mitkTrackingDeviceSourceTest.cpp
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00001 /*========================================================================= 00002 00003 Program: Medical Imaging & Interaction Toolkit 00004 Language: C++ 00005 Date: $Date: 2009-05-13 14:52:01 +0200 (Mi, 13. Mai 2009) $ 00006 Version: $Revision: 17230 $ 00007 00008 Copyright (c) German Cancer Research Center, Division of Medical and 00009 Biological Informatics. All rights reserved. 00010 See MITKCopyright.txt or https://www.mitk.org/copyright.html for details. 00011 00012 This software is distributed WITHOUT ANY WARRANTY; without even 00013 the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 00014 PURPOSE. See the above copyright notices for more information. 00015 00016 =========================================================================*/ 00017 00018 #include "mitkTrackingDeviceSource.h" 00019 #include "mitkVirtualTrackingDevice.h" 00020 00021 #include "mitkTestingMacros.h" 00022 #include <mitkReferenceCountWatcher.h> 00023 #include "itksys/SystemTools.hxx" 00024 00028 int mitkTrackingDeviceSourceTest(int /* argc */, char* /*argv*/[]) 00029 { 00030 MITK_TEST_BEGIN("TrackingDeviceSource"); 00031 00032 // let's create an object of our class 00033 mitk::TrackingDeviceSource::Pointer mySource = mitk::TrackingDeviceSource::New(); 00034 00035 // first test: did this work? 00036 // using MITK_TEST_CONDITION_REQUIRED makes the test stop after failure, since 00037 // it makes no sense to continue without an object. 00038 MITK_TEST_CONDITION_REQUIRED(mySource.IsNotNull(), "Testing instantiation"); 00039 00040 mySource->SetTrackingDevice(NULL); 00041 MITK_TEST_CONDITION(mySource->GetTrackingDevice() == NULL, "Testing Set/GetTrackingDevice(NULL)"); 00042 MITK_TEST_CONDITION(mySource->GetNumberOfOutputs() == 0, "Testing GetNumberOfOutputs with NULL td"); 00043 MITK_TEST_FOR_EXCEPTION(std::invalid_argument, mySource->Connect()); 00044 MITK_TEST_FOR_EXCEPTION(std::invalid_argument, mySource->StartTracking()); 00045 00046 mitk::VirtualTrackingDevice::Pointer tracker = mitk::VirtualTrackingDevice::New(); 00047 00048 00049 mySource->SetTrackingDevice(tracker); 00050 MITK_TEST_CONDITION(mySource->GetTrackingDevice() == tracker.GetPointer(), "Testing Set/GetTrackingDevice(tracker)"); 00051 MITK_TEST_CONDITION(mySource->GetNumberOfOutputs() == 0, "Testing GetNumberOfOutputs with no tool tracker"); 00052 tracker = mitk::VirtualTrackingDevice::New(); 00053 mitk::ReferenceCountWatcher::Pointer watch = new mitk::ReferenceCountWatcher(tracker); 00054 00055 tracker->AddTool("T0"); 00056 tracker->AddTool("T1"); 00057 mySource->SetTrackingDevice(tracker); 00058 MITK_TEST_CONDITION(mySource->GetTrackingDevice() == tracker.GetPointer(), "Testing Set/GetTrackingDevice(tracker2)"); 00059 MITK_TEST_CONDITION(mySource->GetNumberOfOutputs() == 2, "Testing GetNumberOfOutputs with 2 tools tracker"); 00060 MITK_TEST_CONDITION(mySource->IsConnected() == false, "Testing IsConnected()"); 00061 mySource->Connect(); 00062 MITK_TEST_CONDITION(mySource->IsConnected() == true, "Testing Connect()/IsConnected()"); 00063 MITK_TEST_CONDITION(tracker->GetState() == mitk::TrackingDevice::Ready, "Testing Connect()/IsConnected() 2"); 00064 mySource->Disconnect(); 00065 MITK_TEST_CONDITION(mySource->IsConnected() == false, "Testing Disconnect()/IsConnected()"); 00066 MITK_TEST_CONDITION(tracker->GetState() == mitk::TrackingDevice::Setup, "Testing Disconnect()/IsConnected() 2"); 00067 00068 mySource->Connect(); 00069 mySource->StartTracking(); 00070 MITK_TEST_CONDITION(mySource->IsConnected() == true, "Testing StartTracking()/IsConnected()"); 00071 MITK_TEST_CONDITION(mySource->IsTracking() == true, "Testing StartTracking()/IsTracking()"); 00072 MITK_TEST_CONDITION(tracker->GetState() == mitk::TrackingDevice::Tracking, "Testing StartTracking()/IsTracking() 2"); 00073 00074 unsigned long modTime = mySource->GetMTime(); 00075 mySource->UpdateOutputInformation(); 00076 MITK_TEST_CONDITION(mySource->GetMTime() != modTime, "Testing if UpdateOutputInformation() modifies the object"); 00077 00078 mitk::NavigationData* nd0 = mySource->GetOutput(0); 00079 00080 nd0->Update(); 00081 mitk::NavigationData::PositionType pos = nd0->GetPosition(); 00082 itksys::SystemTools::Delay(500); // allow the tracking thread to advance the tool position 00083 nd0->Update(); 00084 MITK_TEST_CONDITION(mitk::Equal(nd0->GetPosition(), pos) == false, "Testing if output changes on each update"); 00085 mitk::NavigationData* nd1 = mySource->GetOutput(1); 00086 MITK_TEST_CONDITION(nd0 != nd1, "Testing if outputs are different"); 00087 MITK_TEST_CONDITION(mitk::Equal(nd0->GetPosition(), nd1->GetPosition()) == false, "Testing if output contents are different"); 00088 00089 mySource->StopTracking(); 00090 mySource->Disconnect(); 00091 00092 tracker = mitk::VirtualTrackingDevice::New(); 00093 mySource->SetTrackingDevice(tracker); 00094 MITK_TEST_CONDITION(watch->GetReferenceCount() == 0, "Testing if reference to previous tracker object is released"); 00095 watch = NULL; 00096 00097 MITK_TEST_FOR_EXCEPTION(std::runtime_error, mySource->StartTracking()); // new tracker, needs Connect() before StartTracking() 00098 00099 mySource->Connect(); 00100 mySource->StartTracking(); 00101 // itksys::SystemTools::Delay(800); // wait for tracking thread to start properly //DEBUG ONLY --> race condition. will the thread start before the object is destroyed? --> maybe hold a smartpointer? 00102 try 00103 { 00104 mySource = NULL; // delete source 00105 tracker = NULL; // delete tracker --> both should not result in any exceptions or deadlocks 00106 } 00107 catch (...) 00108 { 00109 MITK_TEST_FAILED_MSG(<< "exception during destruction of source or tracker!"); 00110 } 00111 00112 // always end with this! 00113 MITK_TEST_END(); 00114 }
