text: import pytest
  import torch
  from torch.testing import assert_allclose
  
  from kornia.augmentation.random_generator import (
      random_rotation_generator3d,
      random_affine_generator3d,
      random_motion_blur_generator3d,
      center_crop_generator3d,
      random_crop_generator3d,
      random_perspective_generator3d,
  )
  
  
  class RandomGeneratorBaseTests():
  
      def test_valid_param_combinations(self, device, dtype):
          raise NotImplementedError
  
      def test_invalid_param_combinations(self, device, dtype):
          raise NotImplementedError
  
      def test_random_gen(self, device, dtype):
          raise NotImplementedError
  
      def test_same_on_batch(self, device, dtype):
          raise NotImplementedError
  
  
  class TestRandomPerspectiveGen3D(RandomGeneratorBaseTests):
  
      @pytest.mark.parametrize('batch_size', [0, 1, 8])
      @pytest.mark.parametrize('depth,height,width', [(200, 200, 200)])
      @pytest.mark.parametrize('distortion_scale', [torch.tensor(0.), torch.tensor(0.5), torch.tensor(1.)])
      @pytest.mark.parametrize('same_on_batch', [True, False])
      def test_valid_param_combinations(
          self, depth, height, width, distortion_scale, batch_size, same_on_batch, device, dtype
      ):
          random_perspective_generator3d(
              batch_size=batch_size, depth=depth, height=height, width=width,
              distortion_scale=distortion_scale.to(device=device, dtype=dtype), same_on_batch=same_on_batch)
  
      @pytest.mark.parametrize('depth,height,width,distortion_scale', [
          # Should be failed if distortion_scale > 1. or distortion_scale < 0.
          (-100, 100, 100, torch.tensor(0.5)),
          (100, -100, 100, torch.tensor(0.5)),
          (100, 100, -100, torch.tensor(-0.5)),
          (100, 100, 100, torch.tensor(1.5)),
          (100, 100, 100, torch.tensor([0., 0.5])),
      ])
      def test_invalid_param_combinations(self, depth, height, width, distortion_scale, device, dtype):
          with pytest.raises(Exception):
              random_perspective_generator3d(
                  batch_size=8, height=height, width=width,
                  distortion_scale=distortion_scale.to(device=device, dtype=dtype))
  
      def test_random_gen(self, device, dtype):
          torch.manual_seed(42)
          batch_size = 2
          res = random_perspective_generator3d(
              batch_size, 200, 200, 200, torch.tensor(0.5, device=device, dtype=dtype))
          expected = dict(
              start_points=torch.tensor([[[0., 0., 0.],
                                          [199., 0., 0.],
                                          [199., 199., 0.],
                                          [0., 199., 0.],
                                          [0., 0., 199.],
                                          [199., 0., 199.],
                                          [199., 199., 199.],
                                          [0., 199., 199.]],
                                         [[0., 0., 0.],
                                          [199., 0., 0.],
                                          [199., 199., 0.],
                                          [0., 199., 0.],
                                          [0., 0., 199.],
                                          [199., 0., 199.],
                                          [199., 199., 199.],
                                          [0., 199., 199.]]], device=device, dtype=dtype),
              end_points=torch.tensor(
                  [[[44.1135, 45.7502, 19.1432],
                    [151.0347, 19.5224, 30.0448],
                    [186.1714, 159.3179, 47.0386],
                    [6.6593, 152.2701, 29.6790],
                    [43.4702, 28.3858, 161.9453],
                    [177.5298, 44.2721, 170.3048],
                    [185.6710, 167.6275, 185.5184],
                    [22.0682, 184.1540, 157.4157]],
                   [[5.2657, 13.4747, 17.9406],
                    [189.0318, 27.3596, 0.3080],
                    [151.4223, 195.2367, 44.3007],
                    [29.1605, 182.1176, 40.4487],
                    [28.8963, 45.1991, 171.2670],
                    [181.8843, 31.7171, 180.7795],
                    [163.4786, 151.6794, 159.5485],
                    [14.0707, 159.5684, 169.5268]]], device=device, dtype=dtype),
          )
          assert res.keys() == expected.keys()
          assert_allclose(res['start_points'], expected['start_points'], atol=1e-4, rtol=1e-4)
          assert_allclose(res['end_points'], expected['end_points'], atol=1e-4, rtol=1e-4)
  
      def test_same_on_batch(self, device, dtype):
          torch.manual_seed(42)
          batch_size = 2
          res = random_perspective_generator3d(
              batch_size, 200, 200, 200, torch.tensor(0.5, device=device, dtype=dtype), same_on_batch=True)
          expected = dict(
              start_points=torch.tensor([[[0., 0., 0.],
                                          [199., 0., 0.],
                                          [199., 199., 0.],
                                          [0., 199., 0.],
                                          [0., 0., 199.],
                                          [199., 0., 199.],
                                          [199., 199., 199.],
                                          [0., 199., 199.]],
                                         [[0., 0., 0.],
                                          [199., 0., 0.],
                                          [199., 199., 0.],
                                          [0., 199., 0.],
                                          [0., 0., 199.],
                                          [199., 0., 199.],
                                          [199., 199., 199.],
                                          [0., 199., 199.]]], device=device, dtype=dtype),
              end_points=torch.tensor(
                  [[[44.1135, 45.7502, 19.1432],
                    [151.0347, 19.5224, 30.0448],
                    [186.1714, 159.3179, 47.0386],
                    [6.6593, 152.2701, 29.6790],
                    [43.4702, 28.3858, 161.9453],
                    [177.5298, 44.2721, 170.3048],
                    [185.6710, 167.6275, 185.5184],
                    [22.0682, 184.1540, 157.4157]],
                   [[44.1135, 45.7502, 19.1432],
                    [151.0347, 19.5224, 30.0448],
                    [186.1714, 159.3179, 47.0386],
                    [6.6593, 152.2701, 29.6790],
                    [43.4702, 28.3858, 161.9453],
                    [177.5298, 44.2721, 170.3048],
                    [185.6710, 167.6275, 185.5184],
                    [22.0682, 184.1540, 157.4157]]], device=device, dtype=dtype)
          )
          assert res.keys() == expected.keys()
          assert_allclose(res['start_points'], expected['start_points'], atol=1e-4, rtol=1e-4)
          assert_allclose(res['end_points'], expected['end_points'], atol=1e-4, rtol=1e-4)
  
  
  class TestRandomAffineGen3D(RandomGeneratorBaseTests):
  
      @pytest.mark.parametrize('batch_size', [0, 1, 8])
      @pytest.mark.parametrize('depth,height,width', [(200, 300, 400)])
      @pytest.mark.parametrize('degrees', [torch.tensor([(0, 30), (0, 30), (0, 30)])])
      @pytest.mark.parametrize('translate', [None, torch.tensor([0.1, 0.1, 0.1])])
      @pytest.mark.parametrize('scale', [None, torch.tensor([[0.7, 1.2], [0.7, 1.2], [0.7, 1.2]])])
      @pytest.mark.parametrize('shear', [None, torch.tensor([[0, 20], [0, 20], [0, 20], [0, 20], [0, 20], [0, 20]])])
      @pytest.mark.parametrize('same_on_batch', [True, False])
      def test_valid_param_combinations(
          self, batch_size, depth, height, width, degrees, translate, scale, shear, same_on_batch, device, dtype
      ):
          random_affine_generator3d(
              batch_size=batch_size, depth=depth, height=height, width=width,
              degrees=degrees.to(device=device, dtype=dtype),
              translate=translate.to(device=device, dtype=dtype) if translate is not None else None,
              scale=scale.to(device=device, dtype=dtype) if scale is not None else None,
              shears=shear.to(device=device, dtype=dtype) if shear is not None else None,
              same_on_batch=same_on_batch)
  
      @pytest.mark.parametrize('depth,height,width,degrees,translate,scale,shear', [
          (-100, 100, 100, torch.tensor([[0, 9], [0, 9], [0, 9]]), None, None, None),
          (100, -100, 100, torch.tensor([[0, 9], [0, 9], [0, 9]]), None, None, None),
          (100, 100, -100, torch.tensor([[0, 9], [0, 9], [0, 9]]), None, None, None),
          (100, 100, 100, torch.tensor([0, 9]), None, None, None),
          (100, 100, 100, torch.tensor([[0, 9], [0, 9], [0, 9]]), torch.tensor([0.1, 0.2]), None, None),
          (100, 100, 100, torch.tensor([[0, 9], [0, 9], [0, 9]]), torch.tensor([0.1, 0.2]), None, None),
          (100, 100, 100, torch.tensor([[0, 9], [0, 9], [0, 9]]), torch.tensor([0.1]), None, None),
          (100, 100, 100, torch.tensor([[0, 9], [0, 9], [0, 9]]), None, torch.tensor([[0.2, 0.2, 0.2]]), None),
          (100, 100, 100, torch.tensor([[0, 9], [0, 9], [0, 9]]), None, torch.tensor([0.2]), None),
          (100, 100, 100, torch.tensor([[0, 9], [0, 9], [0, 9]]), None, None, torch.tensor([[20, 20, 30]])),
          (100, 100, 100, torch.tensor([[0, 9], [0, 9], [0, 9]]), None, None, torch.tensor([20])),
      ])
      def test_invalid_param_combinations(
          self, depth, height, width, degrees, translate, scale, shear, device, dtype
      ):
          with pytest.raises(Exception):
              random_affine_generator3d(
                  batch_size=8, depth=depth, height=height, width=width,
                  degrees=degrees.to(device=device, dtype=dtype),
                  translate=translate.to(device=device, dtype=dtype) if translate is not None else None,
                  scale=scale.to(device=device, dtype=dtype) if scale is not None else None,
                  shears=shear.to(device=device, dtype=dtype) if shear is not None else None)
  
      def test_random_gen(self, device, dtype):
          torch.manual_seed(42)
          degrees = torch.tensor([[10, 20], [10, 20], [10, 20]])
          translate = torch.tensor([0.1, 0.1, 0.1])
          scale = torch.tensor([[0.7, 1.2], [0.7, 1.2], [0.7, 1.2]])
          shear = torch.tensor([[0, 20], [0, 20], [0, 20], [0, 20], [0, 20], [0, 20]])
          res = random_affine_generator3d(
              batch_size=2, depth=200, height=200, width=200,
              degrees=degrees.to(device=device, dtype=dtype),
              translate=translate.to(device=device, dtype=dtype) if translate is not None else None,
              scale=scale.to(device=device, dtype=dtype) if scale is not None else None,
              shears=shear.to(device=device, dtype=dtype) if shear is not None else None)
          expected = dict(
              translations=torch.tensor(
                  [[14.7762, 9.6438, 15.4177], [2.7086, -2.8238, 2.9562]], device=device, dtype=dtype),
              center=torch.tensor(
                  [[99.5000, 99.5000, 99.5000], [99.5000, 99.5000, 99.5000]], device=device, dtype=dtype),
              scale=torch.tensor(
                  [[0.8283, 1.1704, 1.1673], [1.0968, 0.7666, 0.9968]], device=device, dtype=dtype),
              angles=torch.tensor(
                  [[18.8227, 13.8286, 13.9045], [19.1500, 19.5931, 16.0090]], device=device, dtype=dtype),
              sxy=torch.tensor([5.3316, 12.5490], device=device, dtype=dtype),
              sxz=torch.tensor([5.3926, 8.8273], device=device, dtype=dtype),
              syx=torch.tensor([5.9384, 16.6337], device=device, dtype=dtype),
              syz=torch.tensor([2.1063, 5.3899], device=device, dtype=dtype),
              szx=torch.tensor([7.1763, 3.9873], device=device, dtype=dtype),
              szy=torch.tensor([10.9438, 0.1232], device=device, dtype=dtype),
          )
          assert res.keys() == expected.keys()
          assert_allclose(res['translations'], expected['translations'], rtol=1e-4, atol=1e-4)
          assert_allclose(res['center'], expected['center'], rtol=1e-4, atol=1e-4)
          assert_allclose(res['scale'], expected['scale'], rtol=1e-4, atol=1e-4)
          assert_allclose(res['angles'], expected['angles'], rtol=1e-4, atol=1e-4)
          assert_allclose(res['sxy'], expected['sxy'], rtol=1e-4, atol=1e-4)
          assert_allclose(res['sxz'], expected['sxz'], rtol=1e-4, atol=1e-4)
          assert_allclose(res['syx'], expected['syx'], rtol=1e-4, atol=1e-4)
          assert_allclose(res['syz'], expected['syz'], rtol=1e-4, atol=1e-4)
          assert_allclose(res['szx'], expected['szx'], rtol=1e-4, atol=1e-4)
          assert_allclose(res['szy'], expected['szy'], rtol=1e-4, atol=1e-4)
  
      def test_same_on_batch(self, device, dtype):
          torch.manual_seed(42)
          degrees = torch.tensor([[10, 20], [10, 20], [10, 20]])
          translate = torch.tensor([0.1, 0.1, 0.1])
          scale = torch.tensor([[0.7, 1.2], [0.7, 1.2], [0.7, 1.2]])
          shear = torch.tensor([[0, 20], [0, 20], [0, 20], [0, 20], [0, 20], [0, 20]])
          res = random_affine_generator3d(
              batch_size=2, depth=200, height=200, width=200,
              degrees=degrees.to(device=device, dtype=dtype),
              translate=translate.to(device=device, dtype=dtype) if translate is not None else None,
              scale=scale.to(device=device, dtype=dtype) if scale is not None else None,
              shears=shear.to(device=device, dtype=dtype) if shear is not None else None,
              same_on_batch=True)
          expected = dict(
              translations=torch.tensor(
                  [[-9.7371, 11.7457, 17.6309], [-9.7371, 11.7457, 17.6309]], device=device, dtype=dtype),
              center=torch.tensor(
                  [[99.5000, 99.5000, 99.5000], [99.5000, 99.5000, 99.5000]], device=device, dtype=dtype),
              scale=torch.tensor(
                  [[1.1797, 0.8952, 1.0004], [1.1797, 0.8952, 1.0004]], device=device, dtype=dtype),
              angles=torch.tensor(
                  [[18.8227, 19.1500, 13.8286], [18.8227, 19.1500, 13.8286]], device=device, dtype=dtype),
              sxy=torch.tensor([2.6637, 2.6637], device=device, dtype=dtype),
              sxz=torch.tensor([18.6920, 18.6920], device=device, dtype=dtype),
              syx=torch.tensor([11.8716, 11.8716], device=device, dtype=dtype),
              syz=torch.tensor([17.3881, 17.3881], device=device, dtype=dtype),
              szx=torch.tensor([11.3543, 11.3543], device=device, dtype=dtype),
              szy=torch.tensor([14.8219, 14.8219], device=device, dtype=dtype),
          )
          assert res.keys() == expected.keys()
          assert_allclose(res['translations'], expected['translations'], rtol=1e-4, atol=1e-4)
          assert_allclose(res['center'], expected['center'], rtol=1e-4, atol=1e-4)
          assert_allclose(res['scale'], expected['scale'], rtol=1e-4, atol=1e-4)
          assert_allclose(res['angles'], expected['angles'], rtol=1e-4, atol=1e-4)
          assert_allclose(res['sxy'], expected['sxy'], rtol=1e-4, atol=1e-4)
          assert_allclose(res['sxz'], expected['sxz'], rtol=1e-4, atol=1e-4)
          assert_allclose(res['syx'], expected['syx'], rtol=1e-4, atol=1e-4)
          assert_allclose(res['syz'], expected['syz'], rtol=1e-4, atol=1e-4)
          assert_allclose(res['szx'], expected['szx'], rtol=1e-4, atol=1e-4)
          assert_allclose(res['szy'], expected['szy'], rtol=1e-4, atol=1e-4)
  
  
  class TestRandomRotationGen3D(RandomGeneratorBaseTests):
  
      @pytest.mark.parametrize('batch_size', [0, 1, 8])
      @pytest.mark.parametrize('degrees', [torch.tensor([[0, 30], [0, 30], [0, 30]])])
      @pytest.mark.parametrize('same_on_batch', [True, False])
      def test_valid_param_combinations(self, batch_size, degrees, same_on_batch, device, dtype):
          random_rotation_generator3d(
              batch_size=batch_size, degrees=degrees.to(device=device, dtype=dtype), same_on_batch=same_on_batch)
  
      @pytest.mark.parametrize('degrees', [
          (torch.tensor(10)),
          (torch.tensor([10])),
          (torch.tensor([[0, 30]])),
          (torch.tensor([[0, 30], [0, 30]])),
      ])
      def test_invalid_param_combinations(self, degrees, device, dtype):
          with pytest.raises(Exception):
              random_rotation_generator3d(
                  batch_size=8, degrees=degrees.to(device=device, dtype=dtype))
  
      def test_random_gen(self, device, dtype):
          torch.manual_seed(42)
          degrees = torch.tensor([[0, 30], [0, 30], [0, 30]])
          res = random_rotation_generator3d(
              batch_size=2, degrees=degrees.to(device=device, dtype=dtype), same_on_batch=False)
          expected = dict(
              yaw=torch.tensor([26.4681, 27.4501], device=device, dtype=dtype),
              pitch=torch.tensor([11.4859, 28.7792], device=device, dtype=dtype),
              roll=torch.tensor([11.7134, 18.0269], device=device, dtype=dtype)
          )
          assert res.keys() == expected.keys()
          assert_allclose(res['yaw'], expected['yaw'], atol=1e-4, rtol=1e-4)
          assert_allclose(res['pitch'], expected['pitch'], atol=1e-4, rtol=1e-4)
          assert_allclose(res['roll'], expected['roll'], atol=1e-4, rtol=1e-4)
  
      def test_same_on_batch(self, device, dtype):
          torch.manual_seed(42)
          degrees = torch.tensor([[0, 30], [0, 30], [0, 30]])
          res = random_rotation_generator3d(
              batch_size=2, degrees=degrees.to(device=device, dtype=dtype), same_on_batch=True)
          expected = dict(
              yaw=torch.tensor([26.4681, 26.4681], device=device, dtype=dtype),
              pitch=torch.tensor([27.4501, 27.4501], device=device, dtype=dtype),
              roll=torch.tensor([11.4859, 11.4859], device=device, dtype=dtype)
          )
          assert res.keys() == expected.keys()
          assert_allclose(res['yaw'], expected['yaw'], atol=1e-4, rtol=1e-4)
          assert_allclose(res['pitch'], expected['pitch'], atol=1e-4, rtol=1e-4)
          assert_allclose(res['roll'], expected['roll'], atol=1e-4, rtol=1e-4)
  
  
  class TestRandomCropGen3D(RandomGeneratorBaseTests):
  
      @pytest.mark.parametrize('batch_size', [0, 2])
      @pytest.mark.parametrize('input_size', [(200, 200, 200)])
      @pytest.mark.parametrize('size', [(100, 100, 100), torch.tensor([50, 60, 70])])
      @pytest.mark.parametrize('resize_to', [None, (100, 100, 100)])
      @pytest.mark.parametrize('same_on_batch', [True, False])
      def test_valid_param_combinations(
          self, batch_size, input_size, size, resize_to, same_on_batch, device, dtype
      ):
          if isinstance(size, torch.Tensor):
              size = size.repeat(batch_size, 1).to(device=device, dtype=dtype)
          random_crop_generator3d(
              batch_size=batch_size, input_size=input_size,
              size=size.to(device=device, dtype=dtype) if isinstance(size, torch.Tensor) else size,
              resize_to=resize_to,
              same_on_batch=same_on_batch)
  
      @pytest.mark.parametrize('input_size,size,resize_to', [
          ((-300, 300, 300), (200, 200, 200), (100, 100, 100)),
          ((100, 100, 100), (200, 200, 200), (100, 100, 100)),
          ((200, 200, 200), torch.tensor([50, 50, 50]), (100, 100, 100)),
          ((100, 100, 100), torch.tensor([[50, 60, 70], [50, 60, 70]]), (100, 100)),
      ])
      def test_invalid_param_combinations(self, input_size, size, resize_to, device, dtype):
          with pytest.raises(Exception):
              random_crop_generator3d(
                  batch_size=2, input_size=input_size,
                  size=size.to(device=device, dtype=dtype) if isinstance(size, torch.Tensor) else size,
                  resize_to=resize_to)
  
      def test_random_gen(self, device, dtype):
          torch.manual_seed(42)
          res = random_crop_generator3d(
              batch_size=2, input_size=(200, 200, 200),
              size=torch.tensor([[50, 60, 70], [50, 60, 70]], device=device, dtype=dtype),
              resize_to=(100, 100, 100))
          expected = dict(
              src=torch.tensor(
                  [[[115, 53, 58],
                    [184, 53, 58],
                    [184, 112, 58],
                    [115, 112, 58],
                    [115, 53, 107],
                    [184, 53, 107],
                    [184, 112, 107],
                    [115, 112, 107]],
                   [[119, 135, 90],
                    [188, 135, 90],
                    [188, 194, 90],
                    [119, 194, 90],
                    [119, 135, 139],
                    [188, 135, 139],
                    [188, 194, 139],
                    [119, 194, 139]]], device=device, dtype=torch.long),
              dst=torch.tensor([[[0, 0, 0],
                                 [99, 0, 0],
                                 [99, 99, 0],
                                 [0, 99, 0],
                                 [0, 0, 99],
                                 [99, 0, 99],
                                 [99, 99, 99],
                                 [0, 99, 99]],
                                [[0, 0, 0],
                                 [99, 0, 0],
                                 [99, 99, 0],
                                 [0, 99, 0],
                                 [0, 0, 99],
                                 [99, 0, 99],
                                 [99, 99, 99],
                                 [0, 99, 99]]], device=device, dtype=torch.long),
          )
          assert res.keys() == expected.keys()
          assert_allclose(res['src'], expected['src'], atol=1e-4, rtol=1e-4)
          assert_allclose(res['dst'], expected['dst'], atol=1e-4, rtol=1e-4)
  
      def test_same_on_batch(self, device, dtype):
          torch.manual_seed(42)
          res = random_crop_generator3d(
              batch_size=2, input_size=(200, 200, 200),
              size=torch.tensor([[50, 60, 70], [50, 60, 70]], device=device, dtype=dtype),
              resize_to=(100, 100, 100), same_on_batch=True)
          expected = dict(
              src=torch.tensor(
                  [[[115, 129, 57],
                    [184, 129, 57],
                    [184, 188, 57],
                    [115, 188, 57],
                    [115, 129, 106],
                    [184, 129, 106],
                    [184, 188, 106],
                    [115, 188, 106]],
                   [[115, 129, 57],
                    [184, 129, 57],
                    [184, 188, 57],
                    [115, 188, 57],
                    [115, 129, 106],
                    [184, 129, 106],
                    [184, 188, 106],
                    [115, 188, 106]]], device=device, dtype=torch.long),
              dst=torch.tensor([[[0, 0, 0],
                                 [99, 0, 0],
                                 [99, 99, 0],
                                 [0, 99, 0],
                                 [0, 0, 99],
                                 [99, 0, 99],
                                 [99, 99, 99],
                                 [0, 99, 99]],
                                [[0, 0, 0],
                                 [99, 0, 0],
                                 [99, 99, 0],
                                 [0, 99, 0],
                                 [0, 0, 99],
                                 [99, 0, 99],
                                 [99, 99, 99],
                                 [0, 99, 99]]], device=device, dtype=torch.long),
          )
          assert res.keys() == expected.keys()
          assert_allclose(res['src'], expected['src'], atol=1e-4, rtol=1e-4)
          assert_allclose(res['dst'], expected['dst'], atol=1e-4, rtol=1e-4)
  
  
  class TestCenterCropGen3D(RandomGeneratorBaseTests):
  
      @pytest.mark.parametrize('batch_size', [0, 2])
      @pytest.mark.parametrize('depth,height,width', [(200, 200, 200)])
      @pytest.mark.parametrize('size', [(100, 100, 100)])
      def test_valid_param_combinations(
          self, batch_size, depth, height, width, size, device, dtype
      ):
          center_crop_generator3d(batch_size=batch_size, depth=depth, height=height, width=width, size=size)
  
      @pytest.mark.parametrize('depth,height,width,size', [
          (200, 200, -200, (100, 100, 100)),
          (200, -200, 200, (100, 100)),
          (200, 100, 100, (300, 120, 100)),
          (200, 150, 100, (120, 180, 100)),
          (200, 100, 150, (120, 80, 200)),
      ])
      def test_invalid_param_combinations(self, depth, height, width, size, device, dtype):
          with pytest.raises(Exception):
              center_crop_generator3d(
                  batch_size=2, depth=depth, height=height, width=width, size=size)
  
      def test_random_gen(self, device, dtype):
          torch.manual_seed(42)
          res = center_crop_generator3d(batch_size=2, depth=200, height=200, width=200, size=(120, 150, 100))
          expected = dict(
              src=torch.tensor([
                  [[50, 25, 40],
                   [149, 25, 40],
                   [149, 174, 40],
                   [50, 174, 40],
                   [50, 25, 159],
                   [149, 25, 159],
                   [149, 174, 159],
                   [50, 174, 159]]], device=device, dtype=torch.long),
              dst=torch.tensor([
                  [[0, 0, 0],
                   [99, 0, 0],
                   [99, 149, 0],
                   [0, 149, 0],
                   [0, 0, 119],
                   [99, 0, 119],
                   [99, 149, 119],
                   [0, 149, 119]]], device=device, dtype=torch.long),
          )
          assert res.keys() == expected.keys()
          assert_allclose(res['src'].to(device=device), expected['src'], atol=1e-4, rtol=1e-4)
          assert_allclose(res['dst'].to(device=device), expected['dst'], atol=1e-4, rtol=1e-4)
  
      def test_same_on_batch(self, device, dtype):
          pass
  
  
  class TestRandomMotionBlur3D(RandomGeneratorBaseTests):
  
      @pytest.mark.parametrize('batch_size', [0, 1, 8])
      @pytest.mark.parametrize('kernel_size', [3, (3, 5)])
      @pytest.mark.parametrize('angle', [torch.tensor([(10, 30), (30, 60), (60, 90)])])
      @pytest.mark.parametrize('direction', [torch.tensor([-1, -1]), torch.tensor([-1, 1]), torch.tensor([1, 1])])
      @pytest.mark.parametrize('same_on_batch', [True, False])
      def test_valid_param_combinations(self, batch_size, kernel_size, angle, direction, same_on_batch, device, dtype):
          random_motion_blur_generator3d(
              batch_size=batch_size, kernel_size=kernel_size,
              angle=angle.to(device=device, dtype=dtype),
              direction=direction.to(device=device, dtype=dtype),
              same_on_batch=same_on_batch)
  
      @pytest.mark.parametrize('kernel_size,angle,direction', [
          (4, torch.tensor([(10, 30), (30, 60), (60, 90)]), torch.tensor([-1, 1])),
          (1, torch.tensor([(10, 30), (30, 60), (60, 90)]), torch.tensor([-1, 1])),
          ((3, 4, 5), torch.tensor([(10, 30), (30, 60), (60, 90)]), torch.tensor([-1, 1])),
          (3, torch.tensor([(10, 30), (30, 60), (60, 90)]), torch.tensor([-2, 1])),
          (3, torch.tensor([(10, 30), (30, 60), (60, 90)]), torch.tensor([-1, 2])),
      ])
      def test_invalid_param_combinations(self, kernel_size, angle, direction, device, dtype):
          with pytest.raises(Exception):
              random_motion_blur_generator3d(
                  batch_size=8, kernel_size=kernel_size, angle=angle.to(device=device, dtype=dtype),
                  direction=direction.to(device=device, dtype=dtype))
  
      def test_random_gen(self, device, dtype):
          torch.manual_seed(42)
          angle = torch.tensor([(10, 30), (30, 60), (60, 90)])
          direction = torch.tensor([-1, 1])
          res = random_motion_blur_generator3d(
              batch_size=2, kernel_size=3, angle=angle.to(device=device, dtype=dtype),
              direction=direction.to(device=device, dtype=dtype), same_on_batch=False)
          expected = dict(
              ksize_factor=torch.tensor([3, 3], device=device, dtype=torch.int32),
              angle_factor=torch.tensor([
                  [27.6454, 41.4859, 71.7134],
                  [28.3001, 58.7792, 78.0269]], device=device, dtype=dtype),
              direction_factor=torch.tensor([-0.4869, 0.5873], device=device, dtype=dtype)
          )
          assert res.keys() == expected.keys()
          assert_allclose(res['ksize_factor'], expected['ksize_factor'], rtol=1e-4, atol=1e-4)
          assert_allclose(res['angle_factor'], expected['angle_factor'], rtol=1e-4, atol=1e-4)
          assert_allclose(res['direction_factor'], expected['direction_factor'], rtol=1e-4, atol=1e-4)
  
      def test_same_on_batch(self, device, dtype):
          torch.manual_seed(42)
          angle = torch.tensor([(10, 30), (30, 60), (60, 90)])
          direction = torch.tensor([-1, 1])
          res = random_motion_blur_generator3d(
              batch_size=2, kernel_size=3, angle=angle.to(device=device, dtype=dtype),
              direction=direction.to(device=device, dtype=dtype), same_on_batch=True)
          expected = dict(
              ksize_factor=torch.tensor([3, 3], device=device, dtype=torch.int32),
              angle_factor=torch.tensor([
                  [27.6454, 57.4501, 71.4859],
                  [27.6454, 57.4501, 71.4859]], device=device, dtype=dtype),
              direction_factor=torch.tensor([0.9186, 0.9186], device=device, dtype=dtype)
          )
          assert res.keys() == expected.keys()
          assert_allclose(res['ksize_factor'], expected['ksize_factor'], rtol=1e-4, atol=1e-4)
          assert_allclose(res['angle_factor'], expected['angle_factor'], rtol=1e-4, atol=1e-4)
          assert_allclose(res['direction_factor'], expected['direction_factor'], rtol=1e-4, atol=1e-4)
  