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import types
from RestrictedPython.Guards import guarded_iter_unpack_sequence
from tests.helper import restricted_exec
ITERATORS = """
def for_loop(it):
c = 0
for a in it:
c = c + a
return c
def nested_for_loop(it1, it2):
c = 0
for a in it1:
for b in it2:
c = c + a + b
return c
def dict_comp(it):
return {a: a + a for a in it}
def list_comp(it):
return [a + a for a in it]
def nested_list_comp(it1, it2):
return [a + b for a in it1 if a > 1 for b in it2]
def set_comp(it):
return {a + a for a in it}
def generator(it):
return (a + a for a in it)
def nested_generator(it1, it2):
return (a+b for a in it1 if a > 0 for b in it2)
"""
def test_RestrictingNodeTransformer__guard_iter__1(mocker):
it = (1, 2, 3)
_getiter_ = mocker.stub()
_getiter_.side_effect = lambda x: x
glb = {'_getiter_': _getiter_}
restricted_exec(ITERATORS, glb)
ret = glb['for_loop'](it)
assert 6 == ret
_getiter_.assert_called_once_with(it)
_getiter_.reset_mock()
ret = glb['nested_for_loop']((1, 2), (3, 4))
assert 20 == ret
_getiter_.assert_has_calls([
mocker.call((1, 2)),
mocker.call((3, 4))
])
_getiter_.reset_mock()
ret = glb['dict_comp'](it)
assert {1: 2, 2: 4, 3: 6} == ret
_getiter_.assert_called_once_with(it)
_getiter_.reset_mock()
ret = glb['list_comp'](it)
assert [2, 4, 6] == ret
_getiter_.assert_called_once_with(it)
_getiter_.reset_mock()
ret = glb['nested_list_comp']((1, 2), (3, 4))
assert [5, 6] == ret
_getiter_.assert_has_calls([
mocker.call((1, 2)),
mocker.call((3, 4))
])
_getiter_.reset_mock()
ret = glb['set_comp'](it)
assert {2, 4, 6} == ret
_getiter_.assert_called_once_with(it)
_getiter_.reset_mock()
ret = glb['generator'](it)
assert isinstance(ret, types.GeneratorType)
assert list(ret) == [2, 4, 6]
_getiter_.assert_called_once_with(it)
_getiter_.reset_mock()
ret = glb['nested_generator']((0, 1, 2), (1, 2))
assert isinstance(ret, types.GeneratorType)
assert list(ret) == [2, 3, 3, 4]
_getiter_.assert_has_calls([
mocker.call((0, 1, 2)),
mocker.call((1, 2)),
mocker.call((1, 2))])
_getiter_.reset_mock()
ITERATORS_WITH_UNPACK_SEQUENCE = """
def for_loop(it):
c = 0
for (a, b) in it:
c = c + a + b
return c
def dict_comp(it):
return {a: a + b for (a, b) in it}
def list_comp(it):
return [a + b for (a, b) in it]
def set_comp(it):
return {a + b for (a, b) in it}
def generator(it):
return (a + b for (a, b) in it)
"""
def test_RestrictingNodeTransformer__guard_iter__2(mocker):
it = ((1, 2), (3, 4), (5, 6))
call_ref = [
mocker.call(it),
mocker.call(it[0]),
mocker.call(it[1]),
mocker.call(it[2])
]
_getiter_ = mocker.stub()
_getiter_.side_effect = lambda x: x
glb = {
'_getiter_': _getiter_,
'_iter_unpack_sequence_': guarded_iter_unpack_sequence
}
restricted_exec(ITERATORS_WITH_UNPACK_SEQUENCE, glb)
ret = glb['for_loop'](it)
assert ret == 21
_getiter_.assert_has_calls(call_ref)
_getiter_.reset_mock()
ret = glb['dict_comp'](it)
assert ret == {1: 3, 3: 7, 5: 11}
_getiter_.assert_has_calls(call_ref)
_getiter_.reset_mock()
ret = glb['list_comp'](it)
assert ret == [3, 7, 11]
_getiter_.assert_has_calls(call_ref)
_getiter_.reset_mock()
ret = glb['set_comp'](it)
assert ret == {3, 7, 11}
_getiter_.assert_has_calls(call_ref)
_getiter_.reset_mock()
ret = list(glb['generator'](it))
assert ret == [3, 7, 11]
_getiter_.assert_has_calls(call_ref)
_getiter_.reset_mock()
|
