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/**
* Test that we can't call prepareTransaction if there isn't an active transaction on the session.
*
* @tags: [uses_transactions, uses_prepare_transaction]
*/
(function() {
"use strict";
load("jstests/core/txns/libs/prepare_helpers.js");
const dbName = "test";
const collName = "ensure_active_txn_for_prepare_transaction";
const testDB = db.getSiblingDB(dbName);
const testColl = testDB.getCollection(collName);
testDB.runCommand({drop: collName, writeConcern: {w: "majority"}});
assert.commandWorked(testDB.runCommand({create: collName, writeConcern: {w: "majority"}}));
const session = db.getMongo().startSession({causalConsistency: false});
const sessionDB = session.getDatabase(dbName);
const sessionColl = sessionDB.getCollection(collName);
jsTestLog("Test that we can't call prepareTransaction if there was never a transaction on " +
"the session");
assert.commandFailedWithCode(
sessionDB.adminCommand(
{prepareTransaction: 1, txnNumber: NumberLong(0), stmtId: NumberInt(1), autocommit: false}),
ErrorCodes.NoSuchTransaction);
jsTestLog("Test that we can't call prepareTransaction if the most recent transaction was aborted");
session.startTransaction();
assert.commandWorked(sessionColl.insert({_id: 1}));
assert.commandWorked(session.abortTransaction_forTesting());
assert.commandFailedWithCode(
sessionDB.adminCommand(
{prepareTransaction: 1, txnNumber: NumberLong(0), stmtId: NumberInt(1), autocommit: false}),
ErrorCodes.NoSuchTransaction);
jsTestLog(
"Test that we can't call prepareTransaction if the most recent transaction was committed");
session.startTransaction();
assert.commandWorked(sessionColl.insert({_id: 1}));
assert.commandWorked(session.commitTransaction_forTesting());
assert.commandFailedWithCode(
sessionDB.adminCommand(
{prepareTransaction: 1, txnNumber: NumberLong(1), stmtId: NumberInt(1), autocommit: false}),
ErrorCodes.TransactionCommitted);
session.endSession();
}());
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