From d6043c3e2355a77b61a797b18cc6ab1335b7e652 Mon Sep 17 00:00:00 2001
From: Jonas Rembser <jonas.rembser@cern.ch>
Date: Sat, 22 Oct 2022 02:03:47 +0200
Subject: [PATCH] [RF] Force BatchMode `off` in test that covers legacy test
 statistics

---
 roofit/roofitcore/test/testTestStatistics.cxx | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/roofit/roofitcore/test/testTestStatistics.cxx b/roofit/roofitcore/test/testTestStatistics.cxx
index cee0b9855908e..70541912b963c 100644
--- a/roofit/roofitcore/test/testTestStatistics.cxx
+++ b/roofit/roofitcore/test/testTestStatistics.cxx
@@ -308,8 +308,10 @@ TEST(RooNLLVar, CopyRangedNLL)
 
    std::unique_ptr<RooDataSet> ds{model.generate(x, 20)};
 
-   std::unique_ptr<RooNLLVar> nll{static_cast<RooNLLVar *>(model.createNLL(*ds))};
-   std::unique_ptr<RooNLLVar> nllrange{static_cast<RooNLLVar *>(model.createNLL(*ds, RooFit::Range("fitrange")))};
+   // This bug is related to the implementation details of the old test statistics, so BatchMode is forced to be off
+   using namespace RooFit;
+   std::unique_ptr<RooNLLVar> nll{static_cast<RooNLLVar *>(model.createNLL(*ds, BatchMode("off")))};
+   std::unique_ptr<RooNLLVar> nllrange{static_cast<RooNLLVar *>(model.createNLL(*ds, Range("fitrange"), BatchMode("off")))};
 
    auto nllClone = std::make_unique<RooNLLVar>(*nll);
    auto nllrangeClone = std::make_unique<RooNLLVar>(*nllrange);