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path: root/jstests/sharding/ssv_config_check.js
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/**
 * Test that setShardVersion should not reject a configdb string with the same
 * replica set name, but with a member list that is not strictly the same.
 */
(function() {
    "use strict";

    var st = new ShardingTest({shards: 1});

    var testDB = st.s.getDB('test');
    testDB.adminCommand({enableSharding: 'test'});
    testDB.adminCommand({shardCollection: 'test.user', key: {x: 1}});

    // Initialize version on shard.
    testDB.user.insert({x: 1});

    var directConn = new Mongo(st.d0.host);
    var adminDB = directConn.getDB('admin');

    var configStr = adminDB.runCommand({getShardVersion: 'test.user'}).configServer;
    var alternateConfigStr = configStr.substring(0, configStr.lastIndexOf(','));

    var shardDoc = st.s.getDB('config').shards.findOne();

    assert.commandWorked(adminDB.runCommand({
        setShardVersion: '',
        init: true,
        authoritative: true,
        configdb: alternateConfigStr,
        shard: shardDoc._id,
        shardHost: shardDoc.host
    }));

    assert.commandFailed(adminDB.runCommand({
        setShardVersion: '',
        init: true,
        authoritative: true,
        configdb: 'bad-rs/local:12,local:34',
        shard: shardDoc._id,
        shardHost: shardDoc.host
    }));

    var configAdmin = st.c0.getDB('admin');
    // Initialize internal config string.
    assert.commandWorked(configAdmin.runCommand({
        setShardVersion: '',
        init: true,
        authoritative: true,
        configdb: configStr,
        shard: 'config'
    }));

    // Passing configdb that does not match initialized value is not ok.
    assert.commandFailed(configAdmin.runCommand({
        setShardVersion: '',
        init: true,
        authoritative: true,
        configdb: 'bad-rs/local:12,local:34',
        shard: 'config'
    }));

    // Passing configdb that matches initialized value is ok.
    assert.commandWorked(configAdmin.runCommand({
        setShardVersion: '',
        init: true,
        authoritative: true,
        configdb: alternateConfigStr,
        shard: 'config'
    }));

    st.stop();
})();