text: t = db.jstests_nin;
  t.drop();
  
  function checkEqual(name, key, value) {
      var o = {};
      o[key] = {$in: [value]};
      var i = t.find(o).count();
      o[key] = {$nin: [value]};
      var n = t.find(o).count();
  
      assert.eq(t.find().count(),
                i + n,
                "checkEqual " + name + " $in + $nin != total | " + i + " + " + n + " != " +
                    t.find().count());
  }
  
  doTest = function(n) {
  
      t.save({a: [1, 2, 3]});
      t.save({a: [1, 2, 4]});
      t.save({a: [1, 8, 5]});
      t.save({a: [1, 8, 6]});
      t.save({a: [1, 9, 7]});
  
      assert.eq(5, t.find({a: {$nin: [10]}}).count(), n + " A");
      assert.eq(0, t.find({a: {$ne: 1}}).count(), n + " B");
      assert.eq(0, t.find({a: {$nin: [1]}}).count(), n + " C");
      assert.eq(0, t.find({a: {$nin: [1, 2]}}).count(), n + " D");
      assert.eq(3, t.find({a: {$nin: [2]}}).count(), n + " E");
      assert.eq(3, t.find({a: {$nin: [8]}}).count(), n + " F");
      assert.eq(4, t.find({a: {$nin: [9]}}).count(), n + " G");
      assert.eq(4, t.find({a: {$nin: [3]}}).count(), n + " H");
      assert.eq(3, t.find({a: {$nin: [2, 3]}}).count(), n + " I");
      assert.eq(1, t.find({a: {$ne: 8, $nin: [2, 3]}}).count(), n + " I2");
  
      checkEqual(n + " A", "a", 5);
  
      t.save({a: [2, 2]});
      assert.eq(3, t.find({a: {$nin: [2, 2]}}).count(), n + " J");
  
      t.save({a: [[2]]});
      assert.eq(4, t.find({a: {$nin: [2]}}).count(), n + " K");
  
      t.save({a: [{b: [10, 11]}, 11]});
      checkEqual(n + " B", "a", 5);
      checkEqual(n + " C", "a.b", 5);
  
      assert.eq(7, t.find({'a.b': {$nin: [10]}}).count(), n + " L");
      assert.eq(7, t.find({'a.b': {$nin: [[10, 11]]}}).count(), n + " M");
      assert.eq(7, t.find({a: {$nin: [11]}}).count(), n + " N");
  
      t.save({a: {b: [20, 30]}});
      assert.eq(1, t.find({'a.b': {$all: [20]}}).count(), n + " O");
      assert.eq(1, t.find({'a.b': {$all: [20, 30]}}).count(), n + " P");
  };
  
  doTest("no index");
  t.drop();
  t.ensureIndex({a: 1});
  doTest("with index");
  