Updated web crawler logic.

MangaReader.Tests/WebCrawlers/UnitTest1.cs

@@ -1,4 +1,5 @@
-using MangaReader.Core.Metadata;
+using HtmlAgilityPack;
+using MangaReader.Core.Metadata;
 using MangaReader.Core.Sources.MangaNato.Metadata;
 using Shouldly;
 
@@ -6,6 +7,19 @@ namespace MangaReader.Tests.WebCrawlers;
 
 public class UnitTest1
 {
+    class TestMangaNatoWebCrawler : MangaNatoWebCrawler
+    {
+        protected override Task<HtmlDocument> GetHtmlDocumentAsync(string url, CancellationToken cancellationToken)
+        {
+            HtmlWeb web = new()
+            {
+                UsingCacheIfExists = false
+            };
+
+            return Task.FromResult(web.Load(url));
+        }
+    }
+
     private readonly string samplesPath;
     private readonly string mangaNatoSampleFilePath;
 
@@ -16,10 +30,10 @@ public class UnitTest1
     }
 
     [Fact]
-    public void Get_Manga()
+    public async Task Get_Manga()
     {
-        var webCrawler = new MangaNatoWebCrawler();
-        var manga = webCrawler.GetManga(mangaNatoSampleFilePath);
+        var webCrawler = new TestMangaNatoWebCrawler();
+        var manga = await webCrawler.GetMangaAsync(mangaNatoSampleFilePath, CancellationToken.None);
 
         manga.ShouldNotBeNull();