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from tests.helper import restricted_exec
SIMPLE_SUBSCRIPTS = """
def simple_subscript(a):
return a['b']
"""
def test_read_simple_subscript(mocker):
value = None
_getitem_ = mocker.stub()
_getitem_.side_effect = lambda ob, index: (ob, index)
glb = {'_getitem_': _getitem_}
restricted_exec(SIMPLE_SUBSCRIPTS, glb)
assert (value, 'b') == glb['simple_subscript'](value)
VAR_SUBSCRIPT = """
def simple_subscript(a, b):
return a[b]
"""
def test_read_subscript_with_variable(mocker):
value = [1]
idx = 0
_getitem_ = mocker.stub()
_getitem_.side_effect = lambda ob, index: (ob, index)
glb = {'_getitem_': _getitem_}
restricted_exec(VAR_SUBSCRIPT, glb)
assert (value, 0) == glb['simple_subscript'](value, idx)
TUPLE_SUBSCRIPTS = """
def tuple_subscript(a):
return a[1, 2]
"""
def test_tuple_subscript(mocker):
value = None
_getitem_ = mocker.stub()
_getitem_.side_effect = lambda ob, index: (ob, index)
glb = {'_getitem_': _getitem_}
restricted_exec(TUPLE_SUBSCRIPTS, glb)
assert (value, (1, 2)) == glb['tuple_subscript'](value)
SLICE_SUBSCRIPT_NO_UPPER_BOUND = """
def slice_subscript_no_upper_bound(a):
return a[1:]
"""
def test_read_slice_subscript_no_upper_bound(mocker):
value = None
_getitem_ = mocker.stub()
_getitem_.side_effect = lambda ob, index: (ob, index)
glb = {'_getitem_': _getitem_}
restricted_exec(SLICE_SUBSCRIPT_NO_UPPER_BOUND, glb)
assert (value, slice(1, None, None)) == glb['slice_subscript_no_upper_bound'](value) # NOQA: E501
SLICE_SUBSCRIPT_NO_LOWER_BOUND = """
def slice_subscript_no_lower_bound(a):
return a[:1]
"""
def test_read_slice_subscript_no_lower_bound(mocker):
value = None
_getitem_ = mocker.stub()
_getitem_.side_effect = lambda ob, index: (ob, index)
glb = {'_getitem_': _getitem_}
restricted_exec(SLICE_SUBSCRIPT_NO_LOWER_BOUND, glb)
assert (value, slice(None, 1, None)) == glb['slice_subscript_no_lower_bound'](value) # NOQA: E501
SLICE_SUBSCRIPT_NO_STEP = """
def slice_subscript_no_step(a):
return a[1:2]
"""
def test_read_slice_subscript_no_step(mocker):
value = None
_getitem_ = mocker.stub()
_getitem_.side_effect = lambda ob, index: (ob, index)
glb = {'_getitem_': _getitem_}
restricted_exec(SLICE_SUBSCRIPT_NO_STEP, glb)
assert (value, slice(1, 2, None)) == glb['slice_subscript_no_step'](value)
SLICE_SUBSCRIPT_WITH_STEP = """
def slice_subscript_with_step(a):
return a[1:2:3]
"""
def test_read_slice_subscript_with_step(mocker):
value = None
_getitem_ = mocker.stub()
_getitem_.side_effect = lambda ob, index: (ob, index)
glb = {'_getitem_': _getitem_}
restricted_exec(SLICE_SUBSCRIPT_WITH_STEP, glb)
assert (value, slice(1, 2, 3)) == glb['slice_subscript_with_step'](value)
EXTENDED_SLICE_SUBSCRIPT = """
def extended_slice_subscript(a):
return a[0, :1, 1:, 1:2, 1:2:3]
"""
def test_read_extended_slice_subscript(mocker):
value = None
_getitem_ = mocker.stub()
_getitem_.side_effect = lambda ob, index: (ob, index)
glb = {'_getitem_': _getitem_}
restricted_exec(EXTENDED_SLICE_SUBSCRIPT, glb)
ret = glb['extended_slice_subscript'](value)
ref = (
value,
(
0,
slice(None, 1, None),
slice(1, None, None),
slice(1, 2, None),
slice(1, 2, 3)
)
)
assert ref == ret
WRITE_SUBSCRIPTS = """
def assign_subscript(a):
a['b'] = 1
"""
def test_write_subscripts(
mocker):
value = {'b': None}
_write_ = mocker.stub()
_write_.side_effect = lambda ob: ob
glb = {'_write_': _write_}
restricted_exec(WRITE_SUBSCRIPTS, glb)
glb['assign_subscript'](value)
assert value['b'] == 1
DEL_SUBSCRIPT = """
def del_subscript(a):
del a['b']
"""
def test_del_subscripts(
mocker):
value = {'b': None}
_write_ = mocker.stub()
_write_.side_effect = lambda ob: ob
glb = {'_write_': _write_}
restricted_exec(DEL_SUBSCRIPT, glb)
glb['del_subscript'](value)
assert value == {}
|
