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/*
* Copyright 2009- ECMWF.
*
* This software is licensed under the terms of the Apache Licence version 2.0
* which can be obtained at http://www.apache.org/licenses/LICENSE-2.0.
* In applying this licence, ECMWF does not waive the privileges and immunities
* granted to it by virtue of its status as an intergovernmental organisation
* nor does it submit to any jurisdiction.
*/
#include <fstream>
#include <iostream>
#include <boost/test/unit_test.hpp>
#include "ecflow/server/CheckPtSaver.hpp"
#include "ecflow/test/scaffold/Naming.hpp"
/**
* A self cleaning test file, useful to automate test data storage/cleanup, with automatic generation of file names.
*/
class TestFile {
public:
/**
* Create a handle for a 'non-existent' data file
*/
explicit TestFile(const std::string& basename) : absolute_path_(TestFile::unique_absolute_path(basename)) {}
/**
* Create a handle for a data file, with the given content
*/
TestFile(const std::string& basename, const std::string& content)
: absolute_path_(TestFile::unique_absolute_path(basename)) {
f_store(absolute_path_.string(), content);
}
~TestFile() { fs::remove(absolute_path_); }
[[nodiscard]] const fs::path& path() const { return absolute_path_; }
[[nodiscard]] std::string load() const { return f_load(absolute_path_); }
static fs::path unique_absolute_path(const std::string& basename) {
return fs::absolute(fs::unique_path(basename));
}
private:
static void f_store(const fs::path& outfile, const std::string& data) {
std::ofstream ofs(outfile.string());
ofs << data;
}
static std::string f_load(const fs::path& infile) {
std::ifstream ifs(infile.string());
std::string buffer((std::istreambuf_iterator<char>(ifs)), std::istreambuf_iterator<char>());
return buffer;
}
private:
fs::path absolute_path_;
};
void handle_store(const fs::path& temporary) {
std::ofstream ofs(temporary.string());
ofs << "2";
}
BOOST_AUTO_TEST_SUITE(U_Server)
BOOST_AUTO_TEST_SUITE(T_CheckPtSaver)
BOOST_AUTO_TEST_CASE(test_checkpt_store_successful_case0) {
ECF_NAME_THIS_TEST();
// Case 0: neither current and backup exist
TestFile current("current_%%%%-%%%%-%%%%"); // Important: no actual file is created
TestFile backup("backup_%%%%-%%%%-%%%%"); // Important: no actual file is created
CheckPtSaver::storeWithBackup(current.path(), backup.path(), handle_store);
BOOST_CHECK_EQUAL(current.load(), "2");
BOOST_CHECK(!fs::exists(backup.path()));
}
BOOST_AUTO_TEST_CASE(test_checkpt_store_successful_case1) {
ECF_NAME_THIS_TEST();
// Case 1: current and backup both exist and are non-empty
TestFile current("current_%%%%-%%%%-%%%%", "1");
TestFile backup("backup_%%%%-%%%%-%%%%", "X");
CheckPtSaver::storeWithBackup(current.path(), backup.path(), handle_store);
BOOST_CHECK_EQUAL(current.load(), "2");
BOOST_CHECK_EQUAL(backup.load(), "1");
}
BOOST_AUTO_TEST_CASE(test_checkpt_store_successful_case2) {
ECF_NAME_THIS_TEST();
// Case 2: current and backup both exist, and current is empty
TestFile current("current_%%%%-%%%%-%%%%", ""); // Important: file is created empty
TestFile backup("backup_%%%%-%%%%-%%%%", "X");
CheckPtSaver::storeWithBackup(current.path(), backup.path(), handle_store);
BOOST_CHECK_EQUAL(current.load(), "2");
BOOST_CHECK_EQUAL(backup.load(), "X");
}
BOOST_AUTO_TEST_CASE(test_checkpt_store_successful_case3) {
ECF_NAME_THIS_TEST();
// Case 3: current exists, but no backup is available
TestFile current("current_%%%%-%%%%-%%%%", "1");
TestFile backup("backup_%%%%-%%%%-%%%%"); // Important: no actual file is created
CheckPtSaver::storeWithBackup(current.path(), backup.path(), handle_store);
BOOST_CHECK_EQUAL(current.load(), "2");
BOOST_CHECK_EQUAL(backup.load(), "1");
}
BOOST_AUTO_TEST_SUITE_END()
BOOST_AUTO_TEST_SUITE_END()
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