              assert exc_info.value.detail == expected_failure
  
      def test_outputs(self):
          for output_value, expected_output in get_items(self.outputs):
              assert self.field.to_representation(output_value) == expected_output
  
  
  # Boolean types...
  
  class TestBooleanField(FieldValues):
 
</s> remove             assert self.field.run_validation(input_value) == expected_output
 </s> add             assert self.field.run_validation(input_value) == expected_output, \
                'input value: {}'.format(repr(input_value)) </s> remove             assert exc_info.value.detail == expected_failure
 </s> add             assert exc_info.value.detail == expected_failure, \
                'input value: {}'.format(repr(input_value))
            assert self.field.to_representation(output_value) == expected_output, \
                'output value: {}'.format(repr(output_value))
              assert exc_info.value.detail == expected_failure
  
      def test_outputs(self):
          for output_value, expected_output in get_items(self.outputs):
            assert self.field.to_representation(output_value) == expected_output, \
                'output value: {}'.format(repr(output_value))
  
  
  # Boolean types...
  
  class TestBooleanField(FieldValues):
keep keep keep keep replace keep keep keep keep keep
 Add repr(value) to the assert msg in FieldValues 
tests/test_fields.py