/Framework/src/Ncqrs.Tests/Eventing/Storage/NoDB/SnapshotStoreTests/when_saving_a_new_snapshot.cs

using System;

using System.IO;

using FluentAssertions;

using Ncqrs.Eventing.Sourcing.Snapshotting;

using Ncqrs.Eventing.Storage.NoDB.Tests.Fakes;

using Newtonsoft.Json;

using Xunit;



namespace Ncqrs.Eventing.Storage.NoDB.Tests.SnapshotStoreTests

{

    //[Ignore("")]

    public class when_saving_a_new_snapshot : IClassFixture<when_saving_a_new_snapshotFixture>

    {

        private when_saving_a_new_snapshotFixture _fixture;



        public when_saving_a_new_snapshot(when_saving_a_new_snapshotFixture fixture)

        {

            _fixture = fixture;

        }



        [Fact]

        public void it_should_create_the_snapshot_file()

        {

            Assert.True(File.Exists(Path.Combine(_fixture.FolderName, _fixture.FileName)));

        }



        [Fact]

        public void it_should_write_the_snapshot_to_the_snapshot_file()

        {

            using (var reader = new StreamReader(File.Open(Path.Combine(_fixture.FolderName, _fixture.FileName), FileMode.Open)))

            {

                reader.ReadLine(); //Throw out type line

                var jsonSerializer = JsonSerializer.Create(null);

                var snapshot = jsonSerializer.Deserialize<Snapshot>(new JsonTextReader(reader));

                snapshot.EventSourceId.Should().Be(_fixture.Snapshot.EventSourceId);

                snapshot.Version.Should().Be(_fixture.Snapshot.Version);

            }



        }

    }



    public class when_saving_a_new_snapshotFixture : NoDBSnapshotStoreTestFixture

    {

        public string FolderName;

        public string FileName;



        public when_saving_a_new_snapshotFixture(): base()

        {

            Snapshot = new Snapshot(Guid.NewGuid(), 1, new TestSnapshot { Name = "TestName" });

            FolderName = Snapshot.EventSourceId.ToString().Substring(0, 2);

            FileName = Snapshot.EventSourceId.ToString().Substring(2) + ".ss";

            SnapshotStore.SaveSnapshot(Snapshot);

        }

    }

}