 <OpenGeoSysProjectDiff base_file="uniaxial_isothermal_drainage_imbibition_extended_mfront_model.prj">

   <replace sel=".//time_loop/processes/process/time_stepping/timesteps/pair/delta_t/text()">0.3</replace>

   <replace sel=".//time_loop/output/prefix/text()">uniaxial_isothermal_drainage_imbibition_basic_mfront_model</replace>

   <remove sel=".//processes/process/constitutive_relation" />

   <add sel=".//processes/process">

     <constitutive_relation>

       <type>MFront</type>

       <behaviour>StandardElasticityBrick</behaviour>

       <material_properties>

         <material_property name="YoungModulus" parameter="E" />

         <material_property name="PoissonRatio" parameter="nu" />

       </material_properties>

     </constitutive_relation>

   </add>

   <replace sel=".//processes/process/subtype/text()">Stress_StrainTemperature</replace>

   <remove sel=".//time_loop/output/variables/variable[text()="sigma_total"]" />

   <add sel=".//time_loop/output/variables">

     <variable>sigma</variable>

   </add>

   <remove sel=".//processes/process/secondary_variables/secondary_variable[@internal_name="sigma_total"]" />

   <add sel=".//processes/process/secondary_variables">

     <secondary_variable internal_name="sigma" output_name="sigma" />

   </add>

   <add sel="./">

     <test_definition>

       <vtkdiff>

         <regex>uniaxial_isothermal_drainage_imbibition_basic_mfront_model_ts_.*.vtu</regex>

         <field>displacement</field>

         <absolute_tolerance>1e-15</absolute_tolerance>

         <relative_tolerance>0</relative_tolerance>

       </vtkdiff>

       <vtkdiff>

         <regex>uniaxial_isothermal_drainage_imbibition_basic_mfront_model_ts_.*.vtu</regex>

         <field>epsilon</field>

         <absolute_tolerance>1e-15</absolute_tolerance>

         <relative_tolerance>0</relative_tolerance>

       </vtkdiff>

       <vtkdiff>

         <regex>uniaxial_isothermal_drainage_imbibition_basic_mfront_model_ts_.*.vtu</regex>

         <field>pressure_interpolated</field>

         <absolute_tolerance>5e-8</absolute_tolerance>

         <relative_tolerance>0</relative_tolerance>

       </vtkdiff>

       <vtkdiff>

         <regex>uniaxial_isothermal_drainage_imbibition_basic_mfront_model_ts_.*.vtu</regex>

         <field>temperature_interpolated</field>

         <absolute_tolerance>1e-15</absolute_tolerance>

         <relative_tolerance>0</relative_tolerance>

       </vtkdiff>

       <vtkdiff>

         <regex>uniaxial_isothermal_drainage_imbibition_basic_mfront_model_ts_.*.vtu</regex>

         <field>sigma</field>

         <absolute_tolerance>4e-7</absolute_tolerance>

         <relative_tolerance>0</relative_tolerance>

       </vtkdiff>

       <vtkdiff>

         <regex>uniaxial_isothermal_drainage_imbibition_basic_mfront_model_ts_.*.vtu</regex>

         <field>saturation_avg</field>

         <absolute_tolerance>1e-15</absolute_tolerance>

         <relative_tolerance>0</relative_tolerance>

       </vtkdiff>

     </test_definition>

   </add>

 </OpenGeoSysProjectDiff>