content: import random
  import unittest
  from unittest.mock import patch
  
  from pyecharts import options as opts
  from pyecharts.charts import Scatter3D
  from pyecharts.faker import Faker
  
  
  class TestScatter3D(unittest.TestCase):
      @patch("pyecharts.render.engine.write_utf8_html_file")
      def test_scatter3d_base(self, fake_writer):
          data = [
              [random.randint(0, 100), random.randint(0, 100), random.randint(0, 100)]
              for _ in range(80)
          ]
          c = (
              Scatter3D()
              .add("", data)
              .set_global_opts(
                  visualmap_opts=opts.VisualMapOpts(range_color=Faker.visual_color)
              )
          )
          c.render()
          _, content = fake_writer.call_args[0]
          self.assertEqual(c.theme, "white")
          self.assertEqual(c.renderer, "canvas")
  