public MigrationsSqlServerFixture()
        {
            _serviceProvider = new ServiceCollection()
                .AddEntityFramework()
                .AddSqlServer()
                .ServiceCollection()
                .BuildServiceProvider();

            var connectionStringBuilder = new SqlConnectionStringBuilder
            {
                InitialCatalog = nameof(MigrationsSqlServerTest)
            };
            connectionStringBuilder.ApplyConfiguration();

            var optionsBuilder = new DbContextOptionsBuilder();
            optionsBuilder.UseSqlServer(connectionStringBuilder.ConnectionString);
            _options = optionsBuilder.Options;
        }