Kavita/API.Tests/Services/BookServiceTests.cs

using System.IO;
using System.IO.Abstractions;
using API.Services;
using EasyCaching.Core;
using Microsoft.Extensions.Logging;
using NSubstitute;
using Xunit;

namespace API.Tests.Services;

public class BookServiceTests
{
    private readonly IBookService _bookService;
    private readonly ILogger<BookService> _logger = Substitute.For<ILogger<BookService>>();

    public BookServiceTests()
    {
        var directoryService = new DirectoryService(Substitute.For<ILogger<DirectoryService>>(), new FileSystem());
        _bookService = new BookService(_logger, directoryService,
            new ImageService(Substitute.For<ILogger<ImageService>>(), directoryService)
            , Substitute.For<IMediaErrorService>());
    }

    [Theory]
    [InlineData("The Golden Harpoon; Or, Lost Among the Floes A Story of the Whaling Grounds.epub", 16)]
    [InlineData("Non-existent file.epub", 0)]
    [InlineData("Non an ebub.pdf", 0)]
    [InlineData("test_ſ.pdf", 1)] // This is dependent on Docnet bug https://github.com/GowenGit/docnet/issues/80
    [InlineData("test.pdf", 1)]
    public void GetNumberOfPagesTest(string filePath, int expectedPages)
    {
        var testDirectory = Path.Join(Directory.GetCurrentDirectory(), "../../../Services/Test Data/BookService");
        Assert.Equal(expectedPages, _bookService.GetNumberOfPages(Path.Join(testDirectory, filePath)));
    }

    [Fact]
    public void ShouldHaveComicInfo()
    {
        var testDirectory = Path.Join(Directory.GetCurrentDirectory(), "../../../Services/Test Data/BookService");
        var archive = Path.Join(testDirectory, "The Golden Harpoon; Or, Lost Among the Floes A Story of the Whaling Grounds.epub");
        const string summaryInfo = "Book Description";

        var comicInfo = _bookService.GetComicInfo(archive);
        Assert.NotNull(comicInfo);
        Assert.Equal(summaryInfo, comicInfo.Summary);
        Assert.Equal("genre1, genre2", comicInfo.Genre);
    }

    [Fact]
    public void ShouldHaveComicInfo_WithAuthors()
    {
        var testDirectory = Path.Join(Directory.GetCurrentDirectory(), "../../../Services/Test Data/BookService");
        var archive = Path.Join(testDirectory, "The Golden Harpoon; Or, Lost Among the Floes A Story of the Whaling Grounds.epub");

        var comicInfo = _bookService.GetComicInfo(archive);
        Assert.NotNull(comicInfo);
        Assert.Equal("Roger Starbuck,Junya Inoue", comicInfo.Writer);
    }

    [Fact]
    public void ShouldParseAsVolumeGroup_WithoutSeriesIndex()
    {
        var testDirectory = Path.Join(Directory.GetCurrentDirectory(), "../../../Services/Test Data/BookService");
        var archive = Path.Join(testDirectory, "TitleWithVolume_NoSeriesOrSeriesIndex.epub");

        var comicInfo = _bookService.GetComicInfo(archive);
        Assert.NotNull(comicInfo);
        Assert.Equal("1", comicInfo.Volume);
        Assert.Equal("Accel World", comicInfo.Series);
    }

    [Fact]
    public void ShouldParseAsVolumeGroup_WithSeriesIndex()
    {
        var testDirectory = Path.Join(Directory.GetCurrentDirectory(), "../../../Services/Test Data/BookService");
        var archive = Path.Join(testDirectory, "TitleWithVolume.epub");

        var comicInfo = _bookService.GetComicInfo(archive);
        Assert.NotNull(comicInfo);
        Assert.Equal("1.0", comicInfo.Volume);
        Assert.Equal("Accel World", comicInfo.Series);
    }

}