from pathlib import Path


def test_gcp_artifact_workflow_retains_immutable_image_digest() -> None:
    workflow = Path(".github/workflows/gcp-artifact.yml").read_text()

    assert "docker push" in workflow
    assert "tee docker-push.log" in workflow
    assert "image_digest=" in workflow
    assert "image_ref=" in workflow
    assert "test -n \"${image_digest}\"" in workflow