1 files changed, 14 insertions, 2 deletions
diff --git a/jstests/sharding/index_commands_shard_targeting.js b/jstests/sharding/index_commands_shard_targeting.js
index c9f70fc8f50..d7a5f0d0c86 100644
--- a/jstests/sharding/index_commands_shard_targeting.js
+++ b/jstests/sharding/index_commands_shard_targeting.js
@@ -55,8 +55,7 @@ function assertCommandChecksShardVersions(st, dbName, collName, testCase) {
     // (no chunks).
     ShardVersioningUtil.assertCollectionVersionOlderThan(st.shard0, ns, latestCollectionVersion);
 
-    // Assert that the targeted shards have the latest collection version after the command is
-    // run.
+    // Assert that the targeted shards have the latest collection version after the command is run.
     ShardVersioningUtil.assertCollectionVersionEquals(st.shard1, ns, latestCollectionVersion);
     ShardVersioningUtil.assertCollectionVersionEquals(st.shard2, ns, latestCollectionVersion);
 }
@@ -181,6 +180,19 @@ const testCases = {
             }
         };
     },
+    collMod: collName => {
+        return {
+            command: {collMod: collName, validator: {x: {$type: "string"}}},
+            assertCommandRanOnShard: (shard) => {
+                assert.commandFailedWithCode(
+                    shard.getCollection(dbName + "." + collName).insert({x: 1}),
+                    ErrorCodes.DocumentValidationFailure);
+            },
+            assertCommandDidNotRunOnShard: (shard) => {
+                assert.commandWorked(shard.getCollection(dbName + "." + collName).insert({x: 1}));
+            }
+        };
+    },
 };
 
 assert.commandWorked(st.s.adminCommand({enableSharding: dbName}));