tests: Improve test coverage

.github/workflows/lint.yml

@@ -26,14 +26,14 @@ jobs:
       - name: Checkout code
         uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
 
-      - name: Setup Python
-        uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1 # v6.3.0
+      - name: Set up pixi
+        uses: prefix-dev/setup-pixi@5185adfbffb4bd703da3010310260805d89ebb11 # v0.9.6
         with:
-          python-version: "3.12"
-          cache: pip
-
-      - name: Install dependencies
-        run: python -m pip install --upgrade pip pre-commit
+          environments: lint
+          # Install strictly from the committed pixi.lock so CI runs against the
+          # locked dependencies. The lock file is refreshed by the weekly
+          # update_pixi_lock_files workflow.
+          frozen: true
 
       - name: Lint
-        run: pre-commit run --all-files
+        run: pixi run -e lint lint

codecov.yml

@@ -1,9 +1,11 @@
 # similar to scikit-learn/skrub .codecov.yml
 comment: false
 
-coverage:
-  wait_for_ci: true
+codecov:
+  notify:
+    wait_for_ci: true
 
+coverage:
   status:
     project:
       default:

pyproject.toml

@@ -78,6 +78,12 @@ skore-cli = { path = ".", editable = true }
 [tool.pixi.feature.test.tasks]
 tests = "pytest tests --cov=skore_cli --cov-report=xml"
 
+[tool.pixi.feature.lint.dependencies]
+pre-commit = "*"
+
+[tool.pixi.feature.lint.tasks]
+lint = "pre-commit run --all-files"
+
 [tool.pixi.feature.py311.dependencies]
 python = "3.11.*"
 
@@ -95,6 +101,7 @@ test-py311 = ["test", "py311"]
 test-py312 = ["test", "py312"]
 test-py313 = ["test", "py313"]
 test-py314 = ["test", "py314"]
+lint = ["lint"]
 
 [tool.pytest.ini_options]
 addopts = [