public async Task GivenStoredInstances_WhenRetrieveRequestForInstance_ThenInstanceIsRetrievedSuccessfully()
{
// Add multiple instances to validate that we return the requested instance and ignore the other(s).
List <VersionedInstanceIdentifier> versionedInstanceIdentifiers = SetupInstanceIdentifiersList(ResourceType.Instance);
// For the first instance identifier, set up the fileStore to return a stream containing a file associated with the identifier.
KeyValuePair <DicomFile, Stream> streamAndStoredFile = StreamAndStoredFileFromDataset(GenerateDatasetsFromIdentifiers(versionedInstanceIdentifiers.First())).Result;
_fileStore.GetFileAsync(streamAndStoredFile.Key.Dataset.ToVersionedInstanceIdentifier(0), DefaultCancellationToken).Returns(streamAndStoredFile.Value);
RetrieveResourceResponse response = await _retrieveResourceService.GetInstanceResourceAsync(
new RetrieveResourceRequest(
_studyInstanceUid,
_firstSeriesInstanceUid,
_sopInstanceUid,
new[] { AcceptHeaderHelpers.CreateAcceptHeaderForGetInstance() }),
DefaultCancellationToken);
// Validate response status code and ensure response stream has expected file - it should be equivalent to what the store was set up to return.
ValidateResponseStreams(new List <DicomFile>()
{
streamAndStoredFile.Key
}, response.ResponseStreams);
// Dispose created streams.
streamAndStoredFile.Value.Dispose();
}
public void GivenRetrieveResourcesRequestForInstance_WhenConstructed_ThenInstanceResourceTypeIsSet()
{
var request = new RetrieveResourceRequest(
TestUidGenerator.Generate(),
TestUidGenerator.Generate(),
TestUidGenerator.Generate(),
new[] { AcceptHeaderHelpers.CreateAcceptHeaderForGetInstance(transferSyntax: string.Empty) });
Assert.Equal(ResourceType.Instance, request.ResourceType);
}
public async Task GivenStoredInstancesWithMissingFile_WhenRetrieveRequestForInstance_ThenNotFoundIsThrown()
{
// Add multiple instances to validate that we return the requested instance and ignore the other(s).
List <VersionedInstanceIdentifier> versionedInstanceIdentifiers = SetupInstanceIdentifiersList(ResourceType.Instance);
// For the first instance identifier, set up the fileStore to throw a store exception with the status code 404 (NotFound).
_fileStore.GetFileAsync(versionedInstanceIdentifiers.First(), DefaultCancellationToken).Throws(new InstanceNotFoundException());
await Assert.ThrowsAsync <InstanceNotFoundException>(() => _retrieveResourceService.GetInstanceResourceAsync(
new RetrieveResourceRequest(_studyInstanceUid, _firstSeriesInstanceUid, _sopInstanceUid, new[] { AcceptHeaderHelpers.CreateAcceptHeaderForGetInstance() }),
DefaultCancellationToken));
}
public async Task GivenNoStoredInstances_WhenRetrieveRequestForInstance_ThenNotFoundIsThrown()
{
_instanceStore.GetInstanceIdentifierAsync(_studyInstanceUid, _firstSeriesInstanceUid, _sopInstanceUid).Returns(new List <VersionedInstanceIdentifier>());
await Assert.ThrowsAsync <InstanceNotFoundException>(() => _retrieveResourceService.GetInstanceResourceAsync(
new RetrieveResourceRequest(_studyInstanceUid, _firstSeriesInstanceUid, _sopInstanceUid, new[] { AcceptHeaderHelpers.CreateAcceptHeaderForGetInstance() }),
DefaultCancellationToken));
}
public async Task GivenARequestWithInvalidInstanceIdentifier_WhenRetrievingInstance_ThenDicomInvalidIdentifierExceptionIsThrown(string sopInstanceUid)
{
EnsureArg.IsNotNull(sopInstanceUid, nameof(sopInstanceUid));
RetrieveResourceRequest request = new RetrieveResourceRequest(TestUidGenerator.Generate(), TestUidGenerator.Generate(), sopInstanceUid, new[] { AcceptHeaderHelpers.CreateAcceptHeaderForGetInstance() });
var ex = await Assert.ThrowsAsync <InvalidIdentifierException>(() => _retrieveResourceHandler.Handle(request, CancellationToken.None));
Assert.Equal($"DICOM Identifier 'SopInstanceUid' value '{sopInstanceUid.Trim()}' is invalid. Value length should not exceed the maximum length of 64 characters. Value should contain characters in '0'-'9' and '.'. Each component must start with non-zero number.", ex.Message);
}
public async Task GivenIncorrectTransferSyntax_WhenRetrievingStudy_ThenDicomBadRequestExceptionIsThrownAsync(string transferSyntax)
{
var request = new RetrieveResourceRequest(TestUidGenerator.Generate(), new[] { AcceptHeaderHelpers.CreateAcceptHeaderForGetInstance(transferSyntax: transferSyntax) });
var ex = await Assert.ThrowsAsync <BadRequestException>(() => _retrieveResourceHandler.Handle(request, CancellationToken.None));
Assert.Equal("The specified Transfer Syntax value is not valid.", ex.Message);
}
public async Task GivenARequestWithInvalidInstanceIdentifier_WhenRetrievingInstance_ThenDicomInvalidIdentifierExceptionIsThrown(string sopInstanceUid)
{
EnsureArg.IsNotNull(sopInstanceUid, nameof(sopInstanceUid));
RetrieveResourceRequest request = new RetrieveResourceRequest(TestUidGenerator.Generate(), TestUidGenerator.Generate(), sopInstanceUid, new[] { AcceptHeaderHelpers.CreateAcceptHeaderForGetInstance() });
await Assert.ThrowsAsync <InvalidIdentifierException>(() => _retrieveResourceHandler.Handle(request, CancellationToken.None));
}