Module rsyscall.tests.test_pointer

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from rsyscall.tests.trio_test_case import TrioTestCase
from rsyscall import local_thread
from rsyscall.handle.pointer import UseAfterFreeError

class TestPointer(TrioTestCase):
    async def asyncSetUp(self) -> None:
        self.thr = local_thread

    async def test_use_after_free_ptr(self) -> None:
        buf = await self.thr.malloc(bytes, 16)
        buf.free()
        with self.assertRaises(UseAfterFreeError):
            buf.near
        str(buf)

    async def test_use_after_free_allocation(self) -> None:
        buf = await self.thr.malloc(bytes, 16)
        buf.allocation.free()
        with self.assertRaises(UseAfterFreeError):
            buf.near
        buf = await self.thr.ptr(b'foo')
        buf.allocation.free()
        with self.assertRaises(UseAfterFreeError):
            buf.near
        str(buf)

Classes

class TestPointer (methodName='runTest')

A trio-enabled variant of unittest.TestCase

Create an instance of the class that will use the named test method when executed. Raises a ValueError if the instance does not have a method with the specified name.

Expand source code Browse git 
class TestPointer(TrioTestCase):
    async def asyncSetUp(self) -> None:
        self.thr = local_thread

    async def test_use_after_free_ptr(self) -> None:
        buf = await self.thr.malloc(bytes, 16)
        buf.free()
        with self.assertRaises(UseAfterFreeError):
            buf.near
        str(buf)

    async def test_use_after_free_allocation(self) -> None:
        buf = await self.thr.malloc(bytes, 16)
        buf.allocation.free()
        with self.assertRaises(UseAfterFreeError):
            buf.near
        buf = await self.thr.ptr(b'foo')
        buf.allocation.free()
        with self.assertRaises(UseAfterFreeError):
            buf.near
        str(buf)

Ancestors

Class variables

var nursery : trio.Nursery

Methods

async def test_use_after_free_ptr(self) ‑> NoneType
Expand source code Browse git 
async def test_use_after_free_ptr(self) -> None:
    buf = await self.thr.malloc(bytes, 16)
    buf.free()
    with self.assertRaises(UseAfterFreeError):
        buf.near
    str(buf)
async def test_use_after_free_allocation(self) ‑> NoneType
Expand source code Browse git 
async def test_use_after_free_allocation(self) -> None:
    buf = await self.thr.malloc(bytes, 16)
    buf.allocation.free()
    with self.assertRaises(UseAfterFreeError):
        buf.near
    buf = await self.thr.ptr(b'foo')
    buf.allocation.free()
    with self.assertRaises(UseAfterFreeError):
        buf.near
    str(buf)

Inherited members