Ef7 query test

Ef7Tests.cs

using System;
using System.Linq;
using Microsoft.Data.Entity;

namespace Ef7Tests
{
    internal class Program
    {
        /// <summary>
        /// <para /> Nuget packages:
        /// <para /> * Install-Package EntityFramework.MicrosoftSqlServer -Pre
        /// <para /> * Install-Package EntityFramework.Commands -Pre
        /// <para /> Create database:
        /// <para /> * Add-Migration EfMultipleV1 
        /// <para /> * Update-Database
        /// </summary>
        private static void Main(string[] args)
        {

            //test 1
            using (var ctx = new MultipleContext())
            {
                foreach (var count in new[] { 1, 3, 10, 30, 100, 300, 1000, 3000 })
                {
                    foreach (var multiple in Enumerable.Range(1, count))
                    {
                        ctx.Multiples.Add(new Multiple { Counter = multiple, Name = $"Single Insert Set: {count}" });
                    }
                    ctx.SaveChanges();
                }

                foreach (var count in new[] { 1, 3, 10, 30, 100, 300, 1000, 3000 })
                {
                    var multiples = Enumerable.Range(1, count)
                        .Select(multiple => new Multiple {Counter = multiple, Name = $"Multiple Insert Set: {count}"});
                    ctx.Multiples.AddRange(multiples);
                    
                    ctx.SaveChanges();
                }
            }
        }

        public class MultipleContext : DbContext
        {
            public DbSet<Multiple> Multiples { get; set; }

            protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
            {
                optionsBuilder.UseSqlServer(
                    @"Server=(local);Database=EF7.ConsoleTests;Trusted_Connection=True;");
            }

            protected override void OnModelCreating(ModelBuilder modelBuilder)
            {
                modelBuilder.Entity<Multiple>().Property(o => o.Added).HasDefaultValueSql("getutcdate()");
                modelBuilder.Entity<Multiple>().Property(o => o.Counter).IsRequired();
            }
        }

        public class Multiple
        {
            public int Id { get; set; }
            public int Counter { get; set; }
            public string Name { get; set; }
            public DateTime Added { get; set; }
        }
    }
}