/Framework/src/Ncqrs.Tests/Eventing/Storage/Serialization/StringEventTranslatorTests.cs

using System;

using FluentAssertions;

using Ncqrs.Eventing.Storage;

using Ncqrs.Eventing.Storage.Serialization;

using Newtonsoft.Json.Linq;

using Xunit;



namespace Ncqrs.Tests.Eventing.Storage.Serialization

{

    public class StringEventTranslatorTests

    {

        private StringEventTranslator _translator;



        public StringEventTranslatorTests()

        {

            _translator = new StringEventTranslator();

        }



        [Fact]

        public void TranslateToCommon()

        {

            var obj = CreateEvent(new JObject(

                new JProperty("Name", "Alice"),

                new JProperty("Value", 10)));



            var result = _translator.TranslateToRaw(obj);

            result.EventIdentifier.Should().Be(obj.EventIdentifier);

            result.EventSourceId.Should().Be(obj.EventSourceId);

            result.EventSequence.Should().Be(obj.EventSequence);

            result.EventTimeStamp.Should().Be(obj.EventTimeStamp);

            result.EventVersion.Should().Be(obj.EventVersion);

            result.Data.Should().Be("{\"Name\":\"Alice\",\"Value\":10}");



        }



        [Fact]

        public void TranslateToCommon_obj_null()

        {

            var ex = Assert.Throws<ArgumentNullException>(() => _translator.TranslateToCommon(null));

            ex.ParamName.Should().Be("obj");

        }



        [Fact]

        public void TranslateToRaw()

        {

            var obj = CreateEvent("{\"Name\":\"Alice\",\"Value\":10}");



            var result = _translator.TranslateToCommon(obj);



            result.EventIdentifier.Should().Be(obj.EventIdentifier);

            result.EventSourceId.Should().Be(obj.EventSourceId);

            result.EventSequence.Should().Be(obj.EventSequence);

            result.EventTimeStamp.Should().Be(obj.EventTimeStamp);

            result.EventVersion.Should().Be(obj.EventVersion);

            result.Data.Should().NotBeNull();

        }



        [Fact]

        public void TranslateToRaw_obj_null()

        {

            var ex = Assert.Throws<ArgumentNullException>(() => _translator.TranslateToRaw(null));

            ex.ParamName.Should().Be("obj");

        }





        [Fact]

        public void Dates_use_iso_format()

        {

            var obj = CreateEvent(new JObject(new JProperty("Value", new DateTime(2000, 01, 02, 03, 04, 05, 006))));



            var result = _translator.TranslateToRaw(obj);



            result.Data.Should().Be("{\"Value\":\"2000-01-02T03:04:05.006\"}");

        }



        [Fact]

        public void Dates_respect_timezone()

        {

            var zone = new TimeSpan(0, 4, 0, 0);

            var obj = CreateEvent(new JObject(new JProperty("Value", new DateTimeOffset(2000, 01, 02, 03, 04, 05, 006, zone))));



            var result = _translator.TranslateToRaw(obj);



            result.Data.Should().Be("{\"Value\":\"2000-01-02T03:04:05.006+04:00\"}");

        }





        private StoredEvent<T> CreateEvent<T>(T data)

        {

            return new StoredEvent<T>(

                eventName: "bob",

                eventVersion: new Version(3, 0) /* different on purpose */,

                eventIdentifier: new Guid("402639D5-4106-4AE7-B210-45780C7A08F3"),

                eventSourceId: new Guid("697BAB3C-E122-4C70-85B0-76750BC2D878"),

                eventSequence: 1,

                eventTimeStamp: new DateTime(2001, 4, 12, 12, 52, 21, 425, DateTimeKind.Utc),

                data: data

            );

        }

    }

}