SERVER-39418 Ban atClusterTime with enableMajorityReadConcern=false

1 files changed, 19 insertions, 1 deletions

diff --git a/jstests/noPassthrough/readConcern_atClusterTime.js b/jstests/noPassthrough/readConcern_atClusterTime.js
index b2e5b6ac9f8..ec38d6d776a 100644
--- a/jstests/noPassthrough/readConcern_atClusterTime.js
+++ b/jstests/noPassthrough/readConcern_atClusterTime.js
@@ -2,7 +2,7 @@
 //
 // Only run this test with the WiredTiger storage engine, since we expect other storage engines to
 // return early because they do not support snapshot read concern.
-// @tags: [requires_wiredtiger, uses_transactions]
+// @tags: [requires_wiredtiger, uses_transactions, uses_atclustertime]
 
 function _getClusterTime(rst) {
     const pingRes = assert.commandWorked(rst.getPrimary().adminCommand({ping: 1}));
@@ -149,4 +149,22 @@ function _getClusterTime(rst) {
         rst.stopSet();
     }
 
+    // readConcern with 'atClusterTime' is not allowed when enableMajorityReadConcern=false.
+    {
+        let rst = new ReplSetTest({nodes: [{"enableMajorityReadConcern": "false"}]});
+        rst.startSet();
+        rst.initiate();
+        let session =
+            rst.getPrimary().getDB(dbName).getMongo().startSession({causalConsistency: false});
+        let sessionDb = session.getDatabase(dbName);
+        session.startTransaction(
+            {readConcern: {level: "snapshot", atClusterTime: _getClusterTime(rst)}});
+        assert.commandFailedWithCode(sessionDb.runCommand({find: collName}),
+                                     ErrorCodes.InvalidOptions);
+        assert.commandFailedWithCode(session.abortTransaction_forTesting(),
+                                     ErrorCodes.NoSuchTransaction);
+        session.endSession();
+        rst.stopSet();
+    }
+
 }());