/usr/lib/python3/dist-packages/positional/tests/test_positional.py is in python3-positional 1.1.1-3.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 | # Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import inspect
import warnings
import testtools
from positional import positional
class TestPositional(testtools.TestCase):
@positional(1)
def no_vars(self):
# positional doesn't enforce anything here
return True
@positional(3, positional.EXCEPT)
def mixed_except(self, arg, kwarg1=None, kwarg2=None):
# self, arg, and kwarg1 may be passed positionally
return (arg, kwarg1, kwarg2)
@positional(3, positional.WARN)
def mixed_warn(self, arg, kwarg1=None, kwarg2=None):
# self, arg, and kwarg1 may be passed positionally, only a warning
# is emitted
return (arg, kwarg1, kwarg2)
def test_nothing(self):
self.assertTrue(self.no_vars())
def test_mixed_except(self):
self.assertEqual((1, 2, 3), self.mixed_except(1, 2, kwarg2=3))
self.assertEqual((1, 2, 3), self.mixed_except(1, kwarg1=2, kwarg2=3))
self.assertEqual((1, None, None), self.mixed_except(1))
self.assertRaises(TypeError, self.mixed_except, 1, 2, 3)
def test_mixed_warn(self):
with warnings.catch_warnings(record=True) as w:
warnings.simplefilter("always")
self.mixed_warn(1, 2, 3)
self.assertEqual(1, len(w))
self.assertTrue(issubclass(w[0].category, DeprecationWarning))
self.assertIn('takes at most 3 positional', str(w[0].message))
@positional(enforcement=positional.EXCEPT)
def inspect_func(self, arg, kwarg=None):
return (arg, kwarg)
def test_inspect_positions(self):
self.assertEqual((1, None), self.inspect_func(1))
self.assertEqual((1, 2), self.inspect_func(1, kwarg=2))
self.assertRaises(TypeError, self.inspect_func)
self.assertRaises(TypeError, self.inspect_func, 1, 2)
@positional.classmethod(1)
def class_method(cls, a, b):
return (cls, a, b)
@positional.method(1)
def normal_method(self, a, b):
self.assertIsInstance(self, TestPositional)
return (self, a, b)
def test_class_method(self):
self.assertEqual((TestPositional, 1, 2), self.class_method(1, b=2))
self.assertRaises(TypeError, self.class_method, 1, 2)
def test_normal_method(self):
self.assertEqual((self, 1, 2), self.normal_method(1, b=2))
self.assertRaises(TypeError, self.normal_method, 1, 2)
def test_argspec_preserved(self):
@positional()
def f_wrapped(my_arg=False):
return my_arg
def f_not_wrapped(my_arg=False):
return my_arg
self.assertEqual(inspect.getargspec(f_not_wrapped),
inspect.getargspec(f_wrapped))
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