public void TestCreateAfChunkPart() { using (var docxStream = AssemblyResourceHelper.GetResourceStream(this, "DocxPackageTest.docx")) { var memoryStream = new MemoryStream(); memoryStream.Seek(0, SeekOrigin.Begin); docxStream.Seek(0, SeekOrigin.Begin); docxStream.CopyTo(memoryStream); var testPackage = new DocxPackagePart(memoryStream); const int ExpectedAfChunkId = 10; const string ExpectedHtmlString = "<html><head/><body>Test AfChunk Generator</body></html>"; var expectedPartPath = string.Format("//word/afchunk{0}.dat", ExpectedAfChunkId); using (var package = Package.Open(memoryStream, FileMode.Open, FileAccess.ReadWrite)) { DocxPartResolver.CreateAfChunkPart(package, ExpectedAfChunkId, ExpectedHtmlString); var formattedAltChunkRel = string.Format("altChunkId{0}", ExpectedAfChunkId); var actualDocPart = DocxPartResolver.GetDocumentPart(package); var actualRelationship = actualDocPart.GetRelationship(formattedAltChunkRel); Assert.IsNotNull(actualRelationship); Assert.AreEqual(formattedAltChunkRel, actualRelationship.Id); var actualAfChunkPart = package.GetPart(PackUriHelper.ResolvePartUri(actualRelationship.SourceUri, actualRelationship.TargetUri)); Assert.IsNotNull(actualAfChunkPart); using (var afChunkStream = actualAfChunkPart.GetStream()) { using (var reader = new StreamReader(afChunkStream)) { Assert.AreEqual(ExpectedHtmlString, reader.ReadToEnd()); } } } } }