diff -N CalorimeterHitDetectorElementDriverTest.java
--- /dev/null	1 Jan 1970 00:00:00 -0000
+++ CalorimeterHitDetectorElementDriverTest.java	18 Mar 2009 03:24:44 -0000	1.1
@@ -0,0 +1,81 @@

+package org.lcsim.calorimeter;
+
+import java.io.File;
+import java.net.URL;
+import java.util.List;
+
+import junit.framework.TestCase;
+
+import org.lcsim.detector.identifier.IIdentifierHelper;
+import org.lcsim.event.CalorimeterHit;
+import org.lcsim.event.EventHeader;
+import org.lcsim.util.Driver;
+import org.lcsim.util.cache.FileCache;
+import org.lcsim.util.loop.LCSimLoop;
+
+/**
+ * Tests that the CalorimeterHitDetectorElementDriver sets up DetectorElements
+ * for all CalorimeterHits.
+ * @author Jeremy McCormick <[log in to unmask]>
+ */
+public class CalorimeterHitDetectorElementDriverTest extends TestCase 
+{
+	private static final boolean DEBUG = false;
+	
+	public void testHits() throws Exception
+	{
+		URL url = new URL("http://www.lcsim.org/test/lcio/panpyWW-0-500_SLIC-v2r5p4_geant4-v9r2p0_LCPhys_sid02.slcio");
+		FileCache cache = new FileCache();
+		File testFile = cache.getCachedFile(url);
+		LCSimLoop loop = new LCSimLoop();
+		loop.setLCIORecordSource(testFile);
+		loop.add(new CalorimeterTestDriver());		
+		loop.loop(-1);
+		loop.dispose();
+	}
+	
+	class CalorimeterTestDriver extends Driver
+	{
+		CalorimeterTestDriver()
+		{
+			add(new CalorimeterHitDetectorElementDriver());
+		}
+		
+		public void process(EventHeader event)
+		{
+			long start = System.currentTimeMillis();
+			super.process(event);
+			long elapsed = System.currentTimeMillis() - start;
+			int nhits = 0;
+			for (List<CalorimeterHit> coll : event.get(CalorimeterHit.class))
+			{												
+				for (CalorimeterHit hit : coll)
+				{
+					// Hit must have a DetectorElement.
+					assert(hit.getDetectorElement() != null);
+					IIdentifierHelper helper = hit.getIdentifierHelper();
+
+					// Verbose debug print of DetectorElement name and hit's expanded identifier.
+					if (DEBUG)
+						System.out.println(hit.getDetectorElement().getName() + " - " + hit.getIdentifierHelper().unpack(hit.getIdentifier()));
+								
+					// CalorimeterHits are currently linked to their layer,
+					// so layer number should match the DetectorElement's.
+					int layern = helper.getValue(hit.getIdentifier(), "layer");
+					
+					// TODO: Replace with comparison against DetectorElement's identifier
+					//       once CylindricalCalorimeter sensors have them.
+					if (!hit.getDetectorElement().getName().contains("layer"+layern))
+					{
+						throw new RuntimeException(
+								"The layer number <" + layern + "> of the hit and does not match DetectorElement <" + hit.getDetectorElement().getName() + ">."); 
+					}
+					
+					++nhits;
+				}
+			}
+			System.out.println("Took " + elapsed + " ms on " + nhits + " hits.");
+			System.out.println("ms / hit = " + ((double)elapsed)/((double)nhits));
+		}		
+	}
+}

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