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using VersOne.Epub.Internal;
using VersOne.Epub.Options;
using VersOne.Epub.Schema;
using VersOne.Epub.Test.Unit.Mocks;
namespace VersOne.Epub.Test.Unit.Readers
{
public class SpineReaderTests
{
[Fact(DisplayName = "Getting reading order for a minimal EPUB spine should succeed")]
public void GetReadingOrderForMinimalSpineTest()
{
EpubSchema epubSchema = CreateEpubSchema();
EpubContentRef epubContentRef = new();
List<EpubLocalTextContentFileRef> expectedReadingOrder = [];
List<EpubLocalTextContentFileRef> actualReadingOrder = SpineReader.GetReadingOrder(epubSchema, epubContentRef, new SpineReaderOptions());
Assert.Equal(expectedReadingOrder, actualReadingOrder);
}
[Fact(DisplayName = "Getting reading order for a typical EPUB spine should succeed")]
public void GetReadingOrderForTypicalSpineTest()
{
EpubSchema epubSchema = CreateEpubSchema
(
manifest: new EpubManifest
(
items:
[
new
(
id: "item-1",
href: "chapter1.html",
mediaType: "application/xhtml+xml"
),
new
(
id: "item-2",
href: "chapter2.html",
mediaType: "application/xhtml+xml"
)
]
),
spine: new EpubSpine
(
items:
[
new
(
idRef: "item-1"
),
new
(
idRef: "item-2"
)
]
)
);
EpubLocalTextContentFileRef expectedHtmlFileRef1 = CreateTestHtmlFileRef("chapter1.html");
EpubLocalTextContentFileRef expectedHtmlFileRef2 = CreateTestHtmlFileRef("chapter2.html");
List<EpubLocalTextContentFileRef> expectedHtmlLocal =
[
expectedHtmlFileRef1,
expectedHtmlFileRef2
];
EpubContentRef epubContentRef = new
(
html: new EpubContentCollectionRef<EpubLocalTextContentFileRef, EpubRemoteTextContentFileRef>(expectedHtmlLocal.AsReadOnly())
);
List<EpubLocalTextContentFileRef> expectedReadingOrder =
[
expectedHtmlFileRef1,
expectedHtmlFileRef2
];
List<EpubLocalTextContentFileRef> actualReadingOrder = SpineReader.GetReadingOrder(epubSchema, epubContentRef, new SpineReaderOptions());
Assert.Equal(expectedReadingOrder, actualReadingOrder);
}
[Fact(DisplayName = "GetReadingOrder should throw EpubPackageException if there is no manifest item with ID matching to the ID ref of a spine item and SpineReaderOptions.IgnoreMissingManifestItems is false")]
public void GetReadingOrderWithMissingManifestItemWithoutIgnoringErrorsTest()
{
EpubSchema epubSchema = CreateEpubSchema
(
manifest: new EpubManifest
(
items:
[
new
(
id: "item-2",
href: "chapter2.html",
mediaType: "application/xhtml+xml"
)
]
),
spine: new EpubSpine
(
items:
[
new
(
idRef: "item-1"
)
]
)
);
EpubContentRef epubContentRef = new();
Assert.Throws<EpubPackageException>(() => SpineReader.GetReadingOrder(epubSchema, epubContentRef, new SpineReaderOptions()));
}
[Fact(DisplayName = "GetReadingOrder should skip non-existent manifest items if SpineReaderOptions.IgnoreMissingManifestItems is true")]
public void GetReadingOrderWithMissingManifestItemWithIgnoringErrorsTest()
{
EpubSchema epubSchema = CreateEpubSchema
(
manifest: new EpubManifest
(
items:
[
new
(
id: "item-2",
href: "chapter2.html",
mediaType: "application/xhtml+xml"
)
]
),
spine: new EpubSpine
(
items:
[
new
(
idRef: "item-1"
)
]
)
);
EpubContentRef epubContentRef = new();
SpineReaderOptions spineReaderOptions = new()
{
IgnoreMissingManifestItems = true
};
List<EpubLocalTextContentFileRef> expectedReadingOrder = [];
List<EpubLocalTextContentFileRef> actualReadingOrder = SpineReader.GetReadingOrder(epubSchema, epubContentRef, spineReaderOptions);
Assert.Equal(expectedReadingOrder, actualReadingOrder);
}
[Fact(DisplayName = "GetReadingOrder should throw EpubPackageException if there is no HTML content file referenced by a manifest item")]
public void GetReadingOrderWithMissingHtmlContentFileTest()
{
EpubSchema epubSchema = CreateEpubSchema
(
manifest: new
(
items:
[
new
(
id: "item-1",
href: "chapter1.html",
mediaType: "application/xhtml+xml"
)
]
),
spine: new
(
items:
[
new
(
idRef: "item-1"
)
]
)
);
EpubContentRef epubContentRef = new();
Assert.Throws<EpubPackageException>(() => SpineReader.GetReadingOrder(epubSchema, epubContentRef, new SpineReaderOptions()));
}
[Fact(DisplayName = "GetReadingOrder should throw EpubPackageException if the HTML content file referenced by a spine item is a remote resource")]
public void GetReadingOrderWithRemoteHtmlContentFileTest()
{
string remoteFileHref = "https://example.com/books/123/chapter1.html";
EpubSchema epubSchema = CreateEpubSchema
(
manifest: new
(
items:
[
new
(
id: "item-1",
href: remoteFileHref,
mediaType: "application/xhtml+xml"
)
]
),
spine: new
(
items:
[
new
(
idRef: "item-1"
)
]
)
);
List<EpubRemoteTextContentFileRef> htmlRemote =
[
new
(
metadata: new
(
key: remoteFileHref,
contentType: EpubContentType.XHTML_1_1,
contentMimeType: "application/xhtml+xml"
),
epubContentLoader: new TestEpubContentLoader()
)
];
EpubContentRef epubContentRef = new
(
html: new EpubContentCollectionRef<EpubLocalTextContentFileRef, EpubRemoteTextContentFileRef>(null, htmlRemote.AsReadOnly())
);
Assert.Throws<EpubPackageException>(() => SpineReader.GetReadingOrder(epubSchema, epubContentRef, new SpineReaderOptions()));
}
private static EpubSchema CreateEpubSchema(EpubManifest? manifest = null, EpubSpine? spine = null)
{
return new
(
package: new
(
uniqueIdentifier: null,
epubVersion: EpubVersion.EPUB_3,
metadata: new EpubMetadata(),
manifest: manifest ?? new EpubManifest(),
spine: spine ?? new EpubSpine(),
guide: null
),
epub2Ncx: null,
epub3NavDocument: null,
mediaOverlays: null,
contentDirectoryPath: String.Empty
);
}
private static EpubLocalTextContentFileRef CreateTestHtmlFileRef(string fileName)
{
return new(new EpubContentFileRefMetadata(fileName, EpubContentType.XHTML_1_1, "application/xhtml+xml"), fileName, new TestEpubContentLoader());
}
}
}
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