old_contents: import pytest
  
new_contents: import pytest
  
  from ..s3 import Bucket
  
  
  def test_bucket_init():
      name = 'hello world'
      test_bucket = Bucket(name, service=None)
      assert test_bucket.name is name
  
  
  def test_bucket_missing_params():
      with pytest.raises(TypeError):
          test_bucket = Bucket(service=None)
  
      with pytest.raises(TypeError):
          test_bucket = Bucket()
  
  
  def test_bucket_list():
  
      pass
subject: add tests for s3