54 lines
1.4 KiB
C++
54 lines
1.4 KiB
C++
|
// Copyright 2018 Google LLC
|
||
|
//
|
||
|
// 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.
|
||
|
|
||
|
#include <sys/mman.h>
|
||
|
|
||
|
#include "gtest/gtest.h"
|
||
|
#include "test/util/test_util.h"
|
||
|
|
||
|
namespace gvisor {
|
||
|
namespace testing {
|
||
|
|
||
|
namespace {
|
||
|
|
||
|
class MunmapTest : public ::testing::Test {
|
||
|
protected:
|
||
|
void SetUp() override {
|
||
|
m_ = mmap(nullptr, kPageSize, PROT_READ | PROT_WRITE,
|
||
|
MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
|
||
|
ASSERT_NE(MAP_FAILED, m_);
|
||
|
}
|
||
|
|
||
|
void* m_ = nullptr;
|
||
|
};
|
||
|
|
||
|
TEST_F(MunmapTest, HappyCase) {
|
||
|
EXPECT_THAT(munmap(m_, kPageSize), SyscallSucceeds());
|
||
|
}
|
||
|
|
||
|
TEST_F(MunmapTest, ZeroLength) {
|
||
|
EXPECT_THAT(munmap(m_, 0), SyscallFailsWithErrno(EINVAL));
|
||
|
}
|
||
|
|
||
|
TEST_F(MunmapTest, LastPageRoundUp) {
|
||
|
// Attempt to unmap up to and including the last page.
|
||
|
EXPECT_THAT(munmap(m_, static_cast<size_t>(-kPageSize + 1)),
|
||
|
SyscallFailsWithErrno(EINVAL));
|
||
|
}
|
||
|
|
||
|
} // namespace
|
||
|
|
||
|
} // namespace testing
|
||
|
} // namespace gvisor
|