mitkCameraVisualizationTest.cpp

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/*============================================================================
 
The Medical Imaging Interaction Toolkit (MITK)
 
Copyright (c) German Cancer Research Center (DKFZ)
All rights reserved.
 
Use of this source code is governed by a 3-clause BSD license that can be
found in the LICENSE file.
 
============================================================================*/
 
#include "mitkCameraVisualization.h"
#include "mitkNavigationData.h"
#include "mitkTestingMacros.h"
#include "mitkVtkPropRenderer.h"
 
#include <vtkRenderer.h>
#include <vtkRenderWindow.h>
 
#include <ctime>
 
int mitkCameraVisualizationTest(int /* argc */, char* /*argv*/[])
{
  MITK_TEST_BEGIN("CameraVisualization")
 
  // let's create an object of our class
  mitk::CameraVisualization::Pointer myFilter = mitk::CameraVisualization::New();
 
  // first test: did this work?
  // using MITK_TEST_CONDITION_REQUIRED makes the test stop after failure, since
  // it makes no sense to continue without an object.
  MITK_TEST_CONDITION_REQUIRED(myFilter.IsNotNull(),"Testing instantiation");
 
  /* create helper objects: navigation data with position as origin, zero quaternion, zero error and data valid */
  srand(time(nullptr));
  // generate a random position for the navigation data
  mitk::NavigationData::PositionType position;
  position[0] = rand()%1000;
  position[1] = rand()%1000;
  position[2] = rand()%1000;
 
  // generate a random orientation for the navigation data
  mitk::NavigationData::OrientationType orientation;
  orientation[0] = (rand()%1000)/1000.0;
  orientation[1] = (rand()%1000)/1000.0;
  orientation[2] = (rand()%1000)/1000.0;
  orientation[3] = (rand()%1000)/1000.0;
 
  // generate a random error for the navigation data
  mitk::ScalarType error = rand()%10;
 
  // data valid flag of navigation data
  int val = rand()%2;
  bool valid(false); // this was uninitialized. how was this test ever meant to work??
  if (val==0)
  {
    valid=false;
  }
  else if (val==1)
  {
    valid=true;
  }
 
  // set parameters of navigation data
  mitk::NavigationData::Pointer nd1 = mitk::NavigationData::New();
  nd1->SetPosition(position);
  nd1->SetOrientation(orientation);
  nd1->SetPositionAccuracy(error);
  nd1->SetDataValid(valid);
 
  // create renderer
  vtkRenderWindow* renderWindow = vtkRenderWindow::New();
  mitk::VtkPropRenderer::Pointer renderer = mitk::VtkPropRenderer::New( "TestRenderer", renderWindow );
 
  myFilter->SetInput(nd1);
  MITK_TEST_CONDITION(myFilter->GetInput() == nd1, "Testing Set-/GetInput() input 1");
 
  // test for exception if renderer not set
  MITK_TEST_FOR_EXCEPTION_BEGIN(itk::ExceptionObject)
    myFilter->Update();
  MITK_TEST_FOR_EXCEPTION_END(itk::ExceptionObject)
 
  // set renderer
  myFilter->SetRenderer(renderer);
 
  //Update filter
  myFilter->Update();
 
  //Delete renderWindow correctly
  renderWindow->Delete();
 
  // always end with this!
  MITK_TEST_END();
 
}