[test] test for entrylist within zip file

Author: ferdymercury

roottest/root/tree/entrylist/cernstaff.zip

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+#include "TChain.h"
+#include "TDirectory.h"
+#include "TEntryList.h"
+
+// First run: root $ROOTSYS/tutorials/tree/cernbuild.C
+// Then run: zip -n root cernstaff cernstaff.root
+
+int execTEntryListZip()
+{
+   TChain chain("T");
+   chain.Add("cernstaff.zip#cernstaff.root");
+   chain.Draw(">> elist0", "Age > 40", "entrylist");
+
+   // gDirectory->ls();
+   auto el = static_cast<TEntryList *>(gDirectory->Get("elist0"));
+   if (!el)
+      return 2;
+   // el->Print("V");
+
+   chain.SetEntryList(nullptr);
+   chain.SetEntryList(el, "");
+
+   return (el == chain.GetEntryList()) ? 0 : 1;
+}

roottest/root/tree/entrylist/execTEntryListZip.cxx

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+
+Processing execTEntryListZip.cxx+...
+(int) 0