Create unit test re #7396

Signed-off-by: Karl Palmen <karl.palmen@stfc.ac.uk>

Code/Mantid/Framework/DataHandling/CMakeLists.txt

@@ -288,6 +288,7 @@ set ( TEST_FILES
 	LoadEventPreNexusTest.h
 	LoadFullprofResolutionTest.h
 	LoadGSSTest.h
+	LoadIDFFromNexusTest.h
 	LoadILLSANSTest.h
 	LoadILLTest.h
 	LoadISISNexusTest.h

Code/Mantid/Framework/DataHandling/test/LoadIDFFromNexusTest.h

@@ -0,0 +1,129 @@
+#ifndef LOADINSTRUMENTTESTFROMRAW_H_
+#define LOADINSTRUMENTTESTFROMRAW_H_
+
+#include <cxxtest/TestSuite.h>
+
+#include "MantidDataHandling/LoadIDFFromNexus.h"
+#include "MantidAPI/WorkspaceFactory.h"
+#include "MantidGeometry/Instrument.h"
+#include "MantidDataObjects/Workspace2D.h"
+#include "MantidAPI/AnalysisDataService.h"
+#include "MantidKernel/Exception.h"
+#include "MantidAPI/FrameworkManager.h"
+#include "MantidAPI/Workspace.h"
+#include "MantidAPI/Algorithm.h"
+#include "MantidGeometry/Instrument/Component.h"
+#include <vector>
+
+using namespace Mantid::API;
+using namespace Mantid::Kernel;
+using namespace Mantid::Geometry;
+using namespace Mantid::DataHandling;
+using namespace Mantid::DataObjects;
+
+class LoadIDFFromNexusTest : public CxxTest::TestSuite
+{
+public:
+
+  static LoadIDFFromNexusTest *createSuite() { return new LoadIDFFromNexusTest(); }
+  static void destroySuite(LoadIDFFromNexusTest *suite) { delete suite; }
+
+  LoadIDFFromNexusTest()
+  {
+  }
+
+  void testInit()
+  {
+    TS_ASSERT( !loader.isInitialized() );
+    TS_ASSERT_THROWS_NOTHING(loader.initialize());
+    TS_ASSERT( loader.isInitialized() );
+  }
+
+  void testExec()
+  {
+    if ( !loader.isInitialized() ) loader.initialize();
+
+    //create a workspace with some sample data
+    wsName = "LoadIDFFromNexusTest";
+    Workspace_sptr ws = WorkspaceFactory::Instance().create("Workspace2D",1,1,1);
+    Workspace2D_sptr ws2D = boost::dynamic_pointer_cast<Workspace2D>(ws);
+
+    //put this workspace in the data service
+    TS_ASSERT_THROWS_NOTHING(AnalysisDataService::Instance().add(wsName, ws2D));
+
+    // set properties
+    loader.setPropertyValue("Workspace", wsName);
+    loader.setPropertyValue("Filename", "LOQ48127.nxs");
+    loader.setPropertyValue("InstrumentParentPath","mantid_workspace_1"); 
+    inputFile = loader.getPropertyValue("Filename"); // get full pathname
+
+    // check properties
+    std::string result;
+    TS_ASSERT_THROWS_NOTHING( result = loader.getPropertyValue("Filename") )
+    TS_ASSERT( ! result.compare(inputFile));
+
+    TS_ASSERT_THROWS_NOTHING( result = loader.getPropertyValue("Workspace") )
+    TS_ASSERT( ! result.compare(wsName));
+
+    TS_ASSERT_THROWS_NOTHING( result = loader.getPropertyValue("InstrumentParentPath") )
+    TS_ASSERT( ! result.compare("mantid_workspace_1"));
+
+    // execute
+    TS_ASSERT_THROWS_NOTHING(loader.execute());
+    TS_ASSERT( loader.isExecuted() );
+
+    // Get back the saved workspace
+    MatrixWorkspace_sptr output;
+    TS_ASSERT_THROWS_NOTHING(output = AnalysisDataService::Instance().retrieveWS<MatrixWorkspace>(wsName));
+
+    boost::shared_ptr<const Instrument> i = output->getInstrument();
+    TS_ASSERT_EQUALS( i->getName(), "LOQ");
+    boost::shared_ptr<const IComponent> source = i->getSource();
+    TS_ASSERT_EQUALS( source->getName(), "source");
+    TS_ASSERT_DELTA( source->getPos().Z(), 0.0,0.01);
+
+    boost::shared_ptr<const IComponent> samplepos = i->getSample();
+    TS_ASSERT_EQUALS( samplepos->getName(),"some-sample-holder");
+    TS_ASSERT_DELTA( samplepos->getPos().Z(), 11.0,0.01);
+
+    // test third pixel in main detector bank, which has indices (2,0)
+    boost::shared_ptr<const Detector> ptrDetMain = boost::dynamic_pointer_cast<const Detector>(i->getDetector(5));
+    TS_ASSERT_EQUALS( ptrDetMain->getID(), 5);
+    TS_ASSERT_EQUALS( ptrDetMain->getName(), "main-detector-bank(2,0)");
+    TS_ASSERT_DELTA( ptrDetMain->getPos().X(), -0.3035,0.0001); 
+    TS_ASSERT_DELTA( ptrDetMain->getPos().Y(), -0.3124,0.0001);
+    double d = ptrDetMain->getPos().distance(samplepos->getPos());
+    TS_ASSERT_DELTA(d, 4.1727, 0.0001);
+    double cmpDistance = ptrDetMain->getDistance(*samplepos);
+    TS_ASSERT_DELTA(cmpDistance, 4.1727, 0.0001);
+
+    TS_ASSERT_EQUALS( ptrDetMain->type(), "RectangularDetectorPixel");
+
+    // also a few tests on a HAB pixel detector
+    boost::shared_ptr<const Detector> ptrDetHab = boost::dynamic_pointer_cast<const Detector>(i->getDetector(16734));
+    TS_ASSERT_EQUALS( ptrDetHab->getID(), 16734);
+    TS_ASSERT_EQUALS( ptrDetHab->getName(), "HAB-pixel");
+    // test a non-existant detector
+    TS_ASSERT_THROWS(i->getDetector(16735), Exception::NotFoundError);
+
+    // Check the monitors are correctly marked
+    TS_ASSERT( i->getDetector(1)->isMonitor() )
+    TS_ASSERT( i->getDetector(2)->isMonitor() )
+    // ...and that a normal detector isn't
+    TS_ASSERT( ! i->getDetector(3)->isMonitor() )
+    TS_ASSERT( ! i->getDetector(300)->isMonitor() )
+    TS_ASSERT( ! i->getDetector(16500)->isMonitor() )
+
+	AnalysisDataService::Instance().remove(wsName);
+  }
+
+
+
+private:
+  LoadIDFFromNexus loader;
+  std::string inputFile;
+  std::string wsName;
+
+};
+
+#endif /*LOADINSTRUMENTTESTFROMRAW_H_*/