text: 
  var coll = "numbers";
  
  db[coll].drop();
  for (i = 0; i < 100; i++) {
      db[coll].save({_id: i, mod: [i % 2, i % 3, i % 5]});
  }
  
  print("-----LIMIT-----");
  
  print("normal limit");
  var doc = db.runCommand({aggregate: coll, pipeline: [{$limit: 2}]});
  assert.eq(doc.result.length, 2, tojson(doc));
  
  print("limit larger than result size");
  doc = db.runCommand({aggregate: coll, pipeline: [{$limit: 200}]});
  assert.eq(doc.result.length, 100, tojson(doc));
  
  print("limit on sort");
  doc = db.runCommand({aggregate: coll, pipeline: [{$sort: {_id: -1}}, {$limit: 3}]});
  r = doc.result;
  assert.eq(doc.result.length, 3);
  for (var i = 0; i < r; i++) {
      assert.eq(100 - r[i]._id, i, tojson(doc));
  }
  
  print("TODO: invalid limit");  // once assert has been replaced with uassert
  
  print("-----SKIP------");
  
  print("normal skip");
  doc = db.runCommand({aggregate: coll, pipeline: [{$skip: 95}]});
  assert.eq(doc.result.length, 5, tojson(doc));
  
  print("skip larger than result size");
  doc = db.runCommand({aggregate: coll, pipeline: [{$skip: 102}]});
  assert.eq(doc.result.length, 0, tojson(doc));
  
  print("check skip results");
  doc = db.runCommand({aggregate: coll, pipeline: [{$sort: {_id: 1}}, {$skip: 6}, {$limit: 3}]});
  assert.eq(doc.result.length, 3, tojson(doc));
  for (var i = 0; i < 3; i++) {
      assert.eq(i + 6, doc.result[i]._id, tojson(doc));
  }
  
  print("TODO: invalid skip");  // once assert has been replaced with uassert
  
  print("on virtual collection");
  doc = db.runCommand({
      aggregate: coll,
      pipeline: [
          {$unwind: "$mod"},
          {$project: {m: "$mod"}},
          {$sort: {m: 1, _id: -1}},
          {$skip: 150},
          {$limit: 5}
      ]
  });
  
  assert.eq(doc.result.length, 5);
  for (var i = 0; i < 5; i++) {
      assert.eq(1, doc.result[i].m, tojson(doc));
  }
  assert.eq(doc.result[0]._id, 55, tojson(doc));
  assert.eq(doc.result[1]._id, 53, tojson(doc));
  assert.eq(doc.result[2]._id, 52, tojson(doc));
  assert.eq(doc.result[3]._id, 51, tojson(doc));
  assert.eq(doc.result[4]._id, 51, tojson(doc));
  
  print("size 0 collection");
  db[coll].drop();
  
  doc = db.runCommand({aggregate: coll, pipeline: [{$skip: 6}]});
  assert.eq(doc.ok, 1);
  assert.eq(doc.result.length, 0);
  
  doc = db.runCommand({aggregate: coll, pipeline: [{$limit: 3}]});
  assert.eq(doc.ok, 1);
  assert.eq(doc.result.length, 0);
  