#5-1 EpubDocumentのテストを作成中

KoeBook.Test/Epub/EpubDocumentTest.cs

@@ -0,0 +1,132 @@
+using KoeBook.Epub.Models;
+using KoeBook.Test.Proxies;
+
+namespace KoeBook.Test.Epub;
+
+public class EpubDocumentTest
+{
+    #region Ensure List
+    [Fact]
+    public void EnsureChapter()
+    {
+        var document = new EpubDocument("title", "author", "cover", default);
+
+        Assert.Empty(document.Chapters);
+
+        // 空のときは追加
+        document.AsPrivateProxy().EnsureChapter();
+
+        var chapter = Assert.Single(document.Chapters);
+        Assert.Null(chapter.Title);
+        Assert.Empty(chapter.Sections);
+
+        // 空でないときは無視
+        document.AsPrivateProxy().EnsureChapter();
+
+        var chapter2 = Assert.Single(document.Chapters);
+        Assert.Same(chapter, chapter2);
+    }
+
+    [Fact]
+    public void EnsureSection()
+    {
+        var document = new EpubDocument("title", "author", "cover", default);
+
+        Assert.Empty(document.Chapters);
+
+        // 空のときは追加される
+        document.AsPrivateProxy().EnsureSection(0);
+
+        var chapter = Assert.Single(document.Chapters);
+        Assert.Null(chapter.Title);
+        var section = Assert.Single(chapter.Sections);
+        Assert.Equal("title", section.Title);
+        Assert.Empty(section.Elements);
+
+        // 空でないときは無視
+        document.Chapters = [
+            new() {
+                Title = "chapter1",
+                Sections = [
+                    new("section1"),
+                    new("section2"),
+                    new("section3"),
+                ],
+            },
+            new() {
+                Title = "chapter2",
+                Sections = [],
+            },
+        ];
+
+        document.AsPrivateProxy().EnsureSection(0);
+
+        Assert.Equal(3, document.Chapters[0].Sections.Count);
+
+        document.AsPrivateProxy().EnsureSection(1);
+
+        Assert.Equal("chapter2", document.Chapters[1].Sections[0].Title);
+
+        // インデックスは正しく指定する必要がある
+        var exception = Record.Exception(() => document.AsPrivateProxy().EnsureSection(5));
+
+        Assert.IsType<IndexOutOfRangeException>(exception);
+    }
+
+    [Fact]
+    public void EnsureParagraph()
+    {
+        var document = new EpubDocument("title", "author", "cover", default);
+
+        Assert.Empty(document.Chapters);
+
+        // 空のときは追加される
+        document.AsPrivateProxy().EnsureParagraph(0, 0);
+
+        var chapter = Assert.Single(document.Chapters);
+        var section = Assert.Single(chapter.Sections);
+        var element = Assert.Single(section.Elements);
+        var paragraph = Assert.IsType<Paragraph>(element);
+        Assert.Null(paragraph.Audio);
+        Assert.Null(paragraph.Text);
+        Assert.Null(paragraph.ClassName);
+
+        // 空でないときは無視
+        document.Chapters = [
+            new() {
+                Title = "chapter1",
+                Sections = [
+                    new("section1") {
+                        Elements = [
+                            new Paragraph() {
+                                Text = "paragraph1",
+                            },
+                        ]
+                    },
+                ],
+            },
+        ];
+
+        document.AsPrivateProxy().EnsureParagraph(0, 0);
+
+        chapter = Assert.Single(document.Chapters);
+        section = Assert.Single(chapter.Sections);
+        element = Assert.Single(section.Elements);
+        paragraph = Assert.IsType<Paragraph>(element);
+        Assert.Equal("paragraph1", paragraph.Text);
+
+        document.AsPrivateProxy().EnsureParagraph(0, 1);
+
+        element = Assert.Single(document.Chapters[0].Sections[1].Elements);
+        paragraph = Assert.IsType<Paragraph>(element);
+        Assert.Null(paragraph.Audio);
+        Assert.Null(paragraph.Text);
+        Assert.Null(paragraph.ClassName);
+
+        // インデックスは正しく指定する必要がある
+        var exception = Record.Exception(() => document.AsPrivateProxy().EnsureParagraph(0, 5));
+
+        Assert.IsType<IndexOutOfRangeException>(exception);
+    }
+    #endregion
+}

KoeBook.Test/KoeBook.Test.csproj

@@ -12,6 +12,10 @@
   <ItemGroup>
     <PackageReference Include="coverlet.collector" Version="6.0.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.8.0" />
+    <PackageReference Include="PrivateProxy" Version="1.0.2">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
     <PackageReference Include="xunit" Version="2.5.3" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.5.3" />
   </ItemGroup>

KoeBook.Test/Proxies/EpubModels.cs

@@ -0,0 +1,7 @@
+using KoeBook.Epub.Models;
+using PrivateProxy;
+
+namespace KoeBook.Test.Proxies;
+
+[GeneratePrivateProxy(typeof(EpubDocument))]
+partial struct EpubDocumentProxy;