/*
 * Copyright (C) 2024 HiHope Open Source Organization.
 * 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 <cerrno>
#include <cstdio>
#include <cstdlib>
#include <string>
#include <vector>
#include <fcntl.h>
#include <unistd.h>
#include <gtest/gtest.h>
#include <sys/mman.h>
#include <sys/stat.h>
#include <sys/types.h>
#include "securec.h"


using namespace testing::ext;
using namespace std;

static const int PAGE_SIZE = 1024;

class MincoreApiTest : public testing::Test {
public:
    static void SetUpTestCase();
    static void TearDownTestCase();
    void SetUp();
    void TearDown();
private:
};
void MincoreApiTest::SetUp()
{
}
void MincoreApiTest::TearDown()
{
}
void MincoreApiTest::SetUpTestCase()
{
}
void MincoreApiTest::TearDownTestCase()
{
}

/*
 * @tc.number : SUB_KERNEL_SYSCALL_MINCORE_0100
 * @tc.name   : MincoreCheckPageInMemorySuccess_0001
 * @tc.desc   : Mincore determine whether page are resident in memory.
 * @tc.size   : MediumTest
 * @tc.type   : Function
 * @tc.level  : Level 1
 */
HWTEST_F(MincoreApiTest, MincoreCheckPageInMemorySuccess_0001, Function | MediumTest | Level1)
{
    int ret;
    size_t length = PAGE_SIZE * 4;
    unsigned char *vec = new unsigned char[(length / PAGE_SIZE) + 1]();

    void *addr = mmap(nullptr, length, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
    EXPECT_NE(addr, MAP_FAILED);

    ret = mincore(addr, length, vec);
    EXPECT_EQ(ret, 0);

    munmap(addr, length);
    delete [] vec;
}

/*
 * @tc.number : SUB_KERNEL_SYSCALL_MINCORE_0200
 * @tc.name   : MincoreCheckPageInvalidAddrFail_0002
 * @tc.desc   : Mincore determine whether page are resident in invalid memory addr fail.
 * @tc.size   : MediumTest
 * @tc.type   : Function
 * @tc.level  : Level 2
 */
HWTEST_F(MincoreApiTest, MincoreCheckPageInMemoryFail_0002, Function | MediumTest | Level2)
{
    int ret;
    size_t length = PAGE_SIZE * 4;
    unsigned char *vec = new unsigned char[(length / PAGE_SIZE) + 1]();

    errno = 0;
    ret = mincore(MAP_FAILED, length, vec);
    EXPECT_EQ(ret, -1);
    EXPECT_EQ(errno, EINVAL);
    delete [] vec;
}

/*
 * @tc.number : SUB_KERNEL_SYSCALL_MINCORE_0300
 * @tc.name   : MincoreCheckPageInvalidLengthFail_0003
 * @tc.desc   : Mincore determine whether page are resident in invalid memory addr fail.
 * @tc.size   : MediumTest
 * @tc.type   : Function
 * @tc.level  : Level 2
 */
HWTEST_F(MincoreApiTest, MincoreCheckPageInvalidLengthFail_0003, Function | MediumTest | Level2)
{
    int ret;
    size_t length = PAGE_SIZE * 4;
    unsigned char *vec = new unsigned char[(length / PAGE_SIZE) + 1]();
    void *addr = mmap(nullptr, length, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
    EXPECT_NE(addr, MAP_FAILED);

    errno = 0;
    ret = mincore(MAP_FAILED, 0, vec);
    EXPECT_EQ(ret, -1);
    EXPECT_EQ(errno, EINVAL);
    munmap(addr, length);
    delete [] vec;
}