add empty string handler #28

	name: Unit Tests

	on:
	pull_request:
	push:
	branches:
	- main

	jobs:
	setup:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	- name: Set up Python 3.9
	uses: actions/setup-python@v4
	with:
	python-version: 3.9
	cache: "pip" # caching pip dependencies

	- name: Check out Prodigy
	uses: actions/checkout@v3
	with:
	repository: explosion/prodigy
	ref: v1.14.11
	path: ./prodigy
	ssh-key: ${{ secrets.GHA_PRODIGY_READ }}

	- name: Install prodigy
	run: \|
	ls -la
	pip install ./prodigy

	- name: Install dependencies
	run: \|
	pip install --upgrade pip
	pip install -e .
	pip install ruff pytest playwright
	playwright install

	- name: Run help
	if: always()
	shell: bash
	run: \|
	python -m prodigy --help

	- name: Run ruff
	if: always()
	shell: bash
	run: python -m ruff prodigy_lunr tests

	- name: Run pytest unit tests
	if: always()
	shell: bash
	run: python -m pytest tests -m "not e2e" -vvv

	- name: Run e2e tests
	if: always()
	shell: bash
	run: python -m pytest tests -m "e2e" -vvv

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