public async Task Delete_Object_Success()
{
MongoService repo = new MongoService(_mongoFixture.MongoClient, _mongoFixture.Logger, new Dictionary <string, HashSet <string> >());
string json = "{ \"Name\" : \"Maria\" }";
var insertResult = await repo.InsertAsync("bookstore", "users", "3", json);
var getResult = await repo.GetAsync("bookstore", "users", "3");
var deleteResult = await repo.DeleteAsync("bookstore", "users", "3");
var getResultAfterDelete = await repo.GetAsync("bookstore", "users", "3");
Assert.Null(getResultAfterDelete);
Assert.True(deleteResult);
}