use a matrix to test on multiple elixir/erlang versions #13

	name: CI

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

	jobs:
	compile:
	name: Compile
	runs-on: ubuntu-latest
	strategy:
	matrix:
	include:
	- elixir: "1.16.x"
	otp: "26.x"
	- elixir: 1.15.x
	otp: "25.x"

	steps:
	- name: Checkout
	uses: actions/checkout@v4
	- name: Set up Elixir
	uses: erlef/setup-beam@v1
	with:
	elixir-version: ${{ matrix.elixir }}
	otp-version: ${{ matrix.otp }}
	- name: Install dependencies
	run: mix deps.get
	- name: Compile dependencies
	run: mix deps.compile
	- name: Compile
	run: mix compile --warnings-as-errors

	test:
	name: Test
	runs-on: ubuntu-latest
	strategy:
	matrix:
	include:
	- elixir: "1.16.x"
	otp: "26.x"
	- elixir: 1.15.x
	otp: "25.x"

	steps:
	- name: Checkout
	uses: actions/checkout@v4
	- name: Set up Elixir
	uses: erlef/setup-beam@v1
	with:
	elixir-version: ${{ matrix.elixir }}
	otp-version: ${{ matrix.otp }}
	- name: Install dependencies
	run: mix deps.get
	- name: Compile dependencies
	run: mix deps.compile
	- name: Run tests
	run: mix test

	check-formatted:
	name: Check Formatted
	runs-on: ubuntu-latest
	strategy:
	matrix:
	include:
	- elixir: "1.16.x"
	otp: "26.x"

	steps:
	- name: Checkout
	uses: actions/checkout@v4
	- name: Set up Elixir
	uses: erlef/setup-beam@v1
	with:
	elixir-version: ${{ matrix.elixir }}
	otp-version: ${{ matrix.otp }}
	- name: Install dependencies
	run: mix deps.get
	- name: Compile dependencies
	run: mix deps.compile
	- name: Check formatted
	run: mix format --check-formatted

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