code: def test_select_all_batch():
      competences = np.array(
          [
              [1.0, 1.0, 0.5],
              [0.8, 0.9, 0.9],
              [0.15, 0.15, 0.15],
              [0.0, 0.0, 0.0],
          ]
      )
      expected = np.array(
          [
              [True, True, False],
              [False, True, True],
              [True, True, True],
              [True, True, True],
          ]
      )
      dcs_test = BaseDCS(selection_method="all")
      selected_clf = dcs_test.select(competences)
      assert np.array_equal(selected_clf, expected)
  
imports: from unittest.mock import MagicMock
  import numpy
  import pytest
  from deslib.dcs.base import BaseDCS
label_desc: Use image node_id 10 for calling a global function with example usage: test_select_all_batch() without return types