Merge pull request #21 from tmtmtoo/io #46

	name: Test

	on: [push]

	jobs:
	test:
	strategy:
	matrix:
	os: [ubuntu-latest, macOS-latest, windows-latest]
	rust: [stable]

	runs-on: ${{ matrix.os }}

	steps:
	- name: Setup Rust
	uses: hecrj/setup-rust-action@v1
	with:
	rust-version: ${{ matrix.rust }}

	- name: Checkout
	uses: actions/checkout@v1

	- name: Cache target directory
	uses: actions/cache@v1
	with:
	path: target
	key: ${{ runner.os }}-cargo-build-target-${{ hashFiles('**/Cargo.lock') }}

	- name: Cache toolchains directory
	uses: actions/cache@v1
	with:
	path: ~/.rustup/toolchains
	key: ${{ runner.os }}-cargo-toolchains-${{ hashFiles('**/rust-toolchain') }}

	- name: Run tests
	run: make test

Provide feedback