added dependencies and pytest to ci file #1

	name: CI # Give this workflow a name

	on: # Define when the workflow runs
	push:
	branches: ["main"] # run this workflow when pushing to main
	pull_request:
	branches: ["main"] # run this workflow when pulling from main
	jobs:
	build:
	runs-on: ubuntu-latest # run this job inside an Ubuntu Linux VM

	strategy:
	matrix:
	python-version: ["3.9","3.10","3.11","3.12"] # Test against multiple python versions - if one fails the whoel workflow fails
	steps:
	- uses: actions/checkout@v4

	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v5
	with:
	python-version: ${{ matrix.python-version }}


	- name: Chache pip
	uses: actions/cache@v4
	with:
	path: ~/.cache/pip
	# Cache is unique per OS + Python version. Reqs content
	key: $ {{ runner.os }}-pip-${{ matrix.python-version }}-${{ hashFiles('**/requirements.txt') }}
	restore-keys: \|
	${{ runner.os }}-pip-${{ matrix.python-version }}-
	${{ runner.os }}-pip-

	- name: Install dependencies
	run: pip install -r requirements.txt # executes shell command in VM

	- name: Run tests
	run: pytest

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