text: from spotlight import errors as err
  from spotlight.tests.validator_test import ValidatorTest
  
  
  class AlphaNumSpaceTest(ValidatorTest):
      def test_alpha_num_space_rule_with_invalid_values_expect_errors(self):
          rules = {
              "field1": "alpha_num_space",
              "field2": "alpha_num_space",
              "field3": "alpha_num_space",
              "field4": "alpha_num_space",
          }
          input_values = {
              "field1": "!@#$%^&*",
              "field2": "alpha-123",
              "field3": "alpha_123",
              "field4": 1
          }
  
          errors = self.validator.validate(input_values, rules)
  
          self.assertEqual(len(errors.items()), 4)
          for field, errs in errors.items():
              expected = err.ALPHA_NUM_SPACE_ERROR.format(field=field)
              self.assertEqual(errs[0], expected)
  
      def test_alpha_num_space_rule_with_valid_values_expect_no_errors(self):
          rules = {
              "field1": "alpha_num_space",
              "field2": "alpha_num_space",
              "field3": "alpha_num_space"
          }
          input_values = {
              "field1": "test",
              "field2": "1",
              "field3": "alpha 123"
          }
          expected = None
  
          errors = self.validator.validate(input_values, rules)
  
          self.assertEqual(len(errors.items()), 0)
          for field, errs in errors.items():
              self.assertEqual(errs, expected)
  