fix #42 default skew to 1 #88

	# This workflow runs the unit test (`go test ./...`) on vaious platforms,
	# such as: Linux, macOS and Windows.
	name: PlatformTests

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

	jobs:
	coverage:
	name: Unit test

	strategy:
	matrix:
	platform: [ubuntu-latest, macos-latest, windows-latest]

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

	steps:
	- uses: actions/checkout@v4

	- uses: actions/setup-go@v5
	with:
	go-version: '1'
	check-latest: true

	- name: Create image tag from file hash
	uses: KEINOS/gh-action-hash-for-cache@main
	id: imagetag
	# Udate the hash if Dockerfile/go.mod is changed or the month has changed.
	with:
	path: \|
	./go.mod
	./.github/Dockerfile
	./.github/docker-compose.yml
	variant: ${{ runner.os }}$(TZ=UTC-9 date '+%Y%m')

	- name: Use Cache
	uses: actions/cache@v4
	with:
	path: ~/go/pkg/mod
	key: ${{ steps.imagetag.outputs.hash }}

	- name: Run unit test
	run: \|
	go mod download
	go test -race -v ./...

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