fix bug for linux and mac

Author: oliverchampion

.github/workflows/unit_test.yml

@@ -32,13 +32,23 @@ jobs:
           pip install -r requirements.txt
       - name: Check out repository
         uses: actions/checkout@v4
+      - name: Set environment variables for MATLAB Engine
+        run: |
+          if [[ "${{ runner.os }}" == "macOS" ]]; then
+            echo "DYLD_LIBRARY_PATH=/Applications/MATLAB_R2025a.app/bin/maci64:$DYLD_LIBRARY_PATH" >> $GITHUB_ENV
+          elif [[ "${{ runner.os }}" == "Linux" ]]; then
+            echo "LD_LIBRARY_PATH=/usr/local/MATLAB/R2025a/bin/glnxa64:$LD_LIBRARY_PATH" >> $GITHUB_ENV
+          elif [[ "${{ runner.os }}" == "Windows" ]]; then
+            echo "C:\Program Files\MATLAB\R2025a\bin\win64" >> $GITHUB_PATH
+          fi
       - name: Set up MATLAB
         uses: matlab-actions/setup-matlab@v2
         with:
           release: R2025a 
       - name: Install MATLAB Engine for Python
         run: |
           python -m pip install matlabengine==25.1.2
+
       - name: Test with pytest
         run: |
           pip install pytest pytest-cov

tests/IVIMmodels/unit_tests/test_ivim_fit.py

@@ -108,11 +108,15 @@ def algorithms():
         algorithm_information = json.load(f)
     algorithms = algorithm_information["algorithms"]
     for algorithm in algorithms:
-        yield algorithm
-
-@pytest.mark.parametrize("algorithm", algorithms())
-def test_default_bounds_and_initial_guesses(algorithm):
-    fit = OsipiBase(algorithm=algorithm)
+        algorithm_dict = algorithm_information.get(algorithm, {})
+        args={}
+        if algorithm_dict.get("requieres_matlab", {}) == True:
+            args['eng'] = eng
+        yield algorithm, args
+
+@pytest.mark.parametrize("algorithm, args", algorithms())
+def test_default_bounds_and_initial_guesses(algorithm, args):
+    fit = OsipiBase(algorithm=algorithm,**args)
     #assert fit.bounds is not None, f"For {algorithm}, there is no default fit boundary"
     #assert fit.initial_guess is not None, f"For {algorithm}, there is no default fit initial guess"
     if fit.use_bounds:
@@ -154,6 +158,8 @@ def bound_input():
                 "strict": algorithm_dict.get("xfail_names", {}).get(name, True)}
             kwargs = algorithm_dict.get("options", {})
             tolerances = algorithm_dict.get("tolerances", {})
+            if algorithm_dict.get("requieres_matlab", {}) == True:
+                kwargs={**kwargs,'eng': eng}
             yield name, bvals, data, algorithm, xfail, kwargs, tolerances