Try testtools again with toolchains

.gitlab-ci.yml

@@ -10,7 +10,7 @@ stages:
 .general_definitions: &general_definitions
   before_script:
     # Set cmake flags
-    - echo 'CMAKE_FLAGS+=" -DCMAKE_GENERATOR="Ninja" -DDUNE_PYTHON_VIRTUALENV_SETUP=1 -DDUNE_PYTHON_VIRTUALENV_PATH=/duneci/modules/dune-python-venv"' >> /duneci/cmake-flags/dune_copasi.opts
+    - echo 'CMAKE_FLAGS+=" -DCMAKE_GENERATOR="Ninja" -DDUNE_PYTHON_VIRTUALENV_SETUP=1 -DDUNE_PYTHON_VIRTUALENV_PATH=$CI_BUILDS_DIR/build/dune-python-venv"' >> /duneci/cmake-flags/dune_copasi.opts
     # create source directory if donesn't exist
     - mkdir -p source
     # clear dune-copasi folder if existing
@@ -72,11 +72,11 @@ stages:
     - git clone https://gitlab.dune-project.org/core/dune-localfunctions
     - git clone -b support/dune-copasi https://gitlab.dune-project.org/santiago.ospina/dune-typetree
     - git clone https://gitlab.dune-project.org/staging/dune-functions
-    # - git clone -b feature/allow-multidomain-vtk-compare-to-have-same-thresholds https://gitlab.dune-project.org/quality/dune-testtools
+    - git clone -b feature/allow-multidomain-vtk-compare-to-have-same-thresholds https://gitlab.dune-project.org/quality/dune-testtools
     - git clone -b support/dune-copasi https://gitlab.dune-project.org/santiago.ospina/dune-pdelab
     - git clone -b support/dune-copasi https://gitlab.dune-project.org/santiago.ospina/dune-multidomaingrid
     # make required dune modules
-    # - dune_all dune-testtools
+    - dune_all dune-testtools
     - dune_all dune-logging
     - dune_all dune-pdelab
     - dune_all dune-multidomaingrid