diff --git a/.github/workflows/ubuntu.yml b/.github/workflows/ubuntu.yml
index 2c73097adb..e363ee596f 100644
--- a/.github/workflows/ubuntu.yml
+++ b/.github/workflows/ubuntu.yml
@@ -150,14 +150,14 @@ jobs:
         run: |
           git submodule update --init --remote --recursive src/tests/resources/Antares_Simulator_Tests_NR
 
-      - name: Run named mps tests
-        if: ${{ env.RUN_SIMPLE_TESTS == 'true' && !cancelled() }}
-        uses: ./.github/workflows/run-tests
-        with:
-          simtest-tag: ${{ env.SIMTEST }}
-          batch-name: valid-named-mps
-          os: ${{ env.os }}
-          variant: "named-mps"
+      #- name: Run named mps tests
+      #  if: ${{ env.RUN_SIMPLE_TESTS == 'true' && !cancelled() }}
+      #  uses: ./.github/workflows/run-tests
+      #  with:
+      #    simtest-tag: ${{ env.SIMTEST }}
+      #    batch-name: valid-named-mps
+      #    os: ${{ env.os }}
+      #    variant: "named-mps"
 
       - name: Run unfeasibility-related tests
         if: ${{ env.RUN_SIMPLE_TESTS == 'true' && !cancelled() }}
@@ -240,13 +240,13 @@ jobs:
         with:
           feature: "features/short_tests.feature"
 
-      - name: Run mps tests
-        if: ${{ env.RUN_SIMPLE_TESTS == 'true' && !cancelled() }}
-        uses: ./.github/workflows/run-tests
-        with:
-          simtest-tag: ${{ env.SIMTEST }}
-          batch-name: valid-mps
-          os: ${{ env.os }}
+      #- name: Run mps tests
+      #  if: ${{ env.RUN_SIMPLE_TESTS == 'true' && !cancelled() }}
+      #  uses: ./.github/workflows/run-tests
+      #  with:
+      #    simtest-tag: ${{ env.SIMTEST }}
+      #    batch-name: valid-mps
+      #    os: ${{ env.os }}
 
       - name: Run tests for adequacy patch (CSR)
         if: ${{ env.RUN_SIMPLE_TESTS == 'true' && !cancelled() }}
@@ -257,7 +257,7 @@ jobs:
           os: ${{ env.os }}
 
       - name: Run parallel tests
-        if: ${{ env.RUN_EXTENDED_TESTS == 'true' && !cancelled() }}
+        if: ${{ env.RUN_SIMPLE_TESTS == 'true' && !cancelled() }}
         uses: ./.github/workflows/run-tests
         with:
           simtest-tag: ${{ env.SIMTEST }}
@@ -275,7 +275,7 @@ jobs:
           variant: "tsgenerator"
 
       - name: Run medium-tests
-        if: ${{ env.RUN_EXTENDED_TESTS == 'true' && !cancelled() }}
+        if: ${{ env.RUN_SIMPLE_TESTS == 'true' && !cancelled() }}
         uses: ./.github/workflows/run-tests
         with:
           simtest-tag: ${{ env.SIMTEST }}
diff --git a/.github/workflows/windows-vcpkg.yml b/.github/workflows/windows-vcpkg.yml
index 5fb4b19603..edd41d5f4f 100644
--- a/.github/workflows/windows-vcpkg.yml
+++ b/.github/workflows/windows-vcpkg.yml
@@ -152,14 +152,14 @@ jobs:
         run: |
           git submodule update --init --remote src/tests/resources/Antares_Simulator_Tests_NR
 
-      - name: Run named mps tests
-        if: ${{ env.RUN_SIMPLE_TESTS == 'true' && ! cancelled() }}
-        uses: ./.github/workflows/run-tests
-        with:
-          simtest-tag: ${{ env.SIMTEST }}
-          batch-name: valid-named-mps
-          os: ${{ env.os }}
-          variant: "named-mps"
+      #- name: Run named mps tests
+      #  if: ${{ env.RUN_SIMPLE_TESTS == 'true' && ! cancelled() }}
+      #  uses: ./.github/workflows/run-tests
+      #  with:
+      #    simtest-tag: ${{ env.SIMTEST }}
+      #    batch-name: valid-named-mps
+      #    os: ${{ env.os }}
+      #    variant: "named-mps"
 
       - name: Run unfeasibility-related tests
         if: ${{ env.RUN_SIMPLE_TESTS == 'true' && ! cancelled() }}
@@ -250,16 +250,16 @@ jobs:
         with:
           feature: "features/short_tests.feature"
 
-      - name: Run mps tests
-        if: ${{ env.RUN_SIMPLE_TESTS == 'true' && !cancelled() }}
-        uses: ./.github/workflows/run-tests
-        with:
-          simtest-tag: ${{ env.SIMTEST }}
-          batch-name: valid-mps
-          os: ${{ env.os }}
+      #- name: Run mps tests
+      #  if: ${{ env.RUN_SIMPLE_TESTS == 'true' && !cancelled() }}
+      #  uses: ./.github/workflows/run-tests
+      #  with:
+      #    simtest-tag: ${{ env.SIMTEST }}
+      #    batch-name: valid-mps
+      #    os: ${{ env.os }}
 
       - name: Run parallel tests
-        if: ${{ env.RUN_EXTENDED_TESTS == 'true' && !cancelled() }}
+        if: ${{ env.RUN_SIMPLE_TESTS == 'true' && !cancelled() }}
         uses: ./.github/workflows/run-tests
         with:
           simtest-tag: ${{ env.SIMTEST }}
@@ -277,7 +277,7 @@ jobs:
           variant: "tsgenerator"
 
       - name: Run medium-tests
-        if: ${{ env.RUN_EXTENDED_TESTS == 'true' && !cancelled() }}
+        if: ${{ env.RUN_SIMPLE_TESTS == 'true' && !cancelled() }}
         uses: ./.github/workflows/run-tests
         with:
           simtest-tag: ${{ env.SIMTEST }}
diff --git a/src/tests/CMakeLists.txt b/src/tests/CMakeLists.txt
index 2babe91fab..36f530ede4 100644
--- a/src/tests/CMakeLists.txt
+++ b/src/tests/CMakeLists.txt
@@ -49,13 +49,13 @@ if(Python3_Interpreter_FOUND)
       # TODO : add more study batches
       add_test(
         NAME unfeasible
-        COMMAND Python3::Interpreter -m pytest -m unfeasible --solver-path=$<TARGET_FILE:antares-solver>
+        COMMAND Python3::Interpreter -m pytest -m unfeasible --solver-path=$<TARGET_FILE:antares-solver> --use-ortools --ortools-solver sirius
         WORKING_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}/run-study-tests"
         )
 
       add_test(
         NAME json
-        COMMAND Python3::Interpreter -m pytest -m json --solver-path=$<TARGET_FILE:antares-solver>
+        COMMAND Python3::Interpreter -m pytest -m json --solver-path=$<TARGET_FILE:antares-solver> --use-ortools --ortools-solver sirius
         WORKING_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}/run-study-tests"
         )
 
@@ -73,7 +73,7 @@ if(Python3_Interpreter_FOUND)
 
       add_test(
         NAME parallel
-        COMMAND Python3::Interpreter -m pytest -m json --solver-path=$<TARGET_FILE:antares-solver> --force-parallel
+        COMMAND Python3::Interpreter -m pytest -m json --solver-path=$<TARGET_FILE:antares-solver> --force-parallel --use-ortools --ortools-solver sirius
         WORKING_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}/run-study-tests"
         )