[tests][facet] Use constexpr if for gg construction

5 jobs for !2737 with feature/gridgeometry-update-gridview
latest detached
Status Name Job ID Coverage
  Trigger
passed full-dune-2.7-clang

passed full-dune-2.7-gcc

passed full-dune-master-gcc

passed minimal-dune-2.7-gcc

 
  Downstream Modules
passed trigger lecture