try to also build cuda.bindings Cython tests at the build stage

Author: leofang

.github/workflows/build-wheel.yml

@@ -76,11 +76,15 @@ jobs:
           echo "CUDA_CORE_ARTIFACT_BASENAME=${CUDA_CORE_ARTIFACT_BASENAME}" >> $GITHUB_ENV
           echo "CUDA_CORE_ARTIFACT_NAME=${CUDA_CORE_ARTIFACT_BASENAME}-${{ github.sha }}" >> $GITHUB_ENV
           echo "CUDA_CORE_ARTIFACTS_DIR=$(realpath "$REPO_DIR/cuda_core/dist")" >> $GITHUB_ENV
+          echo "CUDA_CORE_CYTHON_TESTS_DIR=$(realpath "$REPO_DIR/cuda_core/tests/cython")" >> $GITHUB_ENV
           CUDA_BINDINGS_ARTIFACT_BASENAME="cuda-bindings-python${PYTHON_VERSION_FORMATTED}-cuda${{ inputs.cuda-version }}-${{ inputs.host-platform }}"
           echo "CUDA_BINDINGS_ARTIFACT_BASENAME=${CUDA_BINDINGS_ARTIFACT_BASENAME}" >> $GITHUB_ENV
           echo "CUDA_BINDINGS_ARTIFACT_NAME=${CUDA_BINDINGS_ARTIFACT_BASENAME}-${{ github.sha }}" >> $GITHUB_ENV
           echo "CUDA_BINDINGS_ARTIFACTS_DIR=$(realpath "$REPO_DIR/cuda_bindings/dist")" >> $GITHUB_ENV
+          echo "CUDA_BINDINGS_CYTHON_TESTS_DIR=$(realpath "$REPO_DIR/cuda_bindings/tests/cython")" >> $GITHUB_ENV
           echo "CIBW_BUILD=${CIBW_BUILD}" >> $GITHUB_ENV
+
+          echo "PY_EXT_SUFFIX=$(python -c \"import sysconfig; print(sysconfig.get_config_var('EXT_SUFFIX'))\")" >> $GITHUB_ENV
 
       - name: Dump environment
         run: |
@@ -165,6 +169,19 @@ jobs:
           path: ${{ env.CUDA_BINDINGS_ARTIFACTS_DIR }}/*.whl
           if-no-files-found: error
 
+      - name: Build cuda.bindings Cython tests
+        run: |
+          pip install ${{ env.CUDA_BINDINGS_ARTIFACTS_DIR }}/*.whl
+          mkdir -p ${{ env.CUDA_BINDINGS_CYTHON_TESTS_DIR }}
+          bash tests/cython/build_tests.sh
+
+      - name: Upload cuda.bindings Cython tests
+        uses: actions/upload-artifact@v4
+        with:
+          name: ${{ env.CUDA_BINDINGS_ARTIFACT_NAME }}-tests
+          path: ${{ env.CUDA_BINDINGS_CYTHON_TESTS_DIR }}/test_*.${{ env.PY_EXT_SUFFIX }}
+          if-no-files-found: error
+
       # We only need/want a single pure python wheel, pick linux-64 index 0.
       - name: Build and check cuda-python wheel
         if: ${{ strategy.job-index == 0 && inputs.host-platform == 'linux-64' }}