SERVER-24550 Error out when db.createUser() is used with wrong syntax

1 files changed, 11 insertions, 1 deletions

diff --git a/jstests/core/user_management_helpers.js b/jstests/core/user_management_helpers.js
index 4db373a1def..5069d6dac74 100644
--- a/jstests/core/user_management_helpers.js
+++ b/jstests/core/user_management_helpers.js
@@ -102,6 +102,16 @@ function runTest(db) {
     db.updateUser('user2', {pwd: 'y', passwordDigestor: 'client'});
     assert(db.auth('user1', 'y'));
     assert(db.auth('user2', 'y'));
+
+    // Test createUser requires 'user' field
+    assert.throws(function() {
+        db.createUser({pwd: 'x', roles: ['dbAdmin']});
+    });
+
+    // Test createUser disallows 'createUser' field
+    assert.throws(function() {
+        db.createUser({createUser: 'ben', pwd: 'x', roles: ['dbAdmin']});
+    });
 }
 
 try {
@@ -110,4 +120,4 @@ try {
     // BF-836 Print current users on failure to aid debugging
     db.getSiblingDB('admin').system.users.find().forEach(printjson);
     throw x;
-}
\ No newline at end of file
+}