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import unittest2 as unittest
import doctest
import sys
import funcsigs as inspect
class TestFunctionSignatures(unittest.TestCase):
@staticmethod
def signature(func):
sig = inspect.signature(func)
return (tuple((param.name,
(Ellipsis if param.default is param.empty else param.default),
(Ellipsis if param.annotation is param.empty
else param.annotation),
str(param.kind).lower())
for param in sig.parameters.values()),
(Ellipsis if sig.return_annotation is sig.empty
else sig.return_annotation))
def test_zero_arguments(self):
def test():
pass
self.assertEqual(self.signature(test),
((), Ellipsis))
def test_single_positional_argument(self):
def test(a):
pass
self.assertEqual(self.signature(test),
(((('a', Ellipsis, Ellipsis, "positional_or_keyword")),), Ellipsis))
def test_single_keyword_argument(self):
def test(a=None):
pass
self.assertEqual(self.signature(test),
(((('a', None, Ellipsis, "positional_or_keyword")),), Ellipsis))
def test_var_args(self):
def test(*args):
pass
self.assertEqual(self.signature(test),
(((('args', Ellipsis, Ellipsis, "var_positional")),), Ellipsis))
def test_keywords_args(self):
def test(**kwargs):
pass
self.assertEqual(self.signature(test),
(((('kwargs', Ellipsis, Ellipsis, "var_keyword")),), Ellipsis))
def test_multiple_arguments(self):
def test(a, b=None, *args, **kwargs):
pass
self.assertEqual(self.signature(test), ((
('a', Ellipsis, Ellipsis, "positional_or_keyword"),
('b', None, Ellipsis, "positional_or_keyword"),
('args', Ellipsis, Ellipsis, "var_positional"),
('kwargs', Ellipsis, Ellipsis, "var_keyword"),
), Ellipsis))
def test_has_version(self):
self.assertTrue(inspect.__version__)
def test_readme(self):
# XXX: This fails but doesn't fail the build.
# (and the syntax isn't valid on all pythons so that seems a little
# hard to get right.
doctest.testfile('../README.rst')
def test_unbound_method(self):
self_kind = "positional_or_keyword"
class Test(object):
def method(self):
pass
def method_with_args(self, a):
pass
def method_with_varargs(*args):
pass
self.assertEqual(
self.signature(Test.method),
(((('self', Ellipsis, Ellipsis, self_kind)),), Ellipsis))
self.assertEqual(
self.signature(Test.method_with_args),
((('self', Ellipsis, Ellipsis, self_kind),
('a', Ellipsis, Ellipsis, "positional_or_keyword"),
), Ellipsis))
self.assertEqual(
self.signature(Test.method_with_varargs),
((('args', Ellipsis, Ellipsis, "var_positional"),), Ellipsis))
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