Test against latest published versions of all dependencies

These tests are optional and are allowed to fail. They act as indicators
of future issues.

Author: mx-moth

.github/actions/environment/action.yaml

@@ -8,6 +8,11 @@ inputs:
     description: Name of the emsarray Python package artifact
     required: false
     default: "Python package"
+  install-latest:
+    description: Install latest dependency versions instead of locked versions
+    required: false
+    # All inputs are forced to strings
+    default: 'false'
 
 runs:
   using: composite
@@ -21,7 +26,6 @@ runs:
           continuous-integration/requirements.txt
           continuous-integration/environment.yaml
           setup.cfg
-        python-version: ${{ inputs.python-version }}
 
     - name: Fetch built emsarray package
       uses: actions/download-artifact@v3
@@ -30,7 +34,7 @@ runs:
         path: "dist/"
 
     - name: Cache conda packages
-      uses: actions/cache@v2
+      uses: actions/cache@v3
       with:
         path: ~/conda_pkgs_dir
         key:
@@ -48,10 +52,18 @@ runs:
       run: |
         conda install -c conda-forge wheel
 
-
-    - name: Install Python packages
+    - name: Install locked Python packages
+      if: ${{ inputs.install-latest == 'false' }}
       shell: bash -l {0}
       run: |
         pip install \
           -r continuous-integration/requirements.txt \
           dist/emsarray-*.whl
+
+    - name: Install latest Python packages
+      if: ${{ inputs.install-latest != 'false'}}
+      shell: bash -l {0}
+      run: |
+        wheels=( dist/emsarray-*.whl )
+        echo "${wheels[@]}"
+        pip install "${wheels[0]}[testing]"

.github/workflows/ci.yaml

@@ -31,21 +31,29 @@ jobs:
         run: unzip -l dist/*.whl | grep -q py.typed
 
   test:
+    name: python ${{ matrix.python-version }}, ${{ matrix.experimental && 'latest' || 'pinned' }} dependencies
     runs-on: ubuntu-latest
     timeout-minutes: 10
     needs: ["build"]
 
+    # Allow failures for the latest versions
+    continue-on-error: ${{ matrix.experimental }}
     strategy:
       fail-fast: false
       matrix:
         python-version: ["3.9", "3.10", "3.11"]
+        experimental: [false]
+        include:
+          - python-version: "3.11"
+            experimental: true
 
     steps:
       - uses: actions/checkout@v3
       - uses: ./.github/actions/environment
         with:
           python-version: ${{ matrix.python-version }}
           package-artifact-name: ${{ needs.build.outputs.artifact-name }}
+          install-latest: ${{ matrix.experimental }}
 
       - name: Run tests
         shell: bash -l {0}

tox.ini

@@ -1,7 +1,10 @@
 [tox]
 isolated_build = true
+package = wheel
+wheel_build_env = .pkg
 envlist =
-	py{39,310,311}-pytest
+	py{39,310,311}-pytest-locked
+	py311-pytest-latest
 	lint,docs
 skip_missing_interpreters = true
 requires =
@@ -25,7 +28,11 @@ conda_deps =
 # Install the python dependencies through pip
 deps = -rcontinuous-integration/requirements.txt
 
-[testenv:py{39,310,311}-pytest]
+[testenv:py{39,310,311}-pytest-{locked,latest}]
+deps =
+	locked: -rcontinuous-integration/requirements.txt
+extras =
+	latest: testing
 commands =
 	pytest \
 		--junitxml=junit-{envname}.xml \