add check for empty result #97

	---
	# This workflow will install Python dependencies and run tests so that
	# unit tests can be run against pull requests.

	name: Unit-Tests

	on:
	pull_request:
	paths-ignore:
	- '**.md' # All markdown files in the repository
	workflow_call:

	jobs:
	unit-test:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- uses: actions/cache@v3
	with:
	path: ~/.cache/pip
	key: ${{ runner.os }}-pip-${{ hashFiles('**/requirements.txt') }}
	restore-keys: \|
	${{ runner.os }}-pip-
	- name: Set up Python 3.11
	uses: actions/setup-python@v4
	with:
	python-version: 3.11
	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install -r requirements-dev.txt
	pip install pytest
	- name: Test with Pytest unit tests
	run: \|
	export DEBUG=True
	python -m pytest

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