private void DoTestFinaliseTemplate()
{
using (Fake.CreateScope())
{
// PREPARE
m_Monitor.Reset();
IEnumerable <MinutiaRecord> minutae = m_ViewModel.Minutae.ToArray();
// Record the input minutia type before the operation
MinutiaType inputType = m_ViewModel.InputMinutiaType;
// EXECUTE:
byte[] template = m_IViewModel.FinaliseTemplate();
// ASSERT:
// First check that the template is correctly converted
CollectionAssert.AreEqual(
IsoTemplateHelper.ToIsoTemplate(minutae),
template);
// Check the workspace is cleared
Assert.AreEqual(CAPTURE_NO_TEMPLATE, m_ViewModel.Capture);
Assert.IsTrue(m_IViewModel.IsSaveTemplatePermitted);
Assert.AreEqual(minutae.Count(), m_ViewModel.Minutae.Count());
Assert.AreEqual(0, m_Monitor.GetEventResponses <UserActionRequiredEventArgs>("UserActionRequired").Count());
Assert.AreEqual(0, m_Monitor.GetEventResponses <PropertyChangedEventArgs>("PropertyChanged").Count());
Assert.AreEqual(inputType, m_ViewModel.InputMinutiaType);
}
}
public override void BeginTemplating(CaptureInfo capture)
{
// Prepare to start templating a new capture
// Clear the UI of any previous work
Outer.m_DispatcherHelper.Invoke(new Action(() =>
{
Outer.Minutae.Clear();
}));
// Record the new capture
Outer.Capture = capture;
if (Outer.Capture.TemplateData != null)
{
// If there is a template in the capture info, load it.
IEnumerable <MinutiaRecord> template = IsoTemplateHelper
.ToMinutae(Outer.Capture.TemplateData);
foreach (MinutiaRecord rec in template)
{
// Ensure we use the UI thread to add to the ObservableCollection.
App.Current.Dispatcher.Invoke(new Action(() =>
{
Outer.Minutae.Add(rec);
}));
}
}
TransitionTo(typeof(WaitLocation));
}
private void TestToIsoTemplate(IEnumerable <MinutiaRecord> minutae, string isoTemplateHex)
{
// Get the IsoTemplate
byte[] template = IsoTemplateHelper.ToIsoTemplate(minutae);
// Convert the IsoTemplate back to a list of minutia (loss of data in casting)
IEnumerable <MinutiaRecord> convert_minutae = IsoTemplateHelper.ToMinutae(template);
// Convert it to Hex for comparison
string templateHex = BitConverter.ToString(template);
templateHex = templateHex.Replace("-", String.Empty);
// Assertions
CollectionAssert.AreEqual(IsoTemplateHelper.ToByteArray(isoTemplateHex), template);
Assert.AreEqual(minutae.Count(), convert_minutae.Count());
for (int i = 0; i < convert_minutae.Count(); i++)
{
MinutiaRecord real_minutia = minutae.ElementAt(i);
MinutiaRecord converted_minutia = convert_minutae.ElementAt(i);
Assert.AreEqual((int)real_minutia.Position.X, converted_minutia.Position.X);
Assert.AreEqual((int)real_minutia.Position.Y, converted_minutia.Position.Y);
// y(x,a) = ax - floor(ax)
// max(y(x,a)) = 1, min(y(x,a)) = 0
// e(x,a) = x - x_hat = 1/a * floor(ax) = 1/a * y(x,a)
// Thus max(e(x,a)) = 1/a, min(e(x,a)) = 0
Assert.IsTrue(real_minutia.Angle - converted_minutia.Angle < 1.0 / (256 / 360));
}
}
public void TestConvertNullToIsoTemplate()
{
SimTemplateException m_Exception = null;
try
{
byte[] template = IsoTemplateHelper.ToIsoTemplate(null);
}
catch (SimTemplateException ex)
{
m_Exception = ex;
}
Assert.IsNotNull(m_Exception);
}
public static CaptureInfo ToCaptureInfo(XElement captureEl)
{
XElement imageLocationEl = captureEl.Element(ELEMENT_IMAGE_LOCATION);
XElement dbIdEl = captureEl.Element(ELEMENT_DB_ID);
XElement templateEl = captureEl.Element(ELEMENT_TEMPLATE);
// Assert xml structure is as expected
CheckElementNotNull(imageLocationEl, ELEMENT_IMAGE_LOCATION);
CheckElementNotNull(dbIdEl, ELEMENT_DB_ID);
CheckElementNotNull(templateEl, ELEMENT_TEMPLATE);
// Get info from elements
Uri imageLocation;
bool isUriParsed = Uri.TryCreate(imageLocationEl.Value, UriKind.Absolute, out imageLocation);
if (!isUriParsed)
{
throw new SimTemplateException(
String.Format("Failed to parse image URL string ({0}) to Uri", imageLocationEl.Value));
}
long dbId;
bool isIdParsed = long.TryParse(dbIdEl.Value, out dbId);
if (!isIdParsed)
{
throw new SimTemplateException(
String.Format("Failed to parse capture ID string ({0}) to long", dbIdEl.Value));
}
byte[] templateData = null;
if (!String.IsNullOrEmpty(templateEl.Value))
{
templateData = IsoTemplateHelper.ToByteArray(templateEl.Value);
}
byte[] imageData;
// Get image file from url
using (WebClient webClient = new WebClient())
{
imageData = webClient.DownloadData(imageLocation);
}
return(new CaptureInfo(dbId, imageData, templateData));
}
public override byte[] GetTemplate()
{
// Return template in ISO template format.
return(IsoTemplateHelper.ToIsoTemplate(Outer.Minutae));
}
