security_unittest.cc | Explore in Territory

// Copyright 2013 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include <fcntl.h>
#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#include <sys/types.h>

#include <algorithm>
#include <limits>
#include <memory>

#include "base/files/file_util.h"
#include "base/memory/free_deleter.h"
#include "base/sanitizer_buildflags.h"
#include "build/build_config.h"
#include "partition_alloc/buildflags.h"
#include "testing/gtest/include/gtest/gtest.h"

#if BUILDFLAG(IS_POSIX)
#include <sys/mman.h>
#include <unistd.h>
#endif

nothrow;
numeric_limits;

namespace {

// This function acts as a compiler optimization barrier. We use it to
// prevent the compiler from making an expression a compile-time constant.
// We also use it so that the compiler doesn't discard certain return values
// as something we don't need (see the comment with calloc below).
template <typename Type>
NOINLINE Type HideValueFromCompiler(Type value) { … }

// There are platforms where these tests are known to fail. We would like to
// be able to easily check the status on the bots, but marking tests as
// FAILS_ is too clunky.
void OverflowTestsSoftExpectTrue(bool overflow_detected) { … }

#if BUILDFLAG(IS_APPLE) || defined(ADDRESS_SANITIZER) ||      \
    defined(THREAD_SANITIZER) || defined(MEMORY_SANITIZER) || \
    BUILDFLAG(IS_HWASAN) || PA_BUILDFLAG(USE_PARTITION_ALLOC_AS_MALLOC)
#define MAYBE_NewOverflow …
#else
#define MAYBE_NewOverflow …
#endif
// Test that array[TooBig][X] and array[X][TooBig] allocations fail and not
// succeed with the wrong size allocation in case of size_t overflow.  This
// test is disabled on environments that operator new (nothrow) crashes in
// case of size_t overflow.
//
// - iOS doesn't honor nothrow.
// - XSan aborts when operator new returns nullptr.
// - PartitionAlloc crashes by design when size_t overflows.
//
// TODO(crbug.com/40611888): Fix the test on Mac.
TEST(SecurityTest, MAYBE_NewOverflow) { … }

}  // namespace
chromium/base/security_unittest.cc
