Make CI testing more efficient

Author: bbc2

.github/workflows/test.yml

@@ -31,17 +31,31 @@ jobs:
     steps:
       - uses: actions/checkout@v6
 
-      - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v6
+      - name: Install the latest version of uv
+        uses: astral-sh/setup-uv@v7
         with:
-          python-version: ${{ matrix.python-version }}
-          allow-prereleases: true
-
-      - name: Upgrade pip
-        run: python -m pip install --upgrade pip
-
-      - name: Install dependencies
-        run: pip install tox tox-gh-actions
-
-      - name: Test with tox
-        run: tox
+          enable-cache: true
+          cache-dependency-glob: "pyproject.toml"
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Add .local/bin to Windows PATH
+        if: runner.os == 'Windows'
+        shell: bash
+        run: echo "$USERPROFILE/.local/bin" >> $GITHUB_PATH
+
+      - name: Install tox
+        run: uv tool install --python-preference only-managed --python 3.14 tox --with tox-uv --with tox-gh
+
+      - name: Install Python
+        if: matrix.python-version != '3.14'
+        run: uv python install --python-preference only-managed ${{ matrix.python-version }}
+
+      - name: Setup test suite
+        run: tox run -vv --notest --skip-missing-interpreters false
+        env:
+          TOX_GH_MAJOR_MINOR: ${{ matrix.python-version }}
+
+      - name: Run test suite
+        run: tox run --skip-pkg-install
+        env:
+          TOX_GH_MAJOR_MINOR: ${{ matrix.python-version }}

tox.ini

@@ -1,23 +1,25 @@
 [tox]
 envlist = lint,py{310,311,312,313,314,314t},pypy3,manifest,coverage-report
 
-[gh-actions]
+[gh]
 python =
-    3.10: py310
-    3.11: py311
-    3.12: py312
-    3.13: py313, lint, manifest
-    3.14: py314
-    3.14t: py314t
-    pypy-3.11: pypy3
+    3.10 = py310
+    3.11 = py311
+    3.12 = py312
+    3.13 = py313, lint, manifest
+    3.14 = py314
+    3.14t = py314t
+    pypy3.11 = pypy3
 
 [testenv]
 deps =
+    tox >= 4.31
+    tox-uv >= 1.28.1
     pytest
     pytest-cov
     sh >= 2.0.2, <3
     click
-    py{310,311,312,313,314,314t,pypy3}: ipython
+    py{310,311,312,313,314,314t},pypy3: ipython
 commands = pytest --cov --cov-report=term-missing {posargs}
 depends =
     py{310,311,312,313,314,314t},pypy3: coverage-clean