Npgsql.Tests.CommandTests.Cancel C# (CSharp) Method

        public void Cancel()
        {
            using (var conn = OpenConnection())
            {
                using (var cmd = CreateSleepCommand(conn, 5))
                {
                    Task.Factory.StartNew(() =>
                    {
                        Thread.Sleep(300);
                        cmd.Cancel();
                    });
                    Assert.That(() => cmd.ExecuteNonQuery(), Throws
                        .TypeOf<PostgresException>()
                        .With.Property(nameof(PostgresException.SqlState)).EqualTo("57014")
                    );
                }
            }
        }