Run minimal tests on GitHub Actions

Author: bouweandela

.github/workflows/test.yml

@@ -10,6 +10,7 @@ on:
     branches:
       - main
       - update-pixi
+      - add-minimal-installation
   schedule:
     - cron: "0 0 * * *"
 
@@ -32,13 +33,14 @@ jobs:
           - test-py312
           - test-py313
           - test-py314
+          - esmvaltool-minimal-dev
     name: ${{ matrix.os }} ${{ matrix.environment }}
     steps:
       - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
         with:
           fetch-depth: 0
           persist-credentials: false
-      - uses: prefix-dev/setup-pixi@5185adfbffb4bd703da3010310260805d89ebb11  # v0.9.6
+      - uses: prefix-dev/setup-pixi@5185adfbffb4bd703da3010310260805d89ebb11 # v0.9.6
         with:
           frozen: true
           environments: ${{ matrix.environment }}
@@ -47,7 +49,15 @@ jobs:
       - name: Check code quality
         run: pre-commit run -a
       - name: Run tests
-        run: pytest -n 2 -m "not installation"
+        if: matrix.environment != 'esmvaltool-minimal-dev'
+        run: pytest -n 2
+      - name: Run tests
+        if: matrix.environment == 'esmvaltool-minimal-dev'
+        run: >-
+          pytest
+          -n 2
+          --ignore=tests/sample_data/
+          --ignore=tests/unit/cmorizers/test_cmorization_interface.py
       - name: Upload artifacts
         if: ${{ always() }} # upload artifacts even if fail
         uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1

pyproject.toml

@@ -132,7 +132,6 @@ env = { MPLBACKEND = "Agg" }
 log_level = "WARNING"
 minversion = "6"
 markers = [
-    "installation: Test requires installation of dependencies",
     "diagnostic_image_output: test produces images that will be compared with imagehash",
 ]
 testpaths = ["tests"]

tests/integration/test_diagnostic_run.py

@@ -71,7 +71,6 @@ def check(result_file):
 ]
 
 
-@pytest.mark.installation
 @pytest.mark.parametrize("script_file", SCRIPTS)
 def test_diagnostic_run(tmp_path, script_file):
     local_script_file = Path(__file__).parent / script_file