add a simple smoketest for cvxpy integration

.github/workflows/pr.yaml

@@ -189,7 +189,7 @@ jobs:
       package-name: cuopt
       package-type: python
   wheel-tests-cuopt:
-    needs: [wheel-build-cuopt, wheel-build-cuopt-mps-parser, changed-files]
+    needs: [wheel-build-cuopt, wheel-build-cuopt-mps-parser, wheel-build-cuopt-sh-client, changed-files]
     secrets: inherit
     uses: rapidsai/shared-workflows/.github/workflows/wheels-test.yaml@branch-25.08
     #if: fromJSON(needs.changed-files.outputs.changed_file_groups).test_python_cuopt

ci/test_wheel_cuopt.sh

@@ -17,19 +17,33 @@
 
 set -euo pipefail
 
+# sets up a constraints file for 'pip' and puts its location in an exported variable PIP_EXPORT,
+# so those constraints will affect all future 'pip install' calls
 source rapids-init-pip
 
 # Download the packages built in the previous step
 RAPIDS_PY_CUDA_SUFFIX="$(rapids-wheel-ctk-name-gen "${RAPIDS_CUDA_VERSION}")"
 CUOPT_MPS_PARSER_WHEELHOUSE=$(RAPIDS_PY_WHEEL_NAME="cuopt_mps_parser" rapids-download-wheels-from-github python)
+CUOPT_SH_CLIENT_WHEELHOUSE=$(RAPIDS_PY_WHEEL_NAME="cuopt_sh_client" rapids-download-wheels-from-github python)
 CUOPT_WHEELHOUSE=$(RAPIDS_PY_WHEEL_NAME="cuopt_${RAPIDS_PY_CUDA_SUFFIX}" rapids-download-wheels-from-github python)
 LIBCUOPT_WHEELHOUSE=$(RAPIDS_PY_WHEEL_NAME="libcuopt_${RAPIDS_PY_CUDA_SUFFIX}" rapids-download-wheels-from-github cpp)
 
+# update pip constraints.txt to ensure all future 'pip install' (including those in ci/thirdparty-testing)
+# use these wheels for cuopt packages
+cat > "${PIP_CONSTRAINT}" <<EOF
+cuopt-${RAPIDS_PY_CUDA_SUFFIX} @ file://$(echo ${CUOPT_WHEELHOUSE}/cuopt_${RAPIDS_PY_CUDA_SUFFIX}-*.whl)
+cuopt-mps-parser @ file://$(echo ${CUOPT_MPS_PARSER_WHEELHOUSE}/cuopt_mps_parser-*.whl)
+cuopt-sh-client @ file://$(echo ${CUOPT_SH_CLIENT_WHEELHOUSE}/cuopt_sh_client-*.whl)
+libcuopt-${RAPIDS_PY_CUDA_SUFFIX} @ file://$(echo ${LIBCUOPT_WHEELHOUSE}/libcuopt_${RAPIDS_PY_CUDA_SUFFIX}-*.whl)
+EOF
+
 # echo to expand wildcard before adding `[extra]` requires for pip
 rapids-pip-retry install \
     --extra-index-url=https://pypi.nvidia.com \
+    --constraint "${PIP_CONSTRAINT}" \
     "${CUOPT_MPS_PARSER_WHEELHOUSE}"/cuopt_mps_parser*.whl \
     "$(echo "${CUOPT_WHEELHOUSE}"/cuopt*.whl)[test]" \
+    "${CUOPT_SH_CLIENT_WHEELHOUSE}"/cuopt_sh_client*.whl \
     "${LIBCUOPT_WHEELHOUSE}"/libcuopt*.whl
 
 python -c "import cuopt"
@@ -59,3 +73,5 @@ timeout 10m bash ./python/libcuopt/libcuopt/tests/test_cli.sh
 # Run Python tests
 RAPIDS_DATASET_ROOT_DIR=./datasets timeout 30m python -m pytest --verbose --capture=no ./python/cuopt/cuopt/tests/
 
+# run cvxpy integration tests
+./ci/thirdparty-testing/run_cvxpy_tests.sh

ci/thirdparty-testing/run_cvxpy_tests.sh

@@ -0,0 +1,44 @@
+#!/bin/bash
+# SPDX-FileCopyrightText: Copyright (c) 2025 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
+# SPDX-License-Identifier: Apache-2.0
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+set -e -u -o pipefail
+
+echo "building 'cvxpy' from source"
+git clone https://github.com/cvxpy/cvxpy.git
+pushd ./cvxpy || exit 1
+pip wheel \
+    -w dist \
+    .
+
+# NOTE: installing cvxpy[CUOPT] alongside CI artifacts is helpful to catch dependency conflicts
+echo "installing 'cvxpy' with cuopt"
+python -m pip install \
+    --constraint "${PIP_CONSTRAINT}" \
+    --extra-index-url=https://pypi.nvidia.com \
+    --extra-index-url=https://pypi.anaconda.org/rapidsai-wheels-nightly/simple \
+    'pytest-error-for-skips>=2.0.2' \
+    "$(echo ./dist/cvxpy*.whl)[CUOPT,testing]"
+
+# ensure that environment is still consistent (i.e. cvxpy requirements do not conflict with cuopt's)
+pip check
+
+echo "running 'cvxpy' tests"
+timeout 3m python -m pytest \
+    --verbose \
+    --capture=no \
+    --error-for-skips \
+    -k "TestCUOPT" \
+    ./cvxpy/tests/test_conic_solvers.py