docstr: Test `_get_instructions` with 2 revisions selected.
docstr_tok: ["Test","`","_get_instructions","`","with","2","revisions","selected","."]
code: def test_get_expectations_str_with_selection(self) -> None:
      """Test `_get_instructions` with 2 revisions selected."""
      strategy_mock = Mock()
      strategy_mock.expected_freed_size_str = "5.1M"
  
      cache_mock = Mock()
      cache_mock.delete_revisions.return_value = strategy_mock
  
      self.assertEqual(
          _get_expectations_str(
              hf_cache_info=cache_mock,
              selected_hashes=["hash_1", "hash_2"],
          ),
          "2 revisions selected counting for 5.1M.",
      )
      cache_mock.delete_revisions.assert_called_once_with(
          "hash_1", "hash_2"
      )
  
imports: import os
  import unittest
  from pathlib import Path
  from tempfile import mkstemp
  from unittest.mock import Mock, patch
  from InquirerPy.base.control import Choice
  from InquirerPy.separator import Separator
  from huggingface_hub.commands.delete_cache import _CANCEL_DELETION_STR, DeleteCacheCommand, _ask_for_confirmation_no_tui, _get_expectations_str, _get_tui_choices_from_scan, _manual_review_no_tui, _read_manual_review_tmp_file
  from huggingface_hub.utils import SoftTemporaryDirectory, capture_output
  from .testing_utils import handle_injection
label_desc: Use image node_id 4 for calling the TestDeleteCacheHelpers obj's underlying member method code with example usage: obj.test_get_expectations_str_with_selection() without return types