def test_perform_import_that_import_from_list_is_called_for_each_element(
         self):
     perform_import(["a", "b", "c"], "xyz")
     expected_calls = [call("a", "xyz"), call("b", "xyz"), call("c", "xyz")]
     self.assertListEqual(expected_calls,
                          self.mock_import_from_string.mock_calls)
 def test_perform_import_that_import_from_string_is_called_once_on_string_value(
         self):
     perform_import("abc", "xyz")
     expected_calls = [call("abc", "xyz")]
     self.assertEqual(expected_calls,
                      self.mock_import_from_string.mock_calls)
 def test_perform_import_return_import_result_list_if_import_list_is_performed(
         self):
     returned = perform_import(["a", "b", "c"], "xyz")
     self.assertListEqual(returned, ["imported", "imported", "imported"])
 def test_perform_import_return_import_result_if_single_import_is_performed(
         self):
     returned = perform_import("abc", "xyz")
     self.assertEqual(returned, "imported")
 def test_perform_import_return_value_if_incorrect_val_passed(self):
     returned = perform_import(123, "xyz")
     self.assertEqual(returned, 123)
 def test_perform_import_return_none_if_value_is_none(self):
     returned = perform_import(None, "abc")
     self.assertIsNone(returned)