1 files changed, 79 insertions, 0 deletions
diff --git a/jstests/sharding/autosplit.js b/jstests/sharding/autosplit.js
new file mode 100644
index 00000000000..8786e05a646
--- /dev/null
+++ b/jstests/sharding/autosplit.js
@@ -0,0 +1,79 @@
+(function() {
+
+    var s = new ShardingTest({name: "auto1", shards: 2, mongos: 1, other: {enableAutoSplit: true}});
+
+    s.adminCommand({enablesharding: "test"});
+    s.ensurePrimaryShard('test', 'shard0001');
+    s.adminCommand({shardcollection: "test.foo", key: {num: 1}});
+
+    bigString = "";
+    while (bigString.length < 1024 * 50)
+        bigString += "asocsancdnsjfnsdnfsjdhfasdfasdfasdfnsadofnsadlkfnsaldknfsad";
+
+    db = s.getDB("test");
+    coll = db.foo;
+
+    var i = 0;
+
+    var bulk = coll.initializeUnorderedBulkOp();
+    for (; i < 100; i++) {
+        bulk.insert({num: i, s: bigString});
+    }
+    assert.writeOK(bulk.execute());
+
+    primary = s.getServer("test").getDB("test");
+
+    counts = [];
+
+    s.printChunks();
+    counts.push(s.config.chunks.count());
+    assert.eq(100, db.foo.find().itcount());
+
+    print("datasize: " +
+          tojson(s.getServer("test").getDB("admin").runCommand({datasize: "test.foo"})));
+
+    bulk = coll.initializeUnorderedBulkOp();
+    for (; i < 200; i++) {
+        bulk.insert({num: i, s: bigString});
+    }
+    assert.writeOK(bulk.execute());
+
+    s.printChunks();
+    s.printChangeLog();
+    counts.push(s.config.chunks.count());
+
+    bulk = coll.initializeUnorderedBulkOp();
+    for (; i < 400; i++) {
+        bulk.insert({num: i, s: bigString});
+    }
+    assert.writeOK(bulk.execute());
+
+    s.printChunks();
+    s.printChangeLog();
+    counts.push(s.config.chunks.count());
+
+    bulk = coll.initializeUnorderedBulkOp();
+    for (; i < 700; i++) {
+        bulk.insert({num: i, s: bigString});
+    }
+    assert.writeOK(bulk.execute());
+
+    s.printChunks();
+    s.printChangeLog();
+    counts.push(s.config.chunks.count());
+
+    assert(counts[counts.length - 1] > counts[0], "counts 1 : " + tojson(counts));
+    sorted = counts.slice(0);
+    // Sort doesn't sort numbers correctly by default, resulting in fail
+    sorted.sort(function(a, b) {
+        return a - b;
+    });
+    assert.eq(counts, sorted, "counts 2 : " + tojson(counts));
+
+    print(counts);
+
+    printjson(db.stats());
+
+    s.stop();
+
+})();