1 files changed, 48 insertions, 46 deletions
diff --git a/jstests/core/txns/prepare_requires_fcv42.js b/jstests/core/txns/prepare_requires_fcv42.js
index a7be765a969..6f32918d332 100644
--- a/jstests/core/txns/prepare_requires_fcv42.js
+++ b/jstests/core/txns/prepare_requires_fcv42.js
@@ -4,54 +4,56 @@
  * @tags: [uses_transactions, uses_prepare_transaction]
  */
 (function() {
-    "use strict";
-    load("jstests/libs/feature_compatibility_version.js");
-    load("jstests/core/txns/libs/prepare_helpers.js");
-
-    const dbName = "test";
-    const collName = "prepare_requires_fcv42";
-    const testDB = db.getSiblingDB(dbName);
-    const adminDB = db.getSiblingDB('admin');
-
-    testDB[collName].drop({writeConcern: {w: "majority"}});
-    assert.commandWorked(testDB.runCommand({create: collName, writeConcern: {w: "majority"}}));
-
-    const sessionOptions = {causalConsistency: false};
-    const session = testDB.getMongo().startSession(sessionOptions);
-    const sessionDB = session.getDatabase(dbName);
-
-    try {
-        jsTestLog("Transaction succeeds in latest FCV.");
-        checkFCV(adminDB, latestFCV);
-        session.startTransaction();
-        assert.commandWorked(sessionDB[collName].insert({_id: "a"}));
-        let prepareTimestamp = PrepareHelpers.prepareTransaction(session);
-        assert.commandWorked(PrepareHelpers.commitTransaction(session, prepareTimestamp));
-
-        jsTestLog("Downgrade the featureCompatibilityVersion.");
-        assert.commandWorked(testDB.adminCommand({setFeatureCompatibilityVersion: lastStableFCV}));
-        checkFCV(adminDB, lastStableFCV);
-
-        jsTestLog("Transaction fails to prepare in last stable FCV.");
-        session.startTransaction();
-        assert.commandWorked(sessionDB[collName].insert({_id: "b"}));
-        assert.commandFailedWithCode(sessionDB.adminCommand({prepareTransaction: 1}),
-                                     ErrorCodes.CommandNotSupported);
-        // Abort the transaction in the shell.
-        assert.commandFailedWithCode(session.abortTransaction_forTesting(),
-                                     ErrorCodes.NoSuchTransaction);
-
-    } finally {
-        jsTestLog("Restore the original featureCompatibilityVersion.");
-        assert.commandWorked(testDB.adminCommand({setFeatureCompatibilityVersion: latestFCV}));
-        checkFCV(adminDB, latestFCV);
-    }
-
-    jsTestLog("Transaction succeeds in latest FCV after upgrade.");
+"use strict";
+load("jstests/libs/feature_compatibility_version.js");
+load("jstests/core/txns/libs/prepare_helpers.js");
+
+const dbName = "test";
+const collName = "prepare_requires_fcv42";
+const testDB = db.getSiblingDB(dbName);
+const adminDB = db.getSiblingDB('admin');
+
+testDB[collName].drop({writeConcern: {w: "majority"}});
+assert.commandWorked(testDB.runCommand({create: collName, writeConcern: {w: "majority"}}));
+
+const sessionOptions = {
+    causalConsistency: false
+};
+const session = testDB.getMongo().startSession(sessionOptions);
+const sessionDB = session.getDatabase(dbName);
+
+try {
+    jsTestLog("Transaction succeeds in latest FCV.");
+    checkFCV(adminDB, latestFCV);
     session.startTransaction();
-    assert.commandWorked(sessionDB[collName].insert({_id: "c"}));
+    assert.commandWorked(sessionDB[collName].insert({_id: "a"}));
     let prepareTimestamp = PrepareHelpers.prepareTransaction(session);
     assert.commandWorked(PrepareHelpers.commitTransaction(session, prepareTimestamp));
 
-    session.endSession();
+    jsTestLog("Downgrade the featureCompatibilityVersion.");
+    assert.commandWorked(testDB.adminCommand({setFeatureCompatibilityVersion: lastStableFCV}));
+    checkFCV(adminDB, lastStableFCV);
+
+    jsTestLog("Transaction fails to prepare in last stable FCV.");
+    session.startTransaction();
+    assert.commandWorked(sessionDB[collName].insert({_id: "b"}));
+    assert.commandFailedWithCode(sessionDB.adminCommand({prepareTransaction: 1}),
+                                 ErrorCodes.CommandNotSupported);
+    // Abort the transaction in the shell.
+    assert.commandFailedWithCode(session.abortTransaction_forTesting(),
+                                 ErrorCodes.NoSuchTransaction);
+
+} finally {
+    jsTestLog("Restore the original featureCompatibilityVersion.");
+    assert.commandWorked(testDB.adminCommand({setFeatureCompatibilityVersion: latestFCV}));
+    checkFCV(adminDB, latestFCV);
+}
+
+jsTestLog("Transaction succeeds in latest FCV after upgrade.");
+session.startTransaction();
+assert.commandWorked(sessionDB[collName].insert({_id: "c"}));
+let prepareTimestamp = PrepareHelpers.prepareTransaction(session);
+assert.commandWorked(PrepareHelpers.commitTransaction(session, prepareTimestamp));
+
+session.endSession();
 }());