[test] test treeindex with array index in formula

Author: ferdymercury

roottest/root/tree/index/Makefile

@@ -7,22 +7,22 @@ CLEAN_TARGETS += $(ALL_LIBRARIES) *.log *.clog newTestFile.root index64.root ind
 # only target added.  If the name of the target is changed in the rules then
 # the name should be changed accordingly in this list.
 
-TEST_TARGETS += chain mytest index64 indexl64
+TEST_TARGETS += chain mytest index64 indexl64 varsizearr
 
 # Search for Rules.mk in roottest/scripts
 # Algorithm:  Find the current working directory and remove everything after
-#  '*roottest/'.  Append the path for Rules.mk from within roottest, which 
+#  '*roottest/'.  Append the path for Rules.mk from within roottest, which
 #  should be 'scripts/Rules.mk'.  The roottest path is saved in the
-#  ROOTTEST_HOME variable for use by the SUBDIRECTORIES variable and is 
-#  exported to eliminate the overhead of findding the path again during 
+#  ROOTTEST_HOME variable for use by the SUBDIRECTORIES variable and is
+#  exported to eliminate the overhead of findding the path again during
 #  recursive calls of gmake.
 # Since all makefiles should be under roottest or one of its
-#  subdirectories and all recursions of gmake are called by 
+#  subdirectories and all recursions of gmake are called by
 #    'cd [DIR]; gmake ...'
 #  this algorithm should not fail in finding /roottest/ in the
-#  current working directory.  
-# Issues:  This algorithm will fail if a makefile is called from outside the 
-#  roottest folder, as in executing 'gmake -f ~/roottest/Makefile' from 
+#  current working directory.
+# Issues:  This algorithm will fail if a makefile is called from outside the
+#  roottest folder, as in executing 'gmake -f ~/roottest/Makefile' from
 #  the home directory.
 
 ifeq ($(strip $(ROOTTEST_HOME)),)
@@ -75,4 +75,9 @@ chain: chain.log
 index64: index64.log
 	$(TestDiff)
 
+indexl64: indexl64.log
+	$(TestDiff)
+
+varsizearr: varsizearr.log
+	$(TestDiff)
 

roottest/root/tree/index/runvarsizearr.C

@@ -0,0 +1,30 @@
+#include "TTree.h"
+#include "TTreeIndex.h"
+#include <vector>
+#include <iostream>
+
+int runvarsizearr()
+{
+   const Long64_t nEvents = 2;
+   const size_t nElements = 3;
+   std::vector<int> otherNumbers(nElements);
+   Long64_t eventNumber;
+   TTree t("tree", "tree");
+   t.Branch("eventNumber", &eventNumber);
+   t.Branch("otherNumbers", &otherNumbers);
+   for (Long64_t i = 0; i < nEvents; i++) {
+      eventNumber = i;
+      for (size_t j = 0; j < nElements; ++j)
+         otherNumbers[j] = -2. * eventNumber + 3500 * j;
+      t.Fill();
+   }
+   std::cout << t.GetEntries() << std::endl;
+   // use Scan to show what otherNumbers[2] contains
+   t.Scan("eventNumber:otherNumbers", "", "", nEvents);
+
+   TTreeIndex firstIndex(&t, "otherNumbers[2]", "eventNumber");
+   firstIndex.Print("2"); // wasn't working before: major was always a garbage value
+   TTreeIndex secondIndex(&t, "otherNumbers", "eventNumber");
+   secondIndex.Print("2"); // major is always otherNumbers[0] since index not specified (before and after fix)
+   return 0;
+}

roottest/root/tree/index/varsizearr.ref

@@ -0,0 +1,30 @@
+
+Processing runvarsizearr.C...
+2
+***********************************************
+*    Row   * Instance * eventNumb * otherNumb *
+***********************************************
+*        0 *        0 *         0 *         0 *
+*        0 *        1 *         0 *      3500 *
+*        0 *        2 *         0 *      7000 *
+*        1 *        0 *         1 *        -2 *
+*        1 *        1 *         1 *      3498 *
+*        1 *        2 *         1 *      6998 *
+***********************************************
+
+**********************************************
+*    Index of Tree: tree/tree
+**********************************************
+  serial :  otherNumbers[2] :      eventNumber
+**********************************************
+       0 :             6998 :                1
+       1 :             7000 :                0
+
+**********************************************
+*    Index of Tree: tree/tree
+**********************************************
+  serial :     otherNumbers :      eventNumber
+**********************************************
+       0 :               -2 :                1
+       1 :                0 :                0
+(int) 0