fix some tests and code according to the linter rules #4

	name: Run Tests

	on:
	push:
	branches:
	- '*'
	pull_request:
	branches:
	- '*'

	jobs:
	tests:
	runs-on: ubuntu-latest
	services:
	redis:
	image: redis:latest
	ports:
	- 6379:6379
	options: --name redis-test
	steps:
	- name: Use Node.js 8.x
	uses: actions/setup-node@v2
	with:
	node-version: '8.x'
	- name: Checkout Repository
	uses: actions/checkout@v2

	- name: Set up Docker Buildx
	uses: docker/setup-buildx-action@v1

	- name: Setup
	run: \|
	make setup
	- name: Lint
	run: \|
	make lint
	- name: Unit & Integration Tests
	env:
	REDIS_ENDPOINT: "localhost:${{ job.services.redis.ports['6379'] }}"
	run: \|
	REDIS_ENDPOINT=${REDIS_ENDPOINT} make test

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