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

using System;

using FluentAssertions;

using Ncqrs.Eventing.Sourcing;

using Ncqrs.Eventing.Storage;

using Ncqrs.Eventing.Storage.Serialization;

using Newtonsoft.Json.Linq;

using Xunit;



namespace Ncqrs.Tests.Eventing.Storage.Serialization

{

    public class JsonEventFormatterTests

    {

        private IEventTypeResolver _typeResolver;



        public JsonEventFormatterTests()

        {

            var typeResolver = new AttributeEventTypeResolver();

            typeResolver.AddEvent(typeof(AnEvent));

            _typeResolver = typeResolver;

        }



        [Fact]

        public void Ctor()

        {

            var formatter = new JsonEventFormatter(_typeResolver);

        }



        [Fact]

        public void Ctor_typeResolver_null()

        {

            var ex = Assert.Throws<ArgumentNullException>(() => new JsonEventFormatter(null));

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

        }



        [Fact]

        public void Serialize()

        {

            var formatter = new JsonEventFormatter(_typeResolver);

            var theEvent = new AnEvent {

                Day = new DateTime(2000, 01, 01),

                Name = "Alice",

                Value = 10,

            };



            string eventName;

            var result = formatter.Serialize(theEvent, out eventName);



            eventName.Should().Be("bob");



            result.Should().NotBeNull();

            result.Count.Should().Be(3);

            result.Value<string>("Name").Should().Be(theEvent.Name);

            result.Value<int>("Value").Should().Be(theEvent.Value);

            result.Value<DateTime>("Day").Should().Be(theEvent.Day);

        }



        [Fact]

        public void Deserialize()

        {

            var formatter = new JsonEventFormatter(_typeResolver);

            var obj = new JObject(

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

                new JProperty("Value", 10),

                new JProperty("Day", new DateTime(2000, 01, 01))

                );            



            var rawResult = formatter.Deserialize(obj, "bob");

            rawResult.Should().BeOfType<AnEvent>();



            var result = (AnEvent) rawResult;

            

            result.Name.Should().Be("Alice");

            result.Value.Should().Be(10);

            result.Day.Should().Be(new DateTime(2000, 01, 01));

        }



        [EventName("bob")]

        public class AnEvent

        {

            public string Name { get; set; }

            public int Value { get; set; }

            public DateTime Day { get; set; }

        }

    }

}