ladybird/Tests/Kernel/TestMunMap.cpp
Andreas Kling bccdc08487 Kernel: Unmapping a non-mapped region with munmap() should be a no-op
Not a regression per se from 0fcb9efd86
since we were crashing before that which is obviously worse.
2021-07-30 13:16:55 +02:00

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/*
* Copyright (c) 2021, Brian Gianforcaro <bgianf@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibTest/TestCase.h>
#include <errno.h>
#include <sys/mman.h>
TEST_CASE(munmap_zero_page)
{
// munmap of the unmapped zero page should always "succeed".
auto res = munmap(0x0, 0xF);
EXPECT_EQ(res, 0);
}