platform_system_core/libutils/SharedBuffer_test.cpp
Elliott Hughes f2f016e741 Fix SharedBuffer tests to pass under hwasan.
Allocating the entire address space is sufficiently unreasonable that
hwasan blows you out of the water if you try to do that. Half the
address space feels like it's large enough to be guaranteed to fail
(which is all I think this intended to test) without being quite so
obviously incorrect that tools like hwasan are going to object...

...except hwasan actually has a 2GiB limit. So let's keep the cleanup,
but also just disable these tests if they're running under hwasan for
now.

Bug: https://issuetracker.google.com/171054277
Test: treehugger
Change-Id: I41f3def5c3a43aa7f9ca3a130b4306ebed659d6a
2020-10-19 16:51:58 -07:00

67 lines
2.2 KiB
C++

/*
* Copyright (C) 2015 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#define __STDC_LIMIT_MACROS
#include <gtest/gtest.h>
#include <memory>
#include <stdint.h>
#include "SharedBuffer.h"
extern "C" void __hwasan_init() __attribute__((weak));
#define SKIP_WITH_HWASAN \
if (&__hwasan_init != 0) GTEST_SKIP()
TEST(SharedBufferTest, alloc_death) {
EXPECT_DEATH(android::SharedBuffer::alloc(SIZE_MAX), "");
EXPECT_DEATH(android::SharedBuffer::alloc(SIZE_MAX - sizeof(android::SharedBuffer)), "");
}
TEST(SharedBufferTest, alloc_null) {
// Big enough to fail, not big enough to abort.
SKIP_WITH_HWASAN; // hwasan has a 2GiB allocation limit.
ASSERT_EQ(nullptr, android::SharedBuffer::alloc(SIZE_MAX / 2));
}
TEST(SharedBufferTest, alloc_zero_size) {
android::SharedBuffer* buf = android::SharedBuffer::alloc(0);
ASSERT_NE(nullptr, buf);
ASSERT_EQ(0U, buf->size());
buf->release();
}
TEST(SharedBufferTest, editResize_death) {
android::SharedBuffer* buf = android::SharedBuffer::alloc(10);
EXPECT_DEATH(buf->editResize(SIZE_MAX - sizeof(android::SharedBuffer)), "");
buf = android::SharedBuffer::alloc(10);
EXPECT_DEATH(buf->editResize(SIZE_MAX), "");
}
TEST(SharedBufferTest, editResize_null) {
// Big enough to fail, not big enough to abort.
SKIP_WITH_HWASAN; // hwasan has a 2GiB allocation limit.
android::SharedBuffer* buf = android::SharedBuffer::alloc(10);
ASSERT_EQ(nullptr, buf->editResize(SIZE_MAX / 2));
}
TEST(SharedBufferTest, editResize_zero_size) {
android::SharedBuffer* buf = android::SharedBuffer::alloc(10);
buf = buf->editResize(0);
ASSERT_EQ(0U, buf->size());
buf->release();
}