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test_cpython_patches.py
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test_cpython_patches.py
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## #!/usr/bin/env python
# -*- coding: utf-8 -*-
# <sure - utility belt for automated testing in python>
# Copyright (C) <2010-2017> Gabriel Falcão <gabriel@nacaolivre.org>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
from __future__ import unicode_literals
import sure
from sure import expect
from sure.magic import is_cpython
if is_cpython:
if sure.allows_new_syntax:
def test_it_works_with_objects():
("anything that inherits from object should be patched")
(4).should.equal(2 + 2)
"foo".should.equal("f" + ("o" * 2))
{}.should.be.empty
def test_shouldnt_overwrite_class_attributes():
"""do not patch already existing class attributes with same name"""
class Foo(object):
when = 42
shouldnt = 43
bar = 'bar'
Foo.when.should.be.equal(42)
Foo.shouldnt.should.be.equal(43)
Foo.bar.should.be.equal('bar')
Foo.__dict__.should.contain('when')
Foo.__dict__.should.contain('shouldnt')
Foo.__dict__.should.contain('bar')
dir(Foo).should.contain('when')
dir(Foo).should.contain('shouldnt')
dir(Foo).should.contain('bar')
dir(Foo).shouldnt.contain('should')
def test_shouldnt_overwrite_instance_attributes():
"""do not patch already existing instance attributes with same name"""
class Foo(object):
def __init__(self, when, shouldnt, bar):
self.when = when
self.shouldnt = shouldnt
self.bar = bar
f = Foo(42, 43, 'bar')
f.when.should.be.equal(42)
f.shouldnt.should.be.equal(43)
f.bar.should.be.equal('bar')
f.__dict__.should.contain('when')
f.__dict__.should.contain('shouldnt')
f.__dict__.should.contain('bar')
dir(f).should.contain('when')
dir(f).should.contain('shouldnt')
dir(f).should.contain('bar')
dir(f).shouldnt.contain('should')
def test_dir_conceals_sure_specific_attributes():
("dir(obj) should conceal names of methods that were grafted by sure")
x = 123
expect(set(dir(x)).intersection(set(sure.POSITIVES))).to.be.empty
expect(set(dir(x)).intersection(set(sure.NEGATIVES))).to.be.empty
# TODO
# def test_it_works_with_non_objects():
# ("anything that inherits from non-object should also be patched")
# class Foo:
# pass
# f = Foo()
# f.should.be.a(Foo)
# def test_can_override_properties():
# x =1
# x.should = 2
# assert x.should == 2