def run(source_code):
"""Run the source code.
:param source_code: code to run
:type source_code: :class:`str`
"""
eval_(parse(lex(source_code)), Context(apply_stencil))
def assert_lex_token_list(code, expected_token_tuples):
stream = lex(code)
# For some reason, pytest always says there is a diff at index 0, even when
# it occurs elsewhere in the list. Falling back to asserting in a loop.
# expected_tokens = [
# Token(name, value) for name, value in expected_token_tuples]
# assert list(lex(code)) == expected_tokens
for name, value in expected_token_tuples:
computed_token = next(stream)
expected_token = Token(name, value)
assert computed_token == expected_token
with raises(StopIteration):
next(stream)
def test_empty_file_name(self):
stream = lex('""')
with raises(LexingError):
next(stream)
def test_unclosed_file_name(self):
stream = lex('"')
with raises(LexingError):
next(stream)
def test_invalid_continues_to_raise_lexing_errors(self):
stream = lex('ABCD')
for _ in xrange(5):
with raises(LexingError):
next(stream)
def test_invalid_next_instruction(self):
stream = lex('STO 1 123.3\nawesome')
for _ in xrange(3):
next(stream)
with raises(LexingError):
next(stream)
def test_invalid_sto(self):
stream = lex('STO 1 hello')
for _ in xrange(2):
next(stream)
with raises(LexingError):
next(stream)
def test_invalid_token(self):
stream = lex('ABCD')
with raises(LexingError):
next(stream)
def test_nothing(self):
stream = lex('')
with raises(StopIteration):
next(stream)