FEM: gmsh tools, fix writing groups and reactivate unit test for solve frame work

src/Mod/Fem/TestFem.py

@@ -35,7 +35,7 @@ from femtest.testmesh import TestMeshCommon
 from femtest.testmesh import TestMeshEleTetra10
 from femtest.testresult import TestResult
 from femtest.testccxtools import TestCcxTools
-#from femtest.testsolverframework import TestSolverFrameWork
+from femtest.testsolverframework import TestSolverFrameWork
 
 # dummy usage to get flake8 and lgtm quiet
 False if TestFemCommon.__name__ else True
@@ -47,7 +47,7 @@ False if TestMeshEleTetra10.__name__ else True
 False if TestMeshEleTetra10.__name__ else True
 False if TestResult.__name__ else True
 False if TestCcxTools.__name__ else True
-#False if TestSolverFrameWork.__name__ else True
+False if TestSolverFrameWork.__name__ else True
 
 
 # For more information on how to run a specific test class or a test method see

src/Mod/Fem/femmesh/gmshtools.py

@@ -604,8 +604,12 @@ class GmshTools():
                 if ele_nr:
                     ele_nr = ele_nr.rstrip(", ")
                     # print(ele_nr)
+                    curly_br_s = "{"
+                    curly_br_e = "}"
+                    # explicit use double quotes in geo file
                     geo.write(
-                        "Physical " + physical_type + "("" + group + "") = {" + ele_nr + "};\n"
+                        'Physical {}("{}") = {}{}{};\n'
+                        .format(physical_type, group, curly_br_s, ele_nr, curly_br_e)
                     )
             geo.write("\n")
         geo.write("// Characteristic Length\n")