Non-deterministic fuzz tests #237

	name: Non-deterministic fuzz tests
	on:
	workflow_dispatch:
	schedule:
	# Run nightly at 0300
	- cron: "0 3 * * *"

	permissions:
	contents: read

	concurrency:
	group: ${{ github.workflow }}-${{ github.ref }}
	cancel-in-progress: true

	env:
	# How long should we run the fuzzing for, in seconds.
	NOIR_AST_FUZZER_BUDGET_SECS: 300

	jobs:
	ast-fuzz:
	runs-on: ubuntu-latest
	permissions:
	contents: read
	steps:
	- name: Checkout
	uses: actions/checkout@v6

	- name: Setup toolchain
	uses: dtolnay/[email protected]
	with:
	targets: x86_64-unknown-linux-gnu

	- uses: taiki-e/install-action@just

	- name: Run fuzzer
	run: just fuzz-nightly
	env:
	GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
	RUST_MIN_STACK: 8388608

	- name: Get current date
	id: date
	run: echo "DAY=date::$(date +'%u')" >> $GITHUB_OUTPUT

	- name: Send an alert in slack
	# Send notifications on weekdays if there's a failure.
	if: ${{ failure() && steps.date.outputs.DAY <= 5 }}
	uses: slackapi/[email protected]
	with:
	webhook: ${{ secrets.FUZZING_ALERT_URL }}
	webhook-type: webhook-trigger
	payload: \|
	workflow-url: ${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}

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