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import string
import unittest
from ..util import PseudoStr, StrProxy, Object
from .. import tool_imports_for_tests
with tool_imports_for_tests():
from c_analyzer.common.info import (
UNKNOWN,
ID,
)
class IDTests(unittest.TestCase):
VALID_ARGS = (
'x/y/z/spam.c',
'func',
'eggs',
)
VALID_KWARGS = dict(zip(ID._fields, VALID_ARGS))
VALID_EXPECTED = VALID_ARGS
def test_from_raw(self):
tests = [
('', None),
(None, None),
('spam', (None, None, 'spam')),
(('spam',), (None, None, 'spam')),
(('x/y/z/spam.c', 'spam'), ('x/y/z/spam.c', None, 'spam')),
(self.VALID_ARGS, self.VALID_EXPECTED),
(self.VALID_KWARGS, self.VALID_EXPECTED),
]
for raw, expected in tests:
with self.subTest(raw):
id = ID.from_raw(raw)
self.assertEqual(id, expected)
def test_minimal(self):
id = ID(
filename=None,
funcname=None,
name='eggs',
)
self.assertEqual(id, (
None,
None,
'eggs',
))
def test_init_typical_global(self):
id = ID(
filename='x/y/z/spam.c',
funcname=None,
name='eggs',
)
self.assertEqual(id, (
'x/y/z/spam.c',
None,
'eggs',
))
def test_init_typical_local(self):
id = ID(
filename='x/y/z/spam.c',
funcname='func',
name='eggs',
)
self.assertEqual(id, (
'x/y/z/spam.c',
'func',
'eggs',
))
def test_init_all_missing(self):
for value in ('', None):
with self.subTest(repr(value)):
id = ID(
filename=value,
funcname=value,
name=value,
)
self.assertEqual(id, (
None,
None,
None,
))
def test_init_all_coerced(self):
tests = [
('str subclass',
dict(
filename=PseudoStr('x/y/z/spam.c'),
funcname=PseudoStr('func'),
name=PseudoStr('eggs'),
),
('x/y/z/spam.c',
'func',
'eggs',
)),
('non-str',
dict(
filename=StrProxy('x/y/z/spam.c'),
funcname=Object(),
name=('a', 'b', 'c'),
),
('x/y/z/spam.c',
'<object>',
"('a', 'b', 'c')",
)),
]
for summary, kwargs, expected in tests:
with self.subTest(summary):
id = ID(**kwargs)
for field in ID._fields:
value = getattr(id, field)
self.assertIs(type(value), str)
self.assertEqual(tuple(id), expected)
def test_iterable(self):
id = ID(**self.VALID_KWARGS)
filename, funcname, name = id
values = (filename, funcname, name)
for value, expected in zip(values, self.VALID_EXPECTED):
self.assertEqual(value, expected)
def test_fields(self):
id = ID('a', 'b', 'z')
self.assertEqual(id.filename, 'a')
self.assertEqual(id.funcname, 'b')
self.assertEqual(id.name, 'z')
def test_validate_typical(self):
id = ID(
filename='x/y/z/spam.c',
funcname='func',
name='eggs',
)
id.validate() # This does not fail.
def test_validate_missing_field(self):
for field in ID._fields:
with self.subTest(field):
id = ID(**self.VALID_KWARGS)
id = id._replace(**{field: None})
if field == 'funcname':
id.validate() # The field can be missing (not set).
id = id._replace(filename=None)
id.validate() # Both fields can be missing (not set).
continue
with self.assertRaises(TypeError):
id.validate()
def test_validate_bad_field(self):
badch = tuple(c for c in string.punctuation + string.digits)
notnames = (
'1a',
'a.b',
'a-b',
'&a',
'a++',
) + badch
tests = [
('filename', ()), # Any non-empty str is okay.
('funcname', notnames),
('name', notnames),
]
seen = set()
for field, invalid in tests:
for value in invalid:
seen.add(value)
with self.subTest(f'{field}={value!r}'):
id = ID(**self.VALID_KWARGS)
id = id._replace(**{field: value})
with self.assertRaises(ValueError):
id.validate()
for field, invalid in tests:
valid = seen - set(invalid)
for value in valid:
with self.subTest(f'{field}={value!r}'):
id = ID(**self.VALID_KWARGS)
id = id._replace(**{field: value})
id.validate() # This does not fail.
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