[Enhancement] Support multiple expected outputs in the test program #49

	name: Test for C++ implementations
	on:
	pull_request:
	branches: [main]

	jobs:
	prepare:
	name: Prepare test
	runs-on: self-hosted
	defaults:
	run:
	working-directory: ./test
	steps:
	- uses: actions/checkout@v4
	with:
	submodules: true
	- name: Build test maker
	run: gcc -o test_maker test_maker.c

	test-hd:
	name: Run heading test
	runs-on: self-hosted
	needs: prepare
	defaults:
	run:
	working-directory: ./test
	steps:
	- name: Build object program
	run: make all
	working-directory: ./hd/cpp
	- name: Build host program
	run: ./test_maker .test/hd.test
	- name: Run test
	run: ./test ../hd/cpp/hd
	timeout-minutes: 5

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