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// This tests sharding an existing collection that both shards are aware of (SERVER-2828)
(function() {
'use strict';
var st = new ShardingTest({shards: 2, mongos: 2});
assert.commandWorked(st.s0.adminCommand({enablesharding: "test"}));
st.ensurePrimaryShard('test', st.shard1.shardName);
assert.commandWorked(st.s0.adminCommand({shardcollection: "test.foo", key: {num: 1}}));
assert.writeOK(st.s0.getDB('test').existing.insert({_id: 1}));
assert.eq(1, st.s0.getDB('test').existing.count({_id: 1}));
assert.eq(1, st.s1.getDB('test').existing.count({_id: 1}));
assert.commandWorked(st.s1.adminCommand({shardcollection: "test.existing", key: {_id: 1}}));
assert.eq(true, st.s1.getDB('test').existing.stats().sharded);
assert.commandWorked(st.s1.getDB("admin").runCommand({
moveChunk: "test.existing",
find: {_id: 1},
to: st.getOther(st.getPrimaryShard("test")).name
}));
assert.eq(1, st.s0.getDB('test').existing.count({_id: 1}));
assert.eq(1, st.s1.getDB('test').existing.count({_id: 1}));
st.stop();
})();
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