fix(empty dashboards): Allow downloading a screenshot of an empty das… #18618

	# Python unit tests
	name: Python-Unit

	on:
	push:
	branches:
	- "master"
	- "[0-9].[0-9]*"
	pull_request:
	types: [synchronize, opened, reopened, ready_for_review]

	# cancel previous workflow jobs for PRs
	concurrency:
	group: ${{ github.workflow }}-${{ github.event.pull_request.number \|\| github.run_id }}
	cancel-in-progress: true

	jobs:
	unit-tests:
	runs-on: ubuntu-22.04
	strategy:
	matrix:
	python-version: ["current", "next"]
	env:
	PYTHONPATH: ${{ github.workspace }}
	steps:
	- name: "Checkout ${{ github.ref }} ( ${{ github.sha }} )"
	uses: actions/checkout@v4
	with:
	persist-credentials: false
	submodules: recursive
	- name: Check for file changes
	id: check
	uses: ./.github/actions/change-detector/
	with:
	token: ${{ secrets.GITHUB_TOKEN }}
	- name: Setup Python
	uses: ./.github/actions/setup-backend/
	if: steps.check.outputs.python
	with:
	python-version: ${{ matrix.python-version }}
	- name: Python unit tests
	if: steps.check.outputs.python
	env:
	SUPERSET_TESTENV: true
	SUPERSET_SECRET_KEY: not-a-secret
	run: \|
	pytest --durations-min=0.5 --cov-report= --cov=superset ./tests/common ./tests/unit_tests --cache-clear
	- name: Upload code coverage
	uses: codecov/codecov-action@v4
	with:
	flags: python,unit
	token: ${{ secrets.CODECOV_TOKEN }}
	verbose: true

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