Split out dask/dask tests in CI

.github/workflows/dask_test.yaml

@@ -0,0 +1,57 @@
+name: Tests / dask/dask
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+  workflow_dispatch:
+
+# When this workflow is queued, automatically cancel any previous running
+# or pending jobs from the same branch
+concurrency:
+  group: dask_test-${{ github.ref }}
+  cancel-in-progress: true
+
+# Required shell entrypoint to have properly activated conda environments
+defaults:
+  run:
+    shell: bash -l {0}
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version: ["3.9", "3.12"]
+        environment-file: [ci/environment.yml]
+
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0  # Needed by codecov.io
+
+      - name: Get current date
+        id: date
+        run: echo "date=$(date +%Y-%m-%d)" >> "${GITHUB_OUTPUT}"
+
+      - name: Install Environment
+        uses: mamba-org/setup-micromamba@v1
+        with:
+          environment-file: ${{ matrix.environment-file }}
+          create-args: python=${{ matrix.python-version }}
+          # Wipe cache every 24 hours or whenever environment.yml changes. This means it
+          # may take up to a day before changes to unpinned packages are picked up.
+          # To force a cache refresh, change the hardcoded numerical suffix below.
+          cache-environment-key: environment-${{ steps.date.outputs.date }}-0
+
+      - name: Install dask-expr
+        run: python -m pip install -e . --no-deps
+
+      - name: Print dask versions
+        # Output of `micromamba list` is buggy for pip-installed packages
+        run: pip list | grep -E 'dask|distributed'
+
+      - name: Run Dask DataFrame tests
+        run: python -c "import dask.dataframe as dd; dd.test_dataframe()"

.github/workflows/pre-commit.yml

@@ -11,8 +11,8 @@ jobs:
     name: pre-commit hooks
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3.5.2
-      - uses: actions/setup-python@v4
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
         with:
           python-version: '3.9'
       - uses: pre-commit/action@v3.0.0

.github/workflows/test.yaml

@@ -10,7 +10,7 @@ on:
 # When this workflow is queued, automatically cancel any previous running
 # or pending jobs from the same branch
 concurrency:
-  group: ${{ github.ref }}
+  group: test-${{ github.ref }}
   cancel-in-progress: true
 
 # Required shell entrypoint to have properly activated conda environments
@@ -28,7 +28,7 @@ jobs:
         environment-file: [ci/environment.yml]
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0  # Needed by codecov.io
 
@@ -56,8 +56,5 @@ jobs:
       - name: Run tests
         run: py.test -n auto --verbose --cov=dask_expr --cov-report=xml
 
-      - name: Run Dask DataFrame tests
-        run: python -c "import dask.dataframe as dd; dd.test_dataframe()"
-
       - name: Coverage
         uses: codecov/codecov-action@v3