fix: panic to write in close channel #174

	name: Test
	on:
	push:
	branches:
	- main
	pull_request:
	jobs:
	unittest:
	name: Unit Test
	runs-on: ubuntu-latest
	strategy:
	matrix:
	go-version: [ stable, oldstable ]
	steps:

	- name: Set up Go
	uses: actions/setup-go@v3
	with:
	go-version: ${{ matrix.go-version }}

	- name: Check out code into the Go module directory
	uses: actions/checkout@v3

	- name: Run unit tests
	run: go test ./...

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