public void TestSliceInformationValidation()
{
ushort highBit = 15;
var dicomDataset = CreateValidDicomDatasetSlice(5, 5, 1, 1, new Point3D(), DicomUID.CTImageStorage, highBit);
// Valid DICOM slice.
DicomSeriesInformationValidator.ValidateSliceInformation(SliceInformation.Create(dicomDataset), new[] { dicomDataset.InternalTransferSyntax });
// Invalid supported transfer syntax
Assert.Throws <ArgumentException>(() => DicomSeriesInformationValidator.ValidateSliceInformation(SliceInformation.Create(dicomDataset), new[] { DicomTransferSyntax.DeflatedExplicitVRLittleEndian }));
// Add LUT Sequence
dicomDataset.Add(new DicomSequence(DicomTag.ModalityLUTSequence, new DicomDataset[0]));
Assert.Throws <ArgumentException>(() => DicomSeriesInformationValidator.ValidateSliceInformation(SliceInformation.Create(dicomDataset)));
// Remove LUT Sequence and set bits allocated to not 16
dicomDataset.Remove(DicomTag.ModalityLUTSequence);
DicomSeriesInformationValidator.ValidateSliceInformation(SliceInformation.Create(dicomDataset));
dicomDataset.AddOrUpdate(new DicomUnsignedShort(DicomTag.BitsAllocated, 12));
Assert.Throws <ArgumentException>(() => DicomSeriesInformationValidator.ValidateSliceInformation(SliceInformation.Create(dicomDataset)));
// Set bits allocated to 16, and updated photometric interpation to not MONOCHROME2
dicomDataset.AddOrUpdate(new DicomUnsignedShort(DicomTag.BitsAllocated, 16));
DicomSeriesInformationValidator.ValidateSliceInformation(SliceInformation.Create(dicomDataset));
dicomDataset.AddOrUpdate(new DicomCodeString(DicomTag.PhotometricInterpretation, "INVALID"));
Assert.Throws <ArgumentException>(() => DicomSeriesInformationValidator.ValidateSliceInformation(SliceInformation.Create(dicomDataset)));
// Set photometric interpation to MONOCHROME2 and change expected samples per pixel
dicomDataset.AddOrUpdate(new DicomCodeString(DicomTag.PhotometricInterpretation, DicomSeriesInformationValidator.ExpectedPhotometricInterpretation));
DicomSeriesInformationValidator.ValidateSliceInformation(SliceInformation.Create(dicomDataset));
dicomDataset.AddOrUpdate(new DicomUnsignedShort(DicomTag.SamplesPerPixel, DicomSeriesInformationValidator.ExpectedSamplesPerPixel + 1));
Assert.Throws <ArgumentException>(() => DicomSeriesInformationValidator.ValidateSliceInformation(SliceInformation.Create(dicomDataset)));
// Set samples per pixel to 1 and change the modality to not CT
dicomDataset.AddOrUpdate(new DicomUnsignedShort(DicomTag.SamplesPerPixel, DicomSeriesInformationValidator.ExpectedSamplesPerPixel));
DicomSeriesInformationValidator.ValidateSliceInformation(SliceInformation.Create(dicomDataset));
dicomDataset.AddOrUpdate(DicomTag.Modality, DicomConstants.MRModality);
Assert.Throws <ArgumentException>(() => DicomSeriesInformationValidator.ValidateSliceInformation(SliceInformation.Create(dicomDataset)));
// Set modality to CT and change the bits stored to highbit + 2
dicomDataset.AddOrUpdate(DicomTag.Modality, DicomConstants.CTModality);
DicomSeriesInformationValidator.ValidateSliceInformation(SliceInformation.Create(dicomDataset));
dicomDataset.AddOrUpdate(new DicomUnsignedShort(DicomTag.BitsStored, (ushort)(highBit + 2)));
Assert.Throws <ArgumentException>(() => DicomSeriesInformationValidator.ValidateSliceInformation(SliceInformation.Create(dicomDataset)));
}
public void TestVolumeInformationValidation()
{
var dicomDatasets = CreateValidDicomDatasetVolume(5, 5, 5, 1, 1, 3, new Point3D(), DicomUID.CTImageStorage, 16);
var acceptanceTest = new ModerateGeometricAcceptanceTest("Blah1", "Blah2");
// Valid DICOM slice.
DicomSeriesInformationValidator.ValidateVolumeInformation(
VolumeInformation.Create(dicomDatasets),
acceptanceTest,
new[] { dicomDatasets[0].InternalTransferSyntax });
// Inconsistent slice information.
var dicomDatasets2 = CreateValidDicomDatasetVolume(5, 5, 5, 1, 1, 3, new Point3D(), DicomUID.CTImageStorage, 16);
dicomDatasets2[dicomDatasets2.Length - 2].AddOrUpdate(new DicomUnsignedShort(DicomTag.Rows, 234));
var exception = Assert.Throws <ArgumentException>(() => DicomSeriesInformationValidator.ValidateVolumeInformation(
VolumeInformation.Create(dicomDatasets2),
acceptanceTest));
Assert.IsTrue(exception.Message.Contains("Slice at position '9' has an inconsistent height. Expected: '5', Actual: '234'."));
// Invalid supported transfer syntax
Assert.Throws <ArgumentException>(() => DicomSeriesInformationValidator.ValidateVolumeInformation(
VolumeInformation.Create(dicomDatasets),
acceptanceTest,
new[] { DicomTransferSyntax.DeflatedExplicitVRLittleEndian }));
// Failing acceptance test
Assert.Throws <ArgumentException>(() => DicomSeriesInformationValidator.ValidateVolumeInformation(
VolumeInformation.Create(dicomDatasets),
new FailingAcceptanceTest()));
// Exception testing
Assert.Throws <ArgumentNullException>(() => DicomSeriesInformationValidator.ValidateVolumeInformation(
VolumeInformation.Create(dicomDatasets),
null));
Assert.Throws <ArgumentNullException>(() => DicomSeriesInformationValidator.ValidateVolumeInformation(
null,
acceptanceTest));
}
