diff --git a/KoeBook.Test/Epub/ScrapingAozoraServiceTest.cs b/KoeBook.Test/Epub/ScrapingAozoraServiceTest.cs
index 2d10082..4866d5f 100644
--- a/KoeBook.Test/Epub/ScrapingAozoraServiceTest.cs
+++ b/KoeBook.Test/Epub/ScrapingAozoraServiceTest.cs
@@ -20,6 +20,12 @@ public ScrapingAozoraServiceTest()
             .OfType<ScrapingAozoraService>()
             .Single();
     }
+
+    private static EpubDocument EmptySingleParagraph
+    {
+        get { return new EpubDocument("", "", "", Guid.NewGuid()) { Chapters = [new Chapter() { Sections = [new Section("") { Elements = [new Paragraph()] }] }] }; }
+    }
+
     /// <summary>
     /// (htmlの要素の)テキストを"<div class = \"main_text\"></div>"で囲む
     /// </summary>