Provide a useful implementation of something compatible with testing.T #542

	name: test
	on:
	push:
	branches:
	- main
	pull_request:
	jobs:
	test:
	strategy:
	matrix:
	go-version: [ 1.16.x, 1.17.x, 1.19.x, 1.20.x, 1.21.x ] # Lowest supported and current stable versions.
	runs-on: ubuntu-latest
	steps:
	- name: Install Go
	uses: actions/setup-go@v5
	with:
	go-version: ${{ matrix.go-version }}
	- name: Checkout code
	uses: actions/checkout@v4
	- name: Go cache
	uses: actions/cache@v4
	with:
	path: \|
	~/go/pkg/mod
	~/.cache/go-build
	key: ${{ runner.os }}-go-cache-${{ hashFiles('**/go.sum') }}
	restore-keys: \|
	${{ runner.os }}-go-cache
	- name: Run gofmt
	run: gofmt -d -e . 2>&1 \| tee outfile && test -z "$(cat outfile)" && rm outfile
	- name: Run staticcheck
	if: matrix.go-version == '1.20.x'
	uses: dominikh/staticcheck-action@v1.3.1
	with:
	version: "2023.1.3"
	install-go: false
	cache-key: ${{ matrix.go }}

	- name: Run go vet
	run: \|
	go vet ./...
	cd _examples && go vet ./... && cd ..
	- name: Run go test
	run: \|
	go test -v -race -coverprofile=coverage.txt -covermode=atomic ./...
	cd _examples && go test -v -race ./... && cd ..
	- name: Run godog
	run: \|
	go install ./cmd/godog
	godog -f progress --strict
	- name: Report on code coverage
	if: matrix.go-version == '1.17.x'
	uses: codecov/codecov-action@v4
	with:
	file: ./coverage.txt

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