message: Add test for accumulation of integrators in LinearFormExtension
diff: @@ -105,6 +105,13 @@ struct LinearFormExtTest
  lfi_std->SetIntRule(gll ? irGLL : ir);
  }
  + // Test accumulation of integrators
  + if (vdim == 1)
  + {
  + lf_dev.AddDomainIntegrator(new DomainLFIntegrator(cst_coeff));
  + lf_std.AddDomainIntegrator(new DomainLFIntegrator(cst_coeff));
  + }
  +
  lf_dev.AddDomainIntegrator(lfi_dev, elem_marker);
  lf_std.AddDomainIntegrator(lfi_std, elem_marker);
  }
  