65 lines
2.1 KiB
JavaScript
65 lines
2.1 KiB
JavaScript
//
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// Basic tests for mergeChunks
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//
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(function() {
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'use strict';
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var st = new ShardingTest({mongos:1, shards:2});
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var mongos = st.s0;
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var kDbName = 'db';
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var shards = mongos.getCollection('config.shards').find().toArray();
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var shard0 = shards[0]._id;
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var shard1 = shards[1]._id;
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var ns = kDbName + ".foo";
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assert.commandWorked(mongos.adminCommand({enableSharding : kDbName}));
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st.ensurePrimaryShard(kDbName, shard0);
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// Fail if invalid namespace.
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assert.commandFailed(mongos.adminCommand({mergeChunks: '', bounds: [ {a: -1}, {a: 1} ]}));
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// Fail if database does not exist.
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assert.commandFailed(mongos.adminCommand({mergeChunks: 'a.b', bounds: [ {a: -1}, {a: 1} ]}));
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// Fail if collection is unsharded.
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assert.commandFailed(mongos.adminCommand({mergeChunks: kDbName + '.xxx',
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bounds: [ {a: -1}, {a: 1} ]}));
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// Errors if either bounds is not a valid shard key.
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assert.eq(0, mongos.getDB('config').chunks.count({ns: ns}));
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assert.commandWorked(mongos.adminCommand({shardCollection: ns, key: {a: 1}}));
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assert.eq(1, mongos.getDB('config').chunks.count({ns: ns}));
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assert.commandWorked(mongos.adminCommand({split: ns, middle: {a: 0}}));
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assert.commandWorked(mongos.adminCommand({split: ns, middle: {a: -1}}));
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assert.commandWorked(mongos.adminCommand({split: ns, middle: {a: 1}}));
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assert.commandFailed(mongos.adminCommand({mergeChunks: ns,
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bounds: [ {x: -1}, {a: 1} ]}));
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// Fail if a wrong key.
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assert.commandFailed(mongos.adminCommand({mergeChunks: ns,
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bounds: [ {a: -1}, {x: 1} ]}));
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// Fail if chunks do not contain a bound.
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assert.commandFailed(mongos.adminCommand({mergeChunks: ns, bounds: [{a: -1}, {a: 10}]}));
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// Validate metadata.
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// There are four chunks [{$minKey, -1}, {-1, 0}, {0, 1}, {1, $maxKey}]
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assert.eq(4, mongos.getDB('config').chunks.count({ns: ns}));
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assert.commandWorked(mongos.adminCommand({mergeChunks: ns, bounds: [{a: -1}, {a: 1}]}));
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assert.eq(3, mongos.getDB('config').chunks.count({ns: ns}));
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assert.eq(1, mongos.getDB('config').chunks.count({ns: ns, min: {a: -1}, max: {a: 1}}));
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st.stop();
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})()
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