anchor.diff:  
   Future testIndexCreation() async {
     for (int n = 0; n < 6; n++) {
  -    collection.insert({
  +    await collection.insert({
         'a': n,
         'embedded': {'b': n, 'c': n * 10}
       });
  
positive.code: 
  Future testCompoundQuery() async {
    for (var n = 0; n < 10; n++) {
      collection.insert({"my_field": n, "str_field": "str_$n"});
    }
    var result = await collection
        .find(where.gt("my_field", 8).or(where.lt('my_field', 2)))
  
negative.code: }
  
  Future testAuthenticationWithUri() async {
    await collection.insert({"a": 1});
    await collection.insert({"a": 2});
    await collection.insert({"a": 3});
  
    var foundValue = await collection.findOne();
  
  