astronomy/generate/dotnet/csharp_test/csharp_test.cs

using System;
using System.IO;
using CosineKitty;

namespace csharp_test
{
    class Program
    {
        static int Main(string[] args)
        {
            try
            {
                if (TestTime() != 0) return 1;
                if (AstroCheck() != 0) return 1;
                return 0;
            }
            catch (Exception ex)
            {
                Console.WriteLine("charp_test: EXCEPTION: {0}", ex);
                return 1;
            }
        }

        static int TestTime()
        {
            const int year = 2018;
            const int month = 12;
            const int day = 2;
            const int hour = 18;
            const int minute = 30;
            const int second = 12;
            const int milli = 543;

            DateTime d = new DateTime(year, month, day, hour, minute, second, milli, DateTimeKind.Utc);
            AstroTime time = new AstroTime(d);
            Console.WriteLine("TestTime: text={0}, ut={1}, tt={2}", time.ToString(), time.ut.ToString("0.000000"), time.tt.ToString("0.000000"));

            const double expected_ut = 6910.270978506945;
            double diff = time.ut - expected_ut;
            if (Math.Abs(diff) > 1.0e-12)
            {
                Console.WriteLine("TestTime: ERROR - excessive UT error {0}", diff);
                return 1;
            }

            const double expected_tt = 6910.271779431480;
            diff = time.tt - expected_tt;
            if (Math.Abs(diff) > 1.0e-12)
            {
                Console.WriteLine("TestTime: ERROR - excessive TT error {0}", diff);
                return 1;
            }

            DateTime utc = time.ToUtcDateTime();
            if (utc.Year != year || utc.Month != month || utc.Day != day || utc.Hour != hour || utc.Minute != minute || utc.Second != second || utc.Millisecond != milli)
            {
                Console.WriteLine("TestTime: ERROR - Expected {0:o}, found {1:o}", d, utc);
                return 1;
            }

            return 0;
        }

        static int AstroCheck()
        {
            const string filename = "csharp_check.txt";
            using (StreamWriter outfile = File.CreateText(filename))
            {
                var bodylist = new Body[]
                {
                    Body.Sun, Body.Mercury, Body.Venus, Body.Earth, Body.Mars,
                    Body.Jupiter, Body.Saturn, Body.Uranus, Body.Neptune, Body.Pluto
                };

                var observer = new Observer(29.0, -81.0, 10.0);
                var time = new AstroTime(new DateTime(1700, 1, 1, 0, 0, 0, DateTimeKind.Utc));
                var stop = new AstroTime(new DateTime(2200, 1, 1, 0, 0, 0, DateTimeKind.Utc));
                while (time.tt < stop.tt)
                {
                    foreach (Body body in bodylist)
                    {
                        AstroVector pos = Astronomy.HelioVector(body, time);
                    }

                    time = time.AddDays(10.0 + Math.PI/100.0);
                }
            }
            return 0;
        }
    }
}