def test_parse_parameter_list(self):
"""
( (type identifier) (',' type identifier)*)?
"""
tokens = (
Token('dummy', 'dummy'), # Dummy type
Token('identifier', 'foo'),
Token('symbol', ','),
Token('dummy', 'dummy'), # Dummy type
Token('identifier', 'bar'),
)
expected = Token('parameterList', [
Token('dummy', 'dummy'), # Dummy type
Token('identifier', 'foo'),
Token('symbol', ','),
Token('dummy', 'dummy'), # Dummy type
Token('identifier', 'bar'),
])
parser = Parser(tokens)
parser.parse_type = self._mock_parse(parser)
actual = parser.parse_parameter_list()
self.assertEqual(expected, actual)
def test_parse_subroutine_declaration(self):
"""
('constructor'|'function'|'method') ('void'|type) identifier '('parameterList ')' subroutineBody
"""
tokens = (
Token('keyword', 'method'),
Token('keyword', 'int'), # Dummy type
Token('identifier', 'foo'),
Token('symbol', '('),
Token('dummy', 'dummy'), # Dummy parameterList
Token('symbol', ')'),
Token('dummy', 'dummy'), # Dummy subroutineBody
)
expected = Token('subroutineDec', [
Token('keyword', 'method'),
Token('dummy', 'dummy'), # Dummy type
Token('identifier', 'foo'),
Token('symbol', '('),
Token('dummy', 'dummy'), # Dummy parameterList
Token('symbol', ')'),
Token('dummy', 'dummy'), # Dummy subroutineBody
])
parser = Parser(tokens)
parser.parse_type = self._mock_parse(parser)
parser.parse_parameter_list = self._mock_parse(parser)
parser.parse_subroutine_body = self._mock_parse(parser)
actual = parser.parse_subroutine_declaration()
self.assertEqual(expected, actual)
def test_parse_parameter_list_empty(self):
"""
( (type identifier) (',' type identifier)*)?
"""
tokens = (Token('symbol',')'), )
expected = Token('parameterList', [])
parser = Parser(tokens)
parser.parse_type = self._mock_parse(parser)
actual = parser.parse_parameter_list()
self.assertEqual(expected, actual)