Separated plotting functions, fixed bugs, added lower level testing #39

	name: Python Tests

	on: [push, pull_request]

	jobs:
	build:

	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v2

	- name: Set up Python
	uses: actions/setup-python@v2
	with:
	python-version: 3.x

	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install .

	- name: Install pytest
	run: \|
	pip install pytest pytest-cov

	- name: Run tests
	run: \|
	pytest --cov=gcms_data_analysis --cov-report=html

	- name: Generate Badge
	run: \|
	COVERAGE=$(cat docs/htmlcov/index.html \| grep -oP '(?<=<td class="right">)[0-9]+\.[0-9]+%' \| head -n 1 \| tr -d '%')
	curl "https://img.shields.io/badge/coverage-$COVERAGE-green.svg" > coverage.svg

	- name: Upload Badge
	uses: actions/upload-artifact@v2
	with:
	name: coverage-badge
	path: coverage.svg

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