simplify, add more pythons, use faster umamba

Author: ocefpaf

.github/workflows/test.yaml

@@ -17,36 +17,32 @@ jobs:
       fail-fast: false
       matrix:
         os: ["macos-latest", "ubuntu-latest", "windows-latest"]
-        python-version: ["3.8", "3.9", "3.10"]
+        python-version: [ "3.8", "3.9", "3.10" ,"3.11", "3.12" ]
+    defaults:
+      run:
+        shell: bash -l {0}
+
     steps:
       - uses: actions/checkout@v4
-      - name: Cache conda
-        uses: actions/cache@v4
-        env:
-          # Increase this value to reset cache if ci/environment.yml has not changed
-          CACHE_NUMBER: 0
-        with:
-          path: ~/conda_pkgs_dir
-          key: ${{ runner.os }}-conda-${{ env.CACHE_NUMBER }}-${{ hashFiles('ci/environment-py${{ matrix.python-version }}.yml') }}
-      - uses: conda-incubator/setup-miniconda@v3
+
+      - name: Setup Micromamba ${{ matrix.python-version }}
+        uses: mamba-org/setup-micromamba@v1
         with:
-          # mamba-version: "*" # activate this to build with mamba.
-          python-version: ${{ matrix.python-version }}
-          miniforge-variant: Mambaforge
-          channels: conda-forge, defaults # These need to be specified to use mamba
-          channel-priority: true
-          environment-file: ci/environment-py${{ matrix.python-version }}.yml
+          environment-name: TEST
+          init-shell: bash
+          create-args: >-
+            python=${{ matrix.python-version }} pip
+            --file requirements.txt
+            --channel conda-forge
 
-          activate-environment: test_env_cmocean
-          use-only-tar-bz2: true # IMPORTANT: This needs to be set for caching to work properly!
       - name: Set up conda environment
-        shell: bash -l {0}
         run: |
           python -m pip install -e . --no-deps --force-reinstall
+
       - name: Run Tests
-        shell: bash -l {0}
         run: |
-          pytest --cov=./ --cov-report=xml
+          python -m pytest -rxs --cov=./ --cov-report=xml
+
       - name: Upload code coverage to Codecov
         uses: codecov/codecov-action@v4
         with: