public void EnsureTexturesAreWrittenTest()
{
var file = new ThreeMfFile();
var model = new ThreeMfModel();
model.Resources.Add(new ThreeMfTexture2D(StringToBytes("texture content"), ThreeMfImageContentType.Jpeg));
file.Models.Add(model);
using (var archive = GetArchiveFromFile(file))
using (var modelStream = archive.GetEntry("3D/3dmodel.model").Open())
using (var reader = new StreamReader(modelStream))
{
var modelXml = XDocument.Parse(reader.ReadToEnd());
var textureElement = modelXml.Root.Element(ThreeMfModel.ResourcesName).Element(ThreeMfResource.Texture2DName);
// get the path to the texture
var path = textureElement.Attribute("path").Value;
// ensure it looks correct and isn't an empty guid
Assert.NotEqual($"/3D/Textures/{new Guid().ToString("N")}.jpg", path);
Assert.StartsWith("/3D/Textures/", path);
Assert.EndsWith(".jpg", path);
path = path.Substring(1);
// ensure that the item is present
using (var textureStream = archive.GetEntry(path).Open())
using (var textureReader = new StreamReader(textureStream))
{
// ensure that it's correct
Assert.Equal("texture content", textureReader.ReadToEnd());
}
}
}
private static ThreeMfFile FileFromParts(params Tuple <string, string>[] filesAndContents)
{
using (var ms = new MemoryStream())
{
using (var archive = new ZipArchive(ms, ZipArchiveMode.Create, true))
{
var contentTypes = Tuple.Create("[Content_Types].xml", @"
<Types xmlns=""http://schemas.openxmlformats.org/package/2006/content-types"">
<Default Extension=""rels"" ContentType=""application/vnd.openxmlformats-package.relationships+xml"" />
<Default Extension=""model"" ContentType=""application/vnd.ms-package.3dmanufacturing-3dmodel+xml"" />
</Types>
");
foreach (var pair in filesAndContents.Append(contentTypes))
{
var path = pair.Item1;
var contents = pair.Item2;
var entry = archive.CreateEntry(path);
using (var stream = entry.Open())
using (var writer = new StreamWriter(stream))
{
writer.Write(contents);
}
}
}
ms.Seek(0, SeekOrigin.Begin);
var file = ThreeMfFile.Load(ms);
return(file);
}
}
public void LoadFromDiskTest()
{
var samplesDir = Path.Combine(Path.GetDirectoryName(typeof(ThreeMfFileLoadTests).GetTypeInfo().Assembly.Location), "Samples");
var loadedFiles = 0;
foreach (var path in Directory.EnumerateFiles(samplesDir, "*.3mf", SearchOption.AllDirectories))
{
var fileName = Path.GetFileName(path);
if (fileName == "multiprop-metallic.3mf" || fileName == "multiprop-translucent.3mf")
{
// undefined namespace `ms`
continue;
}
var pathParts = path.Split(Path.DirectorySeparatorChar, Path.AltDirectorySeparatorChar);
if (pathParts.Contains("production") || pathParts.Contains("beam lattice"))
{
// not yet implemented
continue;
}
if (pathParts.Contains("MUSTFAIL"))
{
// expected to fail
continue;
}
using (var fs = new FileStream(path, FileMode.Open))
{
var file = ThreeMfFile.Load(fs);
var model = file.Models.Single();
loadedFiles++;
}
}
Assert.True(loadedFiles > 0, "No sample files were loaded. Ensure all submodules have been initialized.");
}
public void EnsureZeroModelRelationshipsTest()
{
var file = new ThreeMfFile();
var relsEntry = GetEntryFromFile(file, "_rels/.rels");
Assert.Null(relsEntry);
}
private string GetEntryText(ThreeMfFile file, string entryPath)
{
using (var archive = GetArchiveFromFile(file))
{
return(GetEntryText(archive, entryPath));
}
}
public void EnsureModelRelationshipEntryInSavedFileTest()
{
var file = new ThreeMfFile();
using (var ms = new MemoryStream())
{
file.Save(ms);
ms.Seek(0, SeekOrigin.Begin);
file = ThreeMfFile.Load(ms);
Assert.Equal(0, file.Models.Count);
}
file.Models.Add(new ThreeMfModel());
using (var ms = new MemoryStream())
{
file.Save(ms);
ms.Seek(0, SeekOrigin.Begin);
file = ThreeMfFile.Load(ms);
Assert.Equal(1, file.Models.Count);
}
file.Models.Add(new ThreeMfModel());
using (var ms = new MemoryStream())
{
file.Save(ms);
ms.Seek(0, SeekOrigin.Begin);
file = ThreeMfFile.Load(ms);
Assert.Equal(2, file.Models.Count);
}
}
private ZipArchiveEntry GetEntryFromFile(ThreeMfFile file, string entryPath)
{
using (var archive = GetArchiveFromFile(file))
{
return(archive.GetEntry(entryPath));
}
}
private ZipArchive GetArchiveFromFile(ThreeMfFile file)
{
var ms = new MemoryStream();
file.Save(ms);
ms.Seek(0, SeekOrigin.Begin);
return(GetArchiveFromStream(ms));
}
public void EnsureModelXmlEncodingTest()
{
var file = new ThreeMfFile();
file.Models.Add(new ThreeMfModel());
var actual = GetEntryText(file, "3D/3dmodel.model");
Assert.StartsWith(@"<?xml version=""1.0"" encoding=""utf-8""?>", actual);
}
private static ThreeMfModel RoundTripModel(ThreeMfModel model)
{
var file1 = new ThreeMfFile();
file1.Models.Add(model);
var file2 = RoundTripFile(file1);
return(file2.Models.Single());
}
public void EnsureMultipleModelRelationshipTest()
{
var file = new ThreeMfFile();
file.Models.Add(new ThreeMfModel());
file.Models.Add(new ThreeMfModel());
var relsXml = GetXmlFromFile(file, "_rels/.rels");
Assert.Equal(2, relsXml.Elements().Count());
}
public static ThreeMfFile RoundTripFile(ThreeMfFile file)
{
using (var ms = new MemoryStream())
{
file.Save(ms);
ms.Seek(0, SeekOrigin.Begin);
var file2 = ThreeMfFile.Load(ms);
return(file2);
}
}
public void EnsureSingleModelRelationshipTest()
{
var file = new ThreeMfFile();
file.Models.Add(new ThreeMfModel());
var relsXml = GetXmlFromFile(file, "_rels/.rels");
var relationship = relsXml.Elements().Single();
Assert.Equal("http://schemas.microsoft.com/3dmanufacturing/2013/01/3dmodel", relationship.Attribute("Type").Value);
Assert.Equal("/3D/3dmodel.model", relationship.Attribute("Target").Value);
}
public void FileSystemAPITest()
{
var filePath = Path.GetTempFileName();
var file = new ThreeMfFile();
file.Save(filePath);
var roundTripFile = ThreeMfFile.Load(filePath);
try
{
File.Delete(filePath);
}
catch
{
}
}
public void EnsureContentTypesTest()
{
// this file should be static
var expected = @"
<?xml version=""1.0"" encoding=""utf-8""?>
<Types xmlns=""http://schemas.openxmlformats.org/package/2006/content-types"">
<Default Extension=""model"" ContentType=""application/vnd.ms-package.3dmanufacturing-3dmodel+xml"" />
<Default Extension=""rels"" ContentType=""application/vnd.openxmlformats-package.relationships+xml"" />
</Types>
".Trim();
var file = new ThreeMfFile();
file.Models.Add(new ThreeMfModel());
var actual = GetEntryText(file, "[Content_Types].xml");
// format contents
expected = XDocument.Parse(expected).ToString();
actual = XDocument.Parse(actual).ToString();
Assert.Equal(expected, actual);
}
public void EnsureThumbnailRelationshipsArePresentTest()
{
var file = new ThreeMfFile();
var model = new ThreeMfModel();
model.Resources.Add(new ThreeMfObject()
{
ThumbnailData = new byte[0], ThumbnailContentType = ThreeMfImageContentType.Jpeg
});
model.Resources.Add(new ThreeMfObject()
{
ThumbnailData = new byte[0], ThumbnailContentType = ThreeMfImageContentType.Png
});
file.Models.Add(model);
using (var zipStream = new MemoryStream())
using (var packageStream = new MemoryStream())
{
// save file to stream and duplicate it so it can be re-opened as both a simple zip file and a package to validate structure
file.Save(zipStream);
zipStream.Seek(0, SeekOrigin.Begin);
zipStream.CopyTo(packageStream);
zipStream.Seek(0, SeekOrigin.Begin);
packageStream.Seek(0, SeekOrigin.Begin);
using (var archive = GetArchiveFromStream(zipStream))
using (var package = Package.Open(packageStream))
{
// get the actual thumbnail paths
var jpegPath = "/" + archive.Entries.Single(e => e.Name.EndsWith(".jpg")).FullName;
var pngPath = "/" + archive.Entries.Single(e => e.Name.EndsWith(".png")).FullName;
var modelPart = package.GetPart(new Uri("/3D/3dmodel.model", UriKind.RelativeOrAbsolute));
var rels = modelPart.GetRelationships().ToList();
Assert.Equal(2, rels.Count);
Assert.Equal(jpegPath, rels[0].TargetUri.ToString());
Assert.Equal(pngPath, rels[1].TargetUri.ToString());
}
}
}
public void EnsureTextureRelationshipsArePresentTest()
{
var file = new ThreeMfFile();
var model = new ThreeMfModel();
model.Resources.Add(new ThreeMfTexture2D(new byte[0], ThreeMfImageContentType.Jpeg));
model.Resources.Add(new ThreeMfTexture2D(new byte[0], ThreeMfImageContentType.Png));
file.Models.Add(model);
using (var archive = GetArchiveFromFile(file))
{
// get the actual texture paths
var jpegPath = archive.Entries.Single(e => e.Name.EndsWith(".jpg")).FullName;
var pngPath = archive.Entries.Single(e => e.Name.EndsWith(".png")).FullName;
var expected = $@"
<?xml version=""1.0"" encoding=""utf-8""?>
<Relationships xmlns=""http://schemas.openxmlformats.org/package/2006/relationships"">
<Relationship Type=""http://schemas.microsoft.com/3dmanufacturing/2013/01/3dtexture"" Target=""/{jpegPath}"" Id=""rel1"" />
<Relationship Type=""http://schemas.microsoft.com/3dmanufacturing/2013/01/3dtexture"" Target=""/{pngPath}"" Id=""rel2"" />
</Relationships>
".Trim();
var actual = GetEntryText(archive, "3D/_rels/3dmodel.model.rels");
// format contents
expected = XDocument.Parse(expected).ToString();
var actualXml = XDocument.Parse(actual);
var relNumber = 1;
foreach (var element in actualXml.Root.Elements())
{
// normalize relationship ids
element.Attribute("Id").Value = $"rel{relNumber++}";
}
actual = actualXml.ToString();
Assert.Equal(expected, actual);
}
}
public void EnsureThumbnailsAreWrittenTest()
{
var file = new ThreeMfFile();
var obj = new ThreeMfObject();
var model = new ThreeMfModel();
model.Resources.Add(new ThreeMfObject()
{
ThumbnailData = StringToBytes("jpeg thumbnail"), ThumbnailContentType = ThreeMfImageContentType.Jpeg
});
file.Models.Add(model);
using (var archive = GetArchiveFromFile(file))
using (var modelStream = archive.GetEntry("3D/3dmodel.model").Open())
using (var reader = new StreamReader(modelStream))
{
var modelXml = XDocument.Parse(reader.ReadToEnd());
var objectElement = modelXml.Root.Element(ThreeMfModel.ResourcesName).Element(ThreeMfResource.ObjectName);
// get the path to the thumbnail
var path = objectElement.Attribute("thumbnail").Value;
// ensure it looks correct and isn't an empty guid
Assert.NotEqual($"{ThreeMfObject.ThumbnailPathPrefix}{new Guid().ToString("N")}.jpg", path);
Assert.StartsWith(ThreeMfObject.ThumbnailPathPrefix, path);
Assert.EndsWith(".jpg", path);
path = path.Substring(1);
// ensure that the item is present
using (var thumbnailStream = archive.GetEntry(path).Open())
using (var thumbnailReader = new StreamReader(thumbnailStream))
{
// ensure that it's correct
Assert.Equal("jpeg thumbnail", thumbnailReader.ReadToEnd());
}
}
}
private XElement GetXmlFromFile(ThreeMfFile file, string entryPath)
{
var actualText = GetEntryText(file, entryPath);
return(XDocument.Parse(actualText).Root);
}
