def test_backtraces(self):
el = ErrorLogger()
expected_output = '''\
a shorter backtrace [b.mwel: line 2, column 5; via line 3, column 5]
a long backtrace [a.mwel: line 1, column 4; via b.mwel: line 2, column 5; via line 3, column 6]
no backtrace [line 4, column 6]
another backtrace to a file [a.mwel: line 1, column 3; via b.mwel: line 2, column 4]
backtrace to a file [a.mwel: line 1, column 3; via b.mwel: line 3, column 4]
'''
el('backtrace to a file',
lineno = (1, 3),
colno = (3, 4),
filename = ('a.mwel', 'b.mwel'))
el('no backtrace', lineno=4, colno=6)
el('a long backtrace',
lineno = (1, 2, 3),
colno = (4, 5, 6),
filename = ('a.mwel', 'b.mwel', ''))
el('a shorter backtrace',
lineno = (2, 3),
colno = (5, 5),
filename = ('b.mwel', ''))
el('another backtrace to a file',
lineno = (1, 2),
colno = (3, 4),
filename = ('a.mwel', 'b.mwel'))
file = io.StringIO()
el.print_errors(file)
self.assertEqual(expected_output, file.getvalue())
def test_basic(self):
el = ErrorLogger()
expected_output = '''\
negative lineno, no colno
zero lineno, no colno
positive lineno, negative colno
positive lineno, zero colno
positive lineno, positive colno [line 1, column 1]
positive lineno, no colno
positive lineno, positive colno [line 15, column 9]
positive lineno, positive colno [line 20, column 8]
positive lineno, positive colno [line 20, column 10]
no lineno, no colno
'''
el('no lineno, no colno', token='?')
el('negative lineno, no colno', lineno=-1)
el('zero lineno, no colno', lineno=0)
el('positive lineno, no colno', lineno=1)
el('positive lineno, negative colno', lineno=1, colno=-1)
el('positive lineno, zero colno', lineno=1, colno=0)
el('positive lineno, positive colno', lineno=1, colno=1)
el('positive lineno, positive colno', lineno=20, colno=10)
el('positive lineno, positive colno', lineno=15, colno=9)
el('positive lineno, positive colno', lineno=20, colno=8)
file = io.StringIO()
el.print_errors(file)
self.assertEqual(expected_output, file.getvalue())
class ErrorLoggerMixin(object):
def setUp(self):
super(ErrorLoggerMixin, self).setUp()
self.error_logger = ErrorLogger()
def with_error_check(self, func):
@contextmanager
def func_wrapper(*args, **kwargs):
yield func(*args, **kwargs)
self.assertNoErrors()
return func_wrapper
def assertNoErrors(self):
if self.error_logger.errors:
msg = io.StringIO()
msg.write('input contained unexpected errors:\n')
self.error_logger.print_errors(msg)
self.fail(msg.getvalue())
def assertError(self,
msg=None,
token=None,
lineno=None,
colno=None,
filename=''):
if not self.error_logger.errors:
self.fail('expected error was not detected')
e = self.error_logger.errors.popleft()
self.assertEqual(5, len(e))
if msg:
self.assertEqual(msg, e.msg)
elif token:
self.assertEqual('Invalid syntax at %r' % str(token), e.msg)
if token:
self.assertEqual(token, e.token)
if lineno is not None:
self.assertEqual(lineno, e.lineno)
if colno is not None:
self.assertEqual(colno, e.colno)
self.assertEqual(filename, e.filename)
class ErrorLoggerMixin(object):
def setUp(self):
super(ErrorLoggerMixin, self).setUp()
self.error_logger = ErrorLogger()
def with_error_check(self, func):
@contextmanager
def func_wrapper(*args, **kwargs):
yield func(*args, **kwargs)
self.assertNoErrors()
return func_wrapper
def assertNoErrors(self):
if self.error_logger.errors:
msg = io.StringIO()
msg.write('input contained unexpected errors:\n')
self.error_logger.print_errors(msg)
self.fail(msg.getvalue())
def assertError(self, msg=None, token=None, lineno=None, colno=None,
filename=''):
if not self.error_logger.errors:
self.fail('expected error was not detected')
e = self.error_logger.errors.popleft()
self.assertEqual(5, len(e))
if msg:
self.assertEqual(msg, e.msg)
elif token:
self.assertEqual('Invalid syntax at %r' % str(token), e.msg)
if token:
self.assertEqual(token, e.token)
if lineno is not None:
self.assertEqual(lineno, e.lineno)
if colno is not None:
self.assertEqual(colno, e.colno)
self.assertEqual(filename, e.filename)
def test_filenames(self):
el = ErrorLogger()
expected_output = '''\
no file 1 [line 1, column 1]
no file 2 [line 2, column 2]
no file 3 [line 8, column 8]
file1 1 [file1.mwel: line 5, column 5]
file1 2 [file1.mwel: line 6, column 6]
file1 3 [file1.mwel]
another file [another_file: line 100, column 100]
file2 1 [file2: line 3, column 3]
file2 2 [file2: line 4, column 4]
file2 3 [file2: line 7, column 7]
'''
el('no file 1', lineno=1, colno=1)
el('no file 2', lineno=2, colno=2)
with el.filename('dir1/file2'):
el('file2 1', lineno=3, colno=3)
el('file2 2', lineno=4, colno=4)
with el.filename('/dir2/dir3/file1.mwel'):
el('file1 1', lineno=5, colno=5)
el('file1 2', lineno=6, colno=6)
el('another file', lineno=100, colno=100,
filename='another_file')
el('file1 3')
self.assertEqual('/dir2/dir3/file1.mwel', el.current_filename)
el('file2 3', lineno=7, colno=7)
self.assertEqual('dir1/file2', el.current_filename)
el('no file 3', lineno=8, colno=8)
self.assertEqual('', el.current_filename)
file = io.StringIO()
el.print_errors(file)
self.assertEqual(expected_output, file.getvalue())
def setUp(self):
super(ErrorLoggerMixin, self).setUp()
self.error_logger = ErrorLogger()
def setUp(self):
super(ErrorLoggerMixin, self).setUp()
self.error_logger = ErrorLogger()