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// Test to make sure that tag ranges get split when partial keys are used for the tag ranges
(function() {
'use strict';
var s = new ShardingTest({shards: 2, mongos: 1});
assert.commandWorked(s.s0.adminCommand({enablesharding: "test"}));
s.ensurePrimaryShard('test', 'shard0001');
assert.commandWorked(s.s0.adminCommand({shardcollection: "test.foo", key: {_id: 1, a: 1}}));
assert.eq(1, s.config.chunks.count());
s.addShardTag("shard0000", "a");
s.addShardTag("shard0000", "b");
s.addTagRange("test.foo", {_id: 5}, {_id: 10}, "a");
s.addTagRange("test.foo", {_id: 10}, {_id: 15}, "b");
// Start the balancer and wait for it to do one round, which should split the chunks
// appropriately
s.startBalancer();
s.awaitBalancerRound();
s.stopBalancer();
s.printShardingStatus();
assert.eq(3, s.config.chunks.count(), 'Split did not occur.');
s.config.chunks.find().forEach(function(chunk) {
var numFields = 0;
for (var x in chunk.min) {
numFields++;
assert(x == "_id" || x == "a", tojson(chunk));
}
assert.eq(2, numFields, tojson(chunk));
});
// Check chunk mins correspond exactly to tag range boundaries, extended to match shard key
assert.eq(
1, s.config.chunks.find({min: {_id: 5, a: MinKey}}).count(), "bad chunk range boundary");
assert.eq(
1, s.config.chunks.find({min: {_id: 10, a: MinKey}}).count(), "bad chunk range boundary");
s.stop();
})();
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