code: def test_divicon():
      html = """<svg height="100" width="100">
                <circle cx="50" cy="50" r="40" stroke="black" stroke-width="3" fill="red" />
                </svg>"""  # noqa
      div = folium.DivIcon(html=html)
      assert isinstance(div, Element)
      assert div.options["className"] == "empty"
      assert div.options["html"] == html
  
imports: import json
  import os
  import warnings
  import pytest
  from branca.element import Element
  import folium
  from folium import Choropleth, ClickForMarker, GeoJson, Map, Popup
label_desc: Use image node_id 7 for calling a global function with example usage: test_divicon() without return types