changed some errors to more appropriate ones and removed unused imports #18

	name: CI Tests

	on: [push, pull_request]

	jobs:
	test:
	runs-on: ubuntu-latest
	services:
	postgres:
	image: postgres
	env:
	POSTGRES_DB: validation
	POSTGRES_USER: postgres
	POSTGRES_PASSWORD: postgres
	ports:
	- 5432:5432
	options: >-
	--health-cmd pg_isready
	--health-interval 10s
	--health-timeout 5s
	--health-retries 5
	steps:
	- name: Checkout code
	uses: actions/checkout@v3
	- name: Set up Python
	uses: actions/setup-python@v3
	with:
	python-version: '3.8'
	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install -r requirements.txt
	# - name: Connect to PostgreSQL
	# run: \|
	# python3 -m src.setup_database
	# env:
	# POSTGRES_HOST: localhost
	# POSTGRES_PORT: 5432
	- name: Run tests
	env:
	POSTGRES_HOST: localhost
	POSTGRES_PORT: 5432
	POSTGRES_USER: postgres
	POSTGRES_PASSWORD: postgres
	POSTGRES_DB: validation
	run: \|
	SERVER_LOG=$(mktemp)
	coverage run -m src.main >& $SERVER_LOG &
	serverPID=$!
	sleep 3
	pytest tests/
	kill $serverPID
	cat $SERVER_LOG
	sleep 3
	- name: Generate coverage report
	run: \|
	coverage report -m

	- name: Run pylint
	run: \|
	find src -type f -name ".py" \| egrep -v ".git/" \| xargs pylint --fail-under=8

Provide feedback