old_contents: """Test the ``dtool dataset create`` command."""
  
  import os
  import shutil
  
  from click.testing import CliRunner
  
  from dtoolcore import DataSet
  
  from . import chdir_fixture, tmp_dir_fixture  # NOQA
  from . import SAMPLE_FILES_DIR
  
  
  def test_dataset_freeze_functional(chdir_fixture):  # NOQA
      from dtool_create.dataset import freeze
      runner = CliRunner()
  
      # Create an empty dataset
      dataset_name = "my_dataset"
      dataset = DataSet(dataset_name, data_directory="data")
      dataset.persist_to_path(".")
  
      # Add some files to it.
      dest_dir = os.path.join(".", dataset.data_directory, "sample_files")
      shutil.copytree(SAMPLE_FILES_DIR, dest_dir)
  
      # At this point the manifest has not been updated.
      assert len(dataset.identifiers) == 0
  
      result = runner.invoke(freeze, ["."])
      assert result.exit_code == 0
  
      # Manifest has been updated.
      assert len(dataset.identifiers) == 2
  
new_contents: """Test the ``dtool dataset create`` command."""
  
  import os
  import shutil
  
  from click.testing import CliRunner
  
  from dtoolcore import DataSet, ProtoDataSet
  
  from . import chdir_fixture, tmp_dir_fixture  # NOQA
  from . import SAMPLE_FILES_DIR
  
  
  def test_dataset_freeze_functional(chdir_fixture):  # NOQA
      from dtool_create.dataset import create, freeze
      runner = CliRunner()
  
      dataset_name = "my_dataset"
      result = runner.invoke(create, [dataset_name])
      assert result.exit_code == 0
  
      # At this point we have a proto dataset
      dataset_abspath = os.path.abspath(dataset_name)
      dataset_uri = "disk:{}".format(dataset_abspath)
      dataset = ProtoDataSet.from_uri(dataset_uri)
  
      # Add a file to the proto dataset.
      sample_file_abspath = os.path.join(dataset_abspath, "data", "hello.txt")
      with open(sample_file_abspath, "w") as fh:
          fh.write("hello world")
  
      result = runner.invoke(freeze, [dataset_uri])
      assert result.exit_code == 0
  
  
      # Now we have a dataset.
      dataset = DataSet.from_uri(dataset_uri)
  
      # Manifest has been updated.
      assert len(dataset.identifiers) == 1
  
subject: Fix the freeze functional test