// ==========================================================================
//  DefaultDomainObjectFactoryTests.cs
//  Squidex Headless CMS
// ==========================================================================
//  Copyright (c) Squidex Group
//  All rights reserved.
// ==========================================================================

using System;
using FakeItEasy;
using Squidex.Infrastructure.CQRS.Events;
using Xunit;

namespace Squidex.Infrastructure.CQRS.Commands
{
    public class DefaultDomainObjectFactoryTests
    {
        private readonly IServiceProvider serviceProvider = A.Fake<IServiceProvider>();

        private sealed class DO : DomainObjectBase
        {
            public DO(Guid id, int version)
                : base(id, version)
            {
            }

            protected override void DispatchEvent(Envelope<IEvent> @event)
            {
            }
        }

        [Fact]
        public void Should_create_domain_object_with_autofac()
        {
            var factoryFunction = new DomainObjectFactoryFunction<DO>(passedId =>
            {
                return new DO(passedId, -1);
            });

            A.CallTo(() => serviceProvider.GetService(typeof(DomainObjectFactoryFunction<DO>)))
                .Returns(factoryFunction);

            var sut = new DefaultDomainObjectFactory(serviceProvider);

            var id = Guid.NewGuid();

            var domainObject = sut.CreateNew<DO>(id);

            Assert.Equal(id, domainObject.Id);
            Assert.Equal(-1, domainObject.Version);
        }

        [Fact]
        public void Should_throw_exception_if_new_entity_has_invalid_version()
        {
            var factoryFunction = new DomainObjectFactoryFunction<DO>(passedId =>
            {
                return new DO(passedId, 0);
            });

            A.CallTo(() => serviceProvider.GetService(typeof(DomainObjectFactoryFunction<DO>)))
                .Returns(factoryFunction);

            var sut = new DefaultDomainObjectFactory(serviceProvider);

            Assert.Throws<InvalidOperationException>(() => sut.CreateNew<DO>(Guid.NewGuid()));
        }
    }
}