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// Copyright 2025 Huawei Cloud Computing Technology 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 "src/utils/cpp/tmp_dir.hpp"
#include <cstdlib>
#include <filesystem>
#include <memory>
#include <string>
#include "catch2/catch_test_macros.hpp"
#include "src/buildtool/file_system/file_system_manager.hpp"
TEST_CASE("tmp_dir", "[tmp_dir]") {
char const* const env_tmpdir = std::getenv("TEST_TMPDIR");
REQUIRE(env_tmpdir != nullptr);
auto const test_tempdir =
std::filesystem::path{std::string{env_tmpdir}} / ".test_build_root";
REQUIRE(FileSystemManager::CreateDirectory(test_tempdir));
SECTION("simple") {
// Create a temp directory
auto temp_dir = TmpDir::Create(test_tempdir / "test_dir");
REQUIRE(temp_dir != nullptr);
// Create one more temp directory at the same location to ensure the
// template gets populated, and a new directory gets created
auto temp_dir_2 = TmpDir::Create(test_tempdir / "test_dir");
REQUIRE(temp_dir_2 != nullptr);
std::filesystem::path const temp_dir_path = temp_dir->GetPath();
REQUIRE(FileSystemManager::Exists(temp_dir_path));
{
auto temp_dir_clone = temp_dir;
temp_dir = nullptr;
REQUIRE(FileSystemManager::Exists(temp_dir_path));
}
REQUIRE(not FileSystemManager::Exists(temp_dir_path));
std::filesystem::path const temp_dir_path_2 = temp_dir_2->GetPath();
REQUIRE(FileSystemManager::Exists(temp_dir_path_2));
{
auto temp_dir_clone = temp_dir_2;
temp_dir_2 = nullptr;
REQUIRE(FileSystemManager::Exists(temp_dir_path_2));
}
REQUIRE(not FileSystemManager::Exists(temp_dir_path_2));
}
SECTION("nested directories") {
auto parent_dir = TmpDir::Create(test_tempdir / "test_dir");
REQUIRE(parent_dir != nullptr);
std::filesystem::path const parent = parent_dir->GetPath();
auto child_dir_1 = TmpDir::CreateNestedDirectory(parent_dir);
REQUIRE(child_dir_1);
std::filesystem::path const child_1 = child_dir_1->GetPath();
auto child_dir_2 = TmpDir::CreateNestedDirectory(parent_dir);
REQUIRE(child_dir_2);
std::filesystem::path const child_2 = child_dir_2->GetPath();
REQUIRE(FileSystemManager::Exists(parent));
REQUIRE(FileSystemManager::Exists(child_1));
REQUIRE(FileSystemManager::Exists(child_2));
// Kill the parent directory. child_1 and child_2 still retain
// references to the parent object, so all folders should remain alive:
parent_dir = nullptr;
REQUIRE(FileSystemManager::Exists(parent));
REQUIRE(FileSystemManager::Exists(child_1));
REQUIRE(FileSystemManager::Exists(child_2));
// Kill child_1. child_1 dies, but child_2 retains a reference to the
// parent directory, so parent and child_2 must be alive:
child_dir_1 = nullptr;
REQUIRE(FileSystemManager::Exists(parent));
REQUIRE(not FileSystemManager::Exists(child_1));
REQUIRE(FileSystemManager::Exists(child_2));
// Kill child_2. All directories should be destroyed:
child_dir_2 = nullptr;
REQUIRE(not FileSystemManager::Exists(parent));
REQUIRE(not FileSystemManager::Exists(child_1));
REQUIRE(not FileSystemManager::Exists(child_2));
}
SECTION("temp files") {
auto parent_dir = TmpDir::Create(test_tempdir / "test_dir");
REQUIRE(parent_dir != nullptr);
std::filesystem::path const parent = parent_dir->GetPath();
auto file = TmpDir::CreateFile(parent_dir);
REQUIRE(file != nullptr);
std::filesystem::path const file_path = file->GetPath();
REQUIRE(FileSystemManager::Exists(parent));
REQUIRE(FileSystemManager::Exists(file_path));
// Kill the parent directory. File still retains a reference to the
// parent object, so parent should remain alive:
parent_dir = nullptr;
REQUIRE(FileSystemManager::Exists(parent));
REQUIRE(FileSystemManager::Exists(file_path));
// Kill the file. Both the parent directory and the file should be
// deleted:
file = nullptr;
REQUIRE(not FileSystemManager::Exists(parent));
REQUIRE(not FileSystemManager::Exists(file_path));
}
}
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