from src.disk_capacity import assess_disk_capacity, read_disk_capacity


def test_usage_at_incident_threshold_requires_action():
    status = assess_disk_capacity(total_bytes=100, available_bytes=15)

    assert status == {
        "usage_percent": 85.0,
        "threshold_percent": 85.0,
        "incident": True,
    }


def test_read_disk_capacity_assesses_a_real_filesystem(tmp_path):
    status = read_disk_capacity(tmp_path)

    assert 0 <= status["usage_percent"] <= 100
    assert status["threshold_percent"] == 85.0
    assert status["incident"] is (status["usage_percent"] >= 85.0)