Add scheduled workflow to run tests with unpinned dependencies (#1310)

* Add scheduled workflow to run tests with unpinned dependencies

* Use macos-latest in favour of specific version

* Skip slow tests in unpinned tests workflow

* Remove unnecessary pip caching

Dependencies installed via tox with caching set up already
for this

* Update crontab schedule to once per month

* Relax version requirement specifier on pandas

.github/workflows/tests-unpinned.yml

@@ -0,0 +1,32 @@
+name: Tests with unpinned dependencies
+
+on:
+  schedule:
+    - cron: 0 0 15 * *
+
+jobs:
+  test:
+    name: Run tests
+    strategy:
+      matrix:
+        os: [ubuntu-latest, macos-latest, windows-latest]
+        python-version: [3.x]
+      fail-fast: false
+    runs-on: ${{ matrix.os }}
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          lfs: true
+      - name: Cache tox
+        uses: actions/cache@v4
+        with:
+          path: .tox
+          key: tox-${{hashFiles('pyproject.toml') }}
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: Install tox
+        run: python -m pip install tox
+      - name: Run tests
+        run: tox -v -e py3-latest -- pytest -n auto -vv tests --skip-slow

pyproject.toml

@@ -24,7 +24,7 @@ dependencies = [
     "pyshp",
     "squarify",
     "numpy",
-    "pandas~=2.0.0",
+    "pandas~=2.0",
     "scipy",
      # Avoid https://foss.heptapod.net/openpyxl/openpyxl/-/issues/1963
     "openpyxl==3.1.0",

tox.ini

@@ -41,6 +41,13 @@ deps =
     pytest
     pytest-cov
 
+[testenv:py3-latest]
+deps =
+    pytest
+    pytest-xdist
+commands =
+    {posargs:pytest -n auto -vv tests}
+
 [testenv:spell]
 setenv =
     SPELLCHECK=1