DiscordChatExporter/DiscordChatExporter.Cli.Tests/Specs/SelfContainedSpecs.cs

using System.IO;
using System.Linq;
using System.Threading.Tasks;
using CliFx.Infrastructure;
using DiscordChatExporter.Cli.Commands;
using DiscordChatExporter.Cli.Tests.Fixtures;
using DiscordChatExporter.Cli.Tests.Infra;
using DiscordChatExporter.Cli.Tests.TestData;
using DiscordChatExporter.Cli.Tests.Utils;
using DiscordChatExporter.Core.Exporting;
using FluentAssertions;
using Xunit;

namespace DiscordChatExporter.Cli.Tests.Specs
{
    public record SelfContainedSpecs(TempOutputFixture TempOutput) : IClassFixture<TempOutputFixture>
    {
        [Fact]
        public async Task Messages_in_self_contained_export_only_reference_local_file_resources()
        {
            // Arrange
            var filePath = TempOutput.GetTempFilePath();
            var dirPath = Path.GetDirectoryName(filePath) ?? Directory.GetCurrentDirectory();

            // Act
            await new ExportChannelsCommand
            {
                TokenValue = Secrets.DiscordToken,
                IsBotToken = Secrets.IsDiscordTokenBot,
                ChannelIds = new[] { ChannelIds.SelfContainedTestCases },
                ExportFormat = ExportFormat.HtmlDark,
                OutputPath = filePath,
                ShouldDownloadMedia = true
            }.ExecuteAsync(new FakeConsole());

            var data = await File.ReadAllTextAsync(filePath);
            var document = Html.Parse(data);

            // Assert
            document
                .QuerySelectorAll("body [src]")
                .Select(e => e.GetAttribute("src")!)
                .Select(f => Path.GetFullPath(f, dirPath))
                .All(File.Exists)
                .Should()
                .BeTrue();
        }
    }
}