from deep_search_agent import ScratchDeepAgent


def test_agent_creates_and_flushes_virtual_files(tmp_path):
    agent = ScratchDeepAgent()
    report = agent.run("LangGraph")
    written = agent.flush_files(str(tmp_path))

    assert "Search report" in report
    assert "report.md" in agent.virtual_files
    assert all(path.exists() for path in written)