re-enabled simpler testpypi

Signed-off-by: Nick Papior <[email protected]>

.github/workflows/wheels.yaml

@@ -146,7 +146,83 @@ jobs:
           path: dist/*.tar.gz
           if-no-files-found: error
 
+  # Upload to testpypi
+  upload_testpypi:
+    needs: [sdist, wheels]
+    if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags')
+    name: Publish package to TestPyPI
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/download-artifact@v4
+        with:
+          pattern: cibw-*
+          path: dist
+          merge-multiple: True
+
+      - name: Print packages
+        run: ls dist
+
+      - uses: pypa/[email protected]
+        with:
+          user: __token__
+          password: ${{ secrets.TESTPYPI_TOKEN }}
+          repository-url: https://test.pypi.org/legacy/
+
+  # Check that the testpypi installation works
+  test_testpypi:
+    needs: [upload_testpypi]
+    name: Test installation from TestPyPi
+    runs-on: ${{ matrix.os }}
+
+    strategy:
+      # If one of the jobs fails, continue with the others.
+      fail-fast: false
+      matrix:
+        os: [ubuntu-20.04, ubuntu-latest, macos-13, macos-14]
+
+    steps:
+      - name: Python installation
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.9"
+
+      - name: Wait for testpypi to catch up
+        run: |
+          sleep 20
+          version=${GITHUB_REF#refs/*/v}
+          echo "SISL_VERSION=${version#refs/*/}" >> $GITHUB_ENV
+          ls -lh
+
+      - name: Install sisl + dependencies (oldest numpy, not ARM)
+        if: matrix.os != 'macos-14'
+        run: |
+          python -m pip install -v \
+            --progress-bar=off \
+            --index-url https://test.pypi.org/simple/ \
+            --extra-index-url https://pypi.org/simple/ \
+            "sisl[test,viz]==${{ env.SISL_VERSION }}" \
+            "numpy==1.21.*" "scipy==1.6.*" "xarray==0.21.*"
+
+      - name: Install sisl + dependencies (arm)
+        if: matrix.os == 'macos-14'
+        run: |
+          python -m pip install -v \
+            --progress-bar=off \
+            --index-url https://test.pypi.org/simple/ \
+            --extra-index-url https://pypi.org/simple/ \
+            "sisl[test,viz]==${{ env.SISL_VERSION }}"
+
+      - name: sisl debug info
+        run: |
+          python -c 'from sisl._debug_info import * ; print_debug_info()'
+
+      - name: Test the installation
+        run: |
+          sdata --help
+
+  # Upload to PyPI on every tag
   upload_pypi:
+    needs: [test_testpypi]
     name: Publish package to Pypi
     runs-on: ubuntu-latest
     if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags')