code: def test_set_data(self):
      data_list1 = list(range(10))
  
      transform = Lambda(func=lambda x: np.array([x * 10]))
  
      dataset = SmartCacheDataset(
          data=data_list1,
          transform=transform,
          cache_rate=0.5,
          replace_rate=0.4,
          num_init_workers=4,
          num_replace_workers=2,
          shuffle=False,
          progress=True,
      )
  
      num_workers = 2 if sys.platform == "linux" else 0
      dataloader = DataLoader(
          dataset=dataset, num_workers=num_workers, batch_size=1
      )
  
      dataset.start()
      for i, d in enumerate(dataloader):
          np.testing.assert_allclose([[data_list1[i] * 10]], d)
      # replace cache content, move forward 2(5 * 0.4) items
      dataset.update_cache()
      for i, d in enumerate(dataloader):
          np.testing.assert_allclose([[data_list1[i + 2] * 10]], d)
      # shutdown to update data
      dataset.shutdown()
      # update the datalist and fill the cache content
      data_list2 = list(range(-10, 0))
      dataset.set_data(data=data_list2)
      # restart the dataset
      dataset.start()
      # rerun with updated cache content
      for i, d in enumerate(dataloader):
          np.testing.assert_allclose([[data_list2[i] * 10]], d)
      # replace cache content, move forward 2(5 * 0.4) items
      dataset.update_cache()
      for i, d in enumerate(dataloader):
          np.testing.assert_allclose([[data_list2[i + 2] * 10]], d)
      # finally shutdown the dataset
      dataset.shutdown()
  
file_path: MONAI/tests/test_smartcachedataset.py
imports: from __future__ import annotations
  import copy
  import os
  import sys
  import tempfile
  import unittest
  import nibabel
  import numpy
  import torch
  from parameterized import parameterized
  from monai.data import DataLoader, SmartCacheDataset
  from monai.transforms import Compose, Lambda, LoadImaged
  from tests.utils import assert_allclose
label_desc: Use image node_id 4 for calling the TestSmartCacheDataset obj's underlying member method code with example usage: obj.test_set_data() without return types