ScopedThread(runFindAndThenGetMore, conn.host, triggeredFind, triggerGetMore); cursorThread.start();   let op; let currentOpRes;   assert.soon( function () { currentOpRes = assert.commandWorked(db.currentOp({ns: coll.getFullName()})); if (currentOpRes.inprog.length === 1 && currentOpRes.inprog[0].numYields > 0) { op = currentOpRes.inprog[0]; return true ; } return false ; }, function () { return "Failed to find operation in currentOp() output: " + tojson(currentOpRes); });   assert(op.hasOwnProperty( "lsid" ), "Expected 'find' command to have a session id: " + tojson(op)); const sessionId = op.lsid;   // Disable the failpoint and wait until 'cursorThread' has consumed the documents returned in // the "find" command's initial batch. assert.commandWorked( conn.adminCommand({configureFailPoint: "setYieldAllLocksHang" , mode: "off" }));   triggeredFind.await();   assert.commandWorked( conn.adminCommand({configureFailPoint: "setYieldAllLocksHang" , mode: "alwaysOn" }));   triggerGetMore.countDown();   // // Run a "getMore" command and verify that it has the same session id as the "find" command. //   assert.soon( function () { currentOpRes = assert.commandWorked(db.currentOp({ns: coll.getFullName()})); if (currentOpRes.inprog.length === 1 && currentOpRes.inprog[0].numYields > 0) { op = currentOpRes.inprog[0]; return true ; } return false ; }, function () { return "Failed to find operation in currentOp() output: " + tojson(currentOpRes); });   assert.eq(sessionId, op.lsid, "Expected 'getMore' command to have the same session id: " + tojson(op));   // Disable the failpoint and wait for 'cursorThread' to exit. assert.commandWorked( conn.adminCommand({configureFailPoint: "setYieldAllLocksHang" , mode: "off" }));   cursorThread.join(); assert.commandWorked(cursorThread.returnData());   MongoRunner.stopMongod(conn); })();