return results instead of none when CODS soiling signal is small #1207

	name: pytest

	on:
	push:
	branches:
	- master
	- development
	pull_request:


	jobs:
	build:

	runs-on: ubuntu-latest
	strategy:
	matrix:
	python-version: ["3.7", "3.8", "3.9", "3.10"]
	env: [
	'-r requirements.txt .[test]',
	'-r requirements-min.txt .[test]',
	'--upgrade --upgrade-strategy=eager .[test]'
	]
	exclude:
	- python-version: 3.8
	env: '-r requirements-min.txt .[test]'
	- python-version: 3.9
	env: '-r requirements-min.txt .[test]'
	- python-version: "3.10"
	env: '-r requirements-min.txt .[test]'
	# required numpy is not available on python 3.7, so exclude:
	- python-version: 3.7
	env: '-r requirements.txt .[test]'

	steps:
	- uses: actions/checkout@v2
	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v2
	with:
	python-version: ${{ matrix.python-version }}
	- name: Install ${{ matrix.env }}
	run: \|
	python -m pip install --upgrade pip wheel
	pip install --timeout=300 ${{ matrix.env }}
	- name: Test with pytest ${{ matrix.env }}
	run: \|
	pytest

Provide feedback