mongodb/jstests/sharding/not_allowed_on_sharded_collection_cmd.js

// Tests that commands that should not be runnable on sharded collections cannot be run on sharded
// collections.
import {ShardingTest} from "jstests/libs/shardingtest.js";

const st = new ShardingTest({shards: 2, mongos: 2});

const dbName = 'test';
const coll = 'foo';
const ns = dbName + '.' + coll;

const freshMongos = st.s0.getDB(dbName);
const staleMongos = st.s1.getDB(dbName);

assert.commandWorked(staleMongos.adminCommand({enableSharding: dbName}));
assert.commandWorked(freshMongos.adminCommand({shardCollection: ns, key: {_id: 1}}));

// Test that commands that should not be runnable on sharded collection do not work on sharded
// collections, using both fresh mongos and stale mongos instances.
assert.commandFailedWithCode(freshMongos.runCommand({convertToCapped: coll, size: 64 * 1024}),
                             ErrorCodes.NamespaceCannotBeSharded);
assert.commandFailedWithCode(staleMongos.runCommand({convertToCapped: coll, size: 32 * 1024}),
                             ErrorCodes.NamespaceCannotBeSharded);
assert(!freshMongos.getCollection(coll).isCapped());

st.stop();