text: // Licensed to the Apache Software Foundation (ASF) under one
  // or more contributor license agreements.  See the NOTICE file
  // distributed with this work for additional information
  // regarding copyright ownership.  The ASF licenses this file
  // to you 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 "util/file_utils.h"
  
  #include <algorithm>
  #include <filesystem>
  #include <fstream>
  #include <set>
  #include <vector>
  
  #include "agent/status.h"
  #include "common/configbase.h"
  #include "env/env.h"
  #include "gmock/gmock.h"
  #include "gtest/gtest.h"
  #include "olap/file_helper.h"
  #include "olap/olap_define.h"
  #include "util/logging.h"
  
  #ifndef BE_TEST
  #define BE_TEST
  #endif
  
  using ::testing::_;
  using ::testing::Return;
  using ::testing::SetArgPointee;
  using std::string;
  
  namespace doris {
  
  class FileUtilsTest : public testing::Test {
  public:
      // create a mock cgroup folder
      virtual void SetUp() {
          ASSERT_FALSE(std::filesystem::exists(_s_test_data_path));
          // create a mock cgroup path
          ASSERT_TRUE(std::filesystem::create_directory(_s_test_data_path));
      }
      void save_string_file(const std::filesystem::path& filename, const std::string& content) {
          std::ofstream file;
          file.exceptions(std::ofstream::failbit | std::ofstream::badbit);
          file.open(filename, std::ios_base::binary);
          file.write(content.c_str(), content.size());
      }
  
      // delete the mock cgroup folder
      virtual void TearDown() { ASSERT_TRUE(std::filesystem::remove_all(_s_test_data_path)); }
  
      static std::string _s_test_data_path;
  };
  
  std::string FileUtilsTest::_s_test_data_path = "./file_utils_testxxxx123";
  
  TEST_F(FileUtilsTest, TestCopyFile) {
      FileHandler src_file_handler;
      std::string src_file_name = _s_test_data_path + "/abcd12345.txt";
      // create a file using open
      ASSERT_FALSE(std::filesystem::exists(src_file_name));
      OLAPStatus op_status = src_file_handler.open_with_mode(
              src_file_name, O_CREAT | O_EXCL | O_WRONLY, S_IRUSR | S_IWUSR);
      ASSERT_EQ(OLAPStatus::OLAP_SUCCESS, op_status);
      ASSERT_TRUE(std::filesystem::exists(src_file_name));
  
      char large_bytes2[(1 << 12)];
      memset(&large_bytes2, 0, sizeof(large_bytes2));
      int i = 0;
      while (i < 1 << 10) {
          src_file_handler.write(&large_bytes2, sizeof(large_bytes2));
          ++i;
      }
      src_file_handler.write(&large_bytes2, 13);
      src_file_handler.close();
  
      std::string dst_file_name = _s_test_data_path + "/abcd123456.txt";
      FileUtils::copy_file(src_file_name, dst_file_name);
      FileHandler dst_file_handler;
      dst_file_handler.open(dst_file_name, O_RDONLY);
      int64_t dst_length = dst_file_handler.length();
      int64_t src_length = 4194317;
      ASSERT_EQ(src_length, dst_length);
  }
  
  TEST_F(FileUtilsTest, TestRemove) {
      // remove_all
      ASSERT_TRUE(FileUtils::remove_all("./file_test").ok());
      ASSERT_FALSE(FileUtils::check_exist("./file_test"));
  
      ASSERT_TRUE(FileUtils::create_dir("./file_test/123/456/789").ok());
      ASSERT_TRUE(FileUtils::create_dir("./file_test/abc/def/zxc").ok());
      ASSERT_TRUE(FileUtils::create_dir("./file_test/abc/123").ok());
  
      save_string_file("./file_test/s1", "123");
      save_string_file("./file_test/123/s2", "123");
  
      ASSERT_TRUE(FileUtils::check_exist("./file_test"));
      ASSERT_TRUE(FileUtils::remove_all("./file_test").ok());
      ASSERT_FALSE(FileUtils::check_exist("./file_test"));
  
      // remove
      ASSERT_TRUE(FileUtils::create_dir("./file_test/abc/123").ok());
      save_string_file("./file_test/abc/123/s2", "123");
  
      ASSERT_FALSE(FileUtils::remove("./file_test").ok());
      ASSERT_FALSE(FileUtils::remove("./file_test/abc/").ok());
      ASSERT_FALSE(FileUtils::remove("./file_test/abc/123").ok());
  
      ASSERT_TRUE(FileUtils::check_exist("./file_test/abc/123/s2"));
      ASSERT_TRUE(FileUtils::remove("./file_test/abc/123/s2").ok());
      ASSERT_FALSE(FileUtils::check_exist("./file_test/abc/123/s2"));
  
      ASSERT_TRUE(FileUtils::check_exist("./file_test/abc/123"));
      ASSERT_TRUE(FileUtils::remove("./file_test/abc/123/").ok());
      ASSERT_FALSE(FileUtils::check_exist("./file_test/abc/123"));
  
      ASSERT_TRUE(FileUtils::remove_all("./file_test").ok());
      ASSERT_FALSE(FileUtils::check_exist("./file_test"));
  
      // remove paths
      ASSERT_TRUE(FileUtils::create_dir("./file_test/123/456/789").ok());
      ASSERT_TRUE(FileUtils::create_dir("./file_test/abc/def/zxc").ok());
      save_string_file("./file_test/s1", "123");
      save_string_file("./file_test/s2", "123");
  
      std::vector<std::string> ps;
      ps.push_back("./file_test/123/456/789");
      ps.push_back("./file_test/123/456");
      ps.push_back("./file_test/123");
  
      ASSERT_TRUE(FileUtils::check_exist("./file_test/123"));
      ASSERT_TRUE(FileUtils::remove_paths(ps).ok());
      ASSERT_FALSE(FileUtils::check_exist("./file_test/123"));
  
      ps.clear();
      ps.push_back("./file_test/s1");
      ps.push_back("./file_test/abc/def");
  
      ASSERT_FALSE(FileUtils::remove_paths(ps).ok());
      ASSERT_FALSE(FileUtils::check_exist("./file_test/s1"));
      ASSERT_TRUE(FileUtils::check_exist("./file_test/abc/def/"));
  
      ps.clear();
      ps.push_back("./file_test/abc/def/zxc");
      ps.push_back("./file_test/s2");
      ps.push_back("./file_test/abc/def");
      ps.push_back("./file_test/abc");
  
      ASSERT_TRUE(FileUtils::remove_paths(ps).ok());
      ASSERT_FALSE(FileUtils::check_exist("./file_test/s2"));
      ASSERT_FALSE(FileUtils::check_exist("./file_test/abc"));
  
      ASSERT_TRUE(FileUtils::remove_all("./file_test").ok());
  }
  
  TEST_F(FileUtilsTest, TestCreateDir) {
      // normal
      std::string path = "./file_test/123/456/789";
      FileUtils::remove_all("./file_test");
      ASSERT_FALSE(FileUtils::check_exist(path));
  
      ASSERT_TRUE(FileUtils::create_dir(path).ok());
  
      ASSERT_TRUE(FileUtils::check_exist(path));
      ASSERT_TRUE(FileUtils::is_dir("./file_test"));
      ASSERT_TRUE(FileUtils::is_dir("./file_test/123"));
      ASSERT_TRUE(FileUtils::is_dir("./file_test/123/456"));
      ASSERT_TRUE(FileUtils::is_dir("./file_test/123/456/789"));
  
      FileUtils::remove_all("./file_test");
  
      // normal
      path = "./file_test/123/456/789/";
      FileUtils::remove_all("./file_test");
      ASSERT_FALSE(FileUtils::check_exist(path));
  
      ASSERT_TRUE(FileUtils::create_dir(path).ok());
  
      ASSERT_TRUE(FileUtils::check_exist(path));
      ASSERT_TRUE(FileUtils::is_dir("./file_test"));
      ASSERT_TRUE(FileUtils::is_dir("./file_test/123"));
      ASSERT_TRUE(FileUtils::is_dir("./file_test/123/456"));
      ASSERT_TRUE(FileUtils::is_dir("./file_test/123/456/789"));
  
      FileUtils::remove_all("./file_test");
  
      // absolute path;
      std::string real_path;
      Env::Default()->canonicalize(".", &real_path);
      ASSERT_TRUE(FileUtils::create_dir(real_path + "/file_test/absolute/path/123/asdf").ok());
      ASSERT_TRUE(FileUtils::is_dir("./file_test/absolute/path/123/asdf"));
      FileUtils::remove_all("./file_test");
  }
  
  TEST_F(FileUtilsTest, TestListDirsFiles) {
      std::string path = "./file_test/";
      FileUtils::remove_all(path);
      FileUtils::create_dir("./file_test/1");
      FileUtils::create_dir("./file_test/2");
      FileUtils::create_dir("./file_test/3");
      FileUtils::create_dir("./file_test/4");
      FileUtils::create_dir("./file_test/5");
  
      std::set<string> dirs;
      std::set<string> files;
  
      ASSERT_TRUE(FileUtils::list_dirs_files("./file_test", &dirs, &files, Env::Default()).ok());
      ASSERT_EQ(5, dirs.size());
      ASSERT_EQ(0, files.size());
  
      dirs.clear();
      files.clear();
  
      ASSERT_TRUE(FileUtils::list_dirs_files("./file_test", &dirs, nullptr, Env::Default()).ok());
      ASSERT_EQ(5, dirs.size());
      ASSERT_EQ(0, files.size());
  
      save_string_file("./file_test/f1", "just test");
      save_string_file("./file_test/f2", "just test");
      save_string_file("./file_test/f3", "just test");
  
      dirs.clear();
      files.clear();
  
      ASSERT_TRUE(FileUtils::list_dirs_files("./file_test", &dirs, &files, Env::Default()).ok());
      ASSERT_EQ(5, dirs.size());
      ASSERT_EQ(3, files.size());
  
      dirs.clear();
      files.clear();
  
      ASSERT_TRUE(FileUtils::list_dirs_files("./file_test", nullptr, &files, Env::Default()).ok());
      ASSERT_EQ(0, dirs.size());
      ASSERT_EQ(3, files.size());
  
      FileUtils::remove_all(path);
  }
  } // namespace doris
  
  int main(int argc, char** argv) {
      std::string conffile = std::string(getenv("DORIS_HOME")) + "/conf/be.conf";
      if (!doris::config::init(conffile.c_str(), false)) {
          fprintf(stderr, "error read config file. \n");
          return -1;
      }
      doris::init_glog("be-test");
      ::testing::InitGoogleTest(&argc, argv);
      return RUN_ALL_TESTS();
  }
  