add test for Makefile #17

	name: coverage

	on:
	push:
	branches: [ main ]
	pull_request:
	branches: [ main ]

	jobs:
	test:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4

	- name: Set up Go
	uses: actions/setup-go@v5
	with:
	go-version: '1.22'

	- name: Install goveralls
	run: go install github.com/mattn/goveralls@latest

	- name: Run tests
	run: go test -v -coverprofile=coverage.out $(go list ./... \| grep -v /example)

	- name: Send coverage
	env:
	COVERALLS_TOKEN: ${{ secrets.COVERALLS_REPO_TOKEN }}
	run: goveralls -coverprofile=coverage.out -service=github

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