Test conda install in CI

.github/workflows/ci.yaml

@@ -29,19 +29,33 @@ jobs:
         env:
           CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
           files: ./coverage.xml
-  
-  build_conda_package:
+
+  test_conda_package_install:
 
     runs-on: ubuntu-latest
 
+    # This is required to activate conda environment in GitHub Actions:
+    # See https://stackoverflow.com/questions/72703363/how-to-activate-conda-environment-in-github-actions
+    defaults:
+      run:
+        shell: bash -l {0}
+
     steps:
       - uses: actions/checkout@v3
         with:
+          # Fetch all history for all tags and branches (tag information is
+          # required when building the conda package)
           fetch-depth: 0
       - uses: conda-incubator/setup-miniconda@v2
         with:
           python-version: '3.9'
-      - name: Test conda build
+      - name: Build and install conda package
         run: |
           conda install conda-build
-          conda build -c conda-forge -c accessnri -c coecms .
+          conda build -c conda-forge -c accessnri -c coecms .
+          conda install --no-channel-priority -c $CONDA_PREFIX/conda-bld -c conda-forge -c accessnri -c coecms benchcab
+          conda uninstall conda-build
+      - name: Pytest
+        run: |
+          conda install pytest-cov
+          pytest