code: def test_geomtransform(self):
      # test assertion for invalid prob
      with self.assertRaises(AssertionError):
          transform = GeomTransform(
              prob=-0.5, level=1, min_mag=0.0, max_mag=1.0
          )
  
      # test assertion for invalid value of level
      with self.assertRaises(AssertionError):
          transform = GeomTransform(
              prob=0.5, level=-1, min_mag=0.0, max_mag=1.0
          )
  
      # test assertion for invalid value of min_mag and max_mag
      with self.assertRaises(AssertionError):
          transform = ShearX(
              prob=0.5, level=2, min_mag=1.0, max_mag=0.0
          )
  
      # test assertion for the num of elements in tuple img_border_value
      with self.assertRaises(AssertionError):
          transform = GeomTransform(
              prob=0.5,
              level=1,
              min_mag=0.0,
              max_mag=1.0,
              img_border_value=(128, 128, 128, 128),
          )
  
      # test ValueError for invalid type of img_border_value
      with self.assertRaises(ValueError):
          transform = GeomTransform(
              prob=0.5,
              level=1,
              min_mag=0.0,
              max_mag=1.0,
              img_border_value=[128, 128, 128],
          )
  
      # test assertion for invalid value of img_border_value
      with self.assertRaises(AssertionError):
          transform = GeomTransform(
              prob=0.5,
              level=1,
              min_mag=0.0,
              max_mag=1.0,
              img_border_value=(128, -1, 256),
          )
  
      # test case when no aug (prob=0)
      transform = GeomTransform(
          prob=0.0,
          level=10,
          min_mag=0.0,
          max_mag=1.0,
          img_border_value=self.img_border_value,
      )
      results_wo_aug = transform(copy.deepcopy(self.results_mask))
      check_result_same(
          self.results_mask, results_wo_aug, self.check_keys
      )
  
imports: import copy
  import unittest
  import numpy
  from mmdet.datasets.transforms import GeomTransform, Rotate, ShearX, ShearY, TranslateX, TranslateY
  from mmdet.structures.bbox import HorizontalBoxes
  from mmdet.structures.mask import BitmapMasks, PolygonMasks
  from .utils import check_result_same, construct_toy_data
label_desc: Use image node_id 2 for calling the TestGeomTransform obj's underlying member method code with example usage: obj.test_geomtransform() without return types