/*
 * Copyright (c) 2021 Huawei Device Co., Ltd.
 * 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 <dlfcn.h>
#include <hwext/gtest-ext.h>
#include <hwext/gtest-tag.h>

#include "hook_client.h"
#include "musl_preinit_common.h"

using namespace testing::ext;

namespace {
constexpr uint32_t g_size = 1024;
constexpr uint32_t g_resize = 2048;

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

/**
 * @tc.name: native hook
 * @tc.desc: Test hook malloc normal process.
 * @tc.type: FUNC
 */
HWTEST_F(NativeHookTest, NormalMallocHookTest, TestSize.Level1)
{
    EXPECT_TRUE(ohos_malloc_hook_initialize(&__libc_malloc_default_dispatch, NULL, NULL));
    EXPECT_TRUE(ohos_malloc_hook_on_start());

    void* mallocBlack = ohos_malloc_hook_malloc(g_size);
    EXPECT_NE(mallocBlack, nullptr);

    ohos_malloc_hook_free(mallocBlack);

    EXPECT_TRUE(ohos_malloc_hook_on_end());
}

/**
 * @tc.name: native hook
 * @tc.desc: Test hook realloc normal process.
 * @tc.type: FUNC
 */
HWTEST_F(NativeHookTest, NormalHookReallocTest, TestSize.Level1)
{
    EXPECT_TRUE(ohos_malloc_hook_initialize(&__libc_malloc_default_dispatch, NULL, NULL));
    EXPECT_TRUE(ohos_malloc_hook_on_start());

    void* mallocBlack = ohos_malloc_hook_malloc(g_size);
    EXPECT_NE(mallocBlack, nullptr);
    void* reallocBlack = ohos_malloc_hook_realloc(mallocBlack, g_resize);
    EXPECT_NE(reallocBlack, nullptr);

    ohos_malloc_hook_free(reallocBlack);

    EXPECT_TRUE(ohos_malloc_hook_on_end());
}

/**
 * @tc.name: native hook
 * @tc.desc: Test hook calloc normal process.
 * @tc.type: FUNC
 */
HWTEST_F(NativeHookTest, NormalHookCallocTest, TestSize.Level1)
{
    EXPECT_TRUE(ohos_malloc_hook_initialize(&__libc_malloc_default_dispatch, NULL, NULL));
    EXPECT_TRUE(ohos_malloc_hook_on_start());

    void* callocBlack = ohos_malloc_hook_calloc(g_size, g_resize);
    EXPECT_NE(callocBlack, nullptr);

    ohos_malloc_hook_free(callocBlack);

    EXPECT_TRUE(ohos_malloc_hook_on_end());
}

/**
 * @tc.name: native hook
 * @tc.desc: Test hook valloc normal process.
 * @tc.type: FUNC
 */
HWTEST_F(NativeHookTest, NormalHookVallocTest, TestSize.Level1)
{
    EXPECT_TRUE(ohos_malloc_hook_initialize(&__libc_malloc_default_dispatch, NULL, NULL));
    EXPECT_TRUE(ohos_malloc_hook_on_start());

    void* vallocBlack = ohos_malloc_hook_valloc(g_size);
    EXPECT_EQ(vallocBlack, nullptr);

    ohos_malloc_hook_free(vallocBlack);

    EXPECT_TRUE(ohos_malloc_hook_on_end());
}

/**
 * @tc.name: native hook
 * @tc.desc: Test hook memalign normal process.
 * @tc.type: FUNC
 */
HWTEST_F(NativeHookTest, NormalHookMemalignTest, TestSize.Level1)
{
    EXPECT_TRUE(ohos_malloc_hook_initialize(&__libc_malloc_default_dispatch, NULL, NULL));
    EXPECT_TRUE(ohos_malloc_hook_on_start());

    void* memalignBlack = ohos_malloc_hook_memalign(g_size, g_resize);
    EXPECT_EQ(memalignBlack, nullptr);
    EXPECT_EQ(static_cast<int>(ohos_malloc_hook_malloc_usable_size(memalignBlack)), 0);

    ohos_malloc_hook_free(memalignBlack);

    EXPECT_TRUE(ohos_malloc_hook_on_end());
}

/**
 * @tc.name: native hook
 * @tc.desc: Test multi hook malloc normal process.
 * @tc.type: FUNC
 */
HWTEST_F(NativeHookTest, NormalTest, TestSize.Level1)
{
    EXPECT_TRUE(ohos_malloc_hook_initialize(&__libc_malloc_default_dispatch, NULL, NULL));
    EXPECT_TRUE(ohos_malloc_hook_on_start());

    void* mallocBlack = ohos_malloc_hook_malloc(g_size);
    EXPECT_NE(mallocBlack, nullptr);
    void* reallocBlack = ohos_malloc_hook_realloc(mallocBlack, g_resize);
    EXPECT_NE(reallocBlack, nullptr);
    void* callocBlack = ohos_malloc_hook_calloc(g_size, g_resize);
    EXPECT_NE(callocBlack, nullptr);
    void* vallocBlack = ohos_malloc_hook_valloc(g_size);
    EXPECT_EQ(vallocBlack, nullptr);
    void* memalignBlack = ohos_malloc_hook_memalign(g_size, g_resize);
    EXPECT_EQ(memalignBlack, nullptr);
    EXPECT_EQ(static_cast<int>(ohos_malloc_hook_malloc_usable_size(memalignBlack)), 0);

    ohos_malloc_hook_free(memalignBlack);
    ohos_malloc_hook_free(vallocBlack);
    ohos_malloc_hook_free(callocBlack);
    ohos_malloc_hook_free(reallocBlack);

    EXPECT_TRUE(ohos_malloc_hook_on_end());
}

/**
 * @tc.name: native hook
 * @tc.desc: Test other process.
 * @tc.type: FUNC
 */
HWTEST_F(NativeHookTest, NormalOtherTest, TestSize.Level1)
{
    EXPECT_TRUE(ohos_malloc_hook_initialize(&__libc_malloc_default_dispatch, NULL, NULL));
    EXPECT_TRUE(ohos_malloc_hook_on_start());

    ohos_malloc_hook_finalize();

    EXPECT_TRUE(ohos_malloc_hook_on_end());
}

/**
 * @tc.name: native hook
 * @tc.desc: Test failure process.
 * @tc.type: FUNC
 */
HWTEST_F(NativeHookTest, FailureTest, TestSize.Level1)
{
    EXPECT_TRUE(ohos_malloc_hook_initialize(nullptr, NULL, NULL));
    EXPECT_TRUE(ohos_malloc_hook_on_start());
    EXPECT_TRUE(ohos_malloc_hook_on_end());
}

/**
 * @tc.name: native hook
 * @tc.desc: Test set and get malloc hook flag.
 * @tc.type: FUNC
 */
HWTEST_F(NativeHookTest, MallocHookFlag, TestSize.Level1)
{
    bool flag = true;
    bool flagPrev = ohos_malloc_hook_set_hook_flag(flag);

    EXPECT_EQ(ohos_malloc_hook_get_hook_flag(), flag);
    EXPECT_EQ(ohos_malloc_hook_set_hook_flag(flagPrev), flag);
    EXPECT_EQ(ohos_malloc_hook_get_hook_flag(), flagPrev);
}
} // namespace