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//
// Basic tests for movePrimary.
//
(function() {
'use strict';
var st = new ShardingTest({mongos: 1, shards: 2});
var mongos = st.s0;
var kDbName = 'db';
var shard0 = st.shard0.shardName;
var shard1 = st.shard1.shardName;
assert.commandWorked(mongos.adminCommand({enableSharding: kDbName}));
st.ensurePrimaryShard(kDbName, shard0);
assert.eq(shard0, mongos.getDB('config').databases.findOne({_id: kDbName}).primary);
// Can run only against the admin database.
assert.commandFailedWithCode(mongos.getDB('test').runCommand({movePrimary: kDbName, to: shard0}),
ErrorCodes.Unauthorized);
// Can't movePrimary for 'config' database.
assert.commandFailed(mongos.adminCommand({movePrimary: 'config', to: shard0}));
// Can't movePrimary for 'local' database.
assert.commandFailed(mongos.adminCommand({movePrimary: 'local', to: shard0}));
// Can't movePrimary for 'admin' database.
assert.commandFailed(mongos.adminCommand({movePrimary: 'admin', to: shard0}));
// Can't movePrimary for invalid db name.
assert.commandFailed(mongos.adminCommand({movePrimary: 'a.b', to: shard0}));
assert.commandFailed(mongos.adminCommand({movePrimary: '', to: shard0}));
// Fail if 'to' shard does not exist or empty.
assert.commandFailed(mongos.adminCommand({movePrimary: kDbName, to: 'Unknown'}));
assert.commandFailed(mongos.adminCommand({movePrimary: kDbName, to: ''}));
assert.commandFailed(mongos.adminCommand({movePrimary: kDbName}));
let versionBeforeMovePrimary = mongos.getDB('config').databases.findOne({_id: kDbName}).version;
// Succeed if 'to' shard exists and verify metadata changes.
assert.eq(shard0, mongos.getDB('config').databases.findOne({_id: kDbName}).primary);
assert.commandWorked(mongos.adminCommand({movePrimary: kDbName, to: shard1}));
assert.eq(shard1, mongos.getDB('config').databases.findOne({_id: kDbName}).primary);
assert.eq(versionBeforeMovePrimary.lastMod + 1,
mongos.getDB('config').databases.findOne({_id: kDbName}).version.lastMod);
assert.eq(versionBeforeMovePrimary.uuid,
mongos.getDB('config').databases.findOne({_id: kDbName}).version.uuid);
// Succeed if 'to' shard is already the primary shard for the db.
assert.commandWorked(mongos.adminCommand({movePrimary: kDbName, to: shard1}));
assert.eq(shard1, mongos.getDB('config').databases.findOne({_id: kDbName}).primary);
// Verify the version doesn't change if the 'to' shard is already the primary shard.
assert.eq(versionBeforeMovePrimary.lastMod + 1,
mongos.getDB('config').databases.findOne({_id: kDbName}).version.lastMod);
assert.eq(versionBeforeMovePrimary.uuid,
mongos.getDB('config').databases.findOne({_id: kDbName}).version.uuid);
st.stop();
})();
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