// ==========================================================================
//  Squidex Headless CMS
// ==========================================================================
//  Copyright (c) Squidex UG (haftungsbeschraenkt)
//  All rights reserved. Licensed under the MIT license.
// ==========================================================================

using System;
using System.Threading;
using System.Threading.Tasks;
using System.Xml.Linq;
using FakeItEasy;
using Squidex.Infrastructure.States;
using Xunit;

namespace Squidex.Domain.Users
{
    public sealed class DefaultXmlRepositoryTests
    {
        private readonly ISnapshotStore<DefaultXmlRepository.State, string> store = A.Fake<ISnapshotStore<DefaultXmlRepository.State, string>>();
        private readonly DefaultXmlRepository sut;

        public DefaultXmlRepositoryTests()
        {
            sut = new DefaultXmlRepository(store);
        }

        [Fact]
        public void Should_read_from_store()
        {
            A.CallTo(() => store.ReadAllAsync(A<Func<DefaultXmlRepository.State, long, Task>>._, A<CancellationToken>._))
                .Invokes((Func<DefaultXmlRepository.State, long, Task> callback, CancellationToken _) =>
                {
                    callback(new DefaultXmlRepository.State
                    {
                        Xml = new XElement("xml").ToString()
                    }, 0);

                    callback(new DefaultXmlRepository.State
                    {
                        Xml = new XElement("xml").ToString()
                    }, 0);
                });

            var xml = sut.GetAllElements();

            Assert.Equal(2, xml.Count);
        }

        [Fact]
        public void Should_write_to_store()
        {
            var xml = new XElement("xml");

            sut.StoreElement(xml, "name");

            A.CallTo(() => store.WriteAsync("name", A<DefaultXmlRepository.State>._, A<long>._, 0))
                .MustHaveHappened();
        }
    }
}