def test_given_a_parser_and_document_when_request_parsed_then_parser_called(self):
parser = Mock()
document = Mock()
request = Mock()
content = parser.parse.return_value
proxy = DocumentProxy(parser, document)
result = proxy.parse(request, 'action')
assert_that(result, equal_to(content))
parser.parse.assert_called_once_with(request, document, 'action')
