def test_stubs_constructors(self):
with no_builtin_verification():
user = object()
allow(User).__new__.and_return(user)
assert User('Alice', 25) is user
def test_restores_constructor_on_teardown(self):
user = object()
allow(User).__new__.and_return(user)
teardown()
result = User('Alice', 25)
assert result is not user
assert result.name == 'Alice'
def test_allows_stubs_on_existing_static_methods(self):
User = ClassDouble('doubles.testing.User')
allow(User).static_method
assert User.static_method('arg') is None
def test_allows_stubs_on_existing_static_methods(self):
User = ClassDouble('doubles.testing.User')
allow(User).static_method
assert User.static_method('arg') is None
import re
from pytest import raises, mark
from doubles.exceptions import VerifyingDoubleArgumentError, VerifyingDoubleError
from doubles.object_double import ObjectDouble
from doubles.targets.allowance_target import allow
from doubles.testing import User, OldStyleUser
user = User('Alice', 25)
old_style_user = OldStyleUser('Alice', 25)
@mark.parametrize('test_object', [user, old_style_user])
class TestRepr(object):
def test_displays_correct_class_name(self, test_object):
subject = ObjectDouble(test_object)
assert re.match(
r"<ObjectDouble of <doubles.testing.(?:OldStyle)?User "
r"(?:instance|object) at 0x[0-9a-f]+> object "
r"at 0x[0-9a-f]+>", repr(subject))
@mark.parametrize('test_object', [user, old_style_user])
class TestObjectDouble(object):
def test_allows_stubs_on_existing_methods(self, test_object):
doubled_user = ObjectDouble(test_object)
allow(doubled_user).get_name.and_return('Bob')