Use consistent checks for `undefined`. Explicitly require `lodash`. C… #49

	name: Run tests

	on:
	push:

	jobs:
	test:
	name: Run tests
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	- name: Set up Python
	uses: actions/setup-python@v2
	with:
	python-version: '3.10'
	- name: Cache dependencies
	uses: actions/cache@v2
	with:
	path: ~/.cache/pip
	key: ${{ runner.os }}-pip-${{ hashFiles('dev-requirements.txt') }}
	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install -r https://raw.githubusercontent.com/Dallinger/Dallinger/issues/5330-websocket-updates/dev-requirements.txt
	pip install -r dev-requirements.txt
	- name: Install dallinger
	run: \|
	pip install git+https://github.com/Dallinger/Dallinger.git@issues/5330-websocket-updates#egg=dallinger[docker]
	- name: Install experiment
	run: \|
	pip install -e .[dev]
	- name: Start dallinger services as docker containers
	run: dallinger docker start-services
	- name: Run pytest
	run: pytest --junit-xml=test-results.xml
	- name: Surface failing tests
	if: always()
	uses: pmeier/pytest-results-action@main
	with:
	path: test-results.xml
	summary: true
	display-options: fEX
	fail-on-empty: true

	pre-commit:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	- uses: actions/setup-python@v2
	- uses: pre-commit/action@v2.0.0

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