hmon: add C++ HMON unit tests #474

	# *******************************************************************************
	# Copyright (c) 2026 Contributors to the Eclipse Foundation
	#
	# See the NOTICE file(s) distributed with this work for additional
	# information regarding copyright ownership.
	#
	# This program and the accompanying materials are made available under the
	# terms of the Apache License Version 2.0 which is available at
	# https://www.apache.org/licenses/LICENSE-2.0
	#
	# SPDX-License-Identifier: Apache-2.0
	# *******************************************************************************
	name: Bazel Build

	on:
	pull_request:
	types: [opened, reopened, synchronize]
	merge_group:
	types: [checks_requested]
	push:
	branches:
	- main
	jobs:
	build:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	config: [x86_64-linux, arm64-linux]
	steps:
	- name: Checkout code
	uses: actions/checkout@v4.2.2

	- name: Setup Bazel
	uses: bazel-contrib/setup-bazel@0.18.0
	with:
	bazelisk-cache: true
	disk-cache: ${{ github.workflow }}-${{ matrix.config }}
	repository-cache: true
	cache-save: ${{ github.event_name == 'push' }}

	- name: Bazel info (discover paths)
	id: bazel-info
	run: \|
	echo "BAZEL_OUTPUT_BASE=$(bazel info output_base)" >> $GITHUB_ENV
	echo "BAZEL_USER_ROOT=$(bazel info output_user_root)" >> $GITHUB_ENV
	echo "BAZEL_REPO_CACHE=$(bazel info repository_cache)" >> $GITHUB_ENV
	bazel info

	- name: Build with Bazel
	run: \|
	bazel build --lockfile_mode=error --config ${{ matrix.config }} //src/... //examples/...

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