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test_file_helper.cpp
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/*
* This content is released under the MIT License as specified in
* https://raw.githubusercontent.com/gabime/spdlog/master/LICENSE
*/
#include "includes.h"
#define TEST_FILENAME "test_logs/file_helper_test.txt"
using spdlog::details::file_helper;
static void write_with_helper(file_helper &helper, size_t howmany) {
spdlog::memory_buf_t formatted;
spdlog::fmt_lib::format_to(std::back_inserter(formatted), "{}", std::string(howmany, '1'));
helper.write(formatted);
helper.flush();
}
TEST_CASE("file_helper_filename", "[file_helper::filename()]") {
prepare_logdir();
file_helper helper;
spdlog::filename_t target_filename = SPDLOG_FILENAME_T(TEST_FILENAME);
helper.open(target_filename);
REQUIRE(helper.filename() == target_filename);
}
TEST_CASE("file_helper_size", "[file_helper::size()]") {
prepare_logdir();
spdlog::filename_t target_filename = SPDLOG_FILENAME_T(TEST_FILENAME);
size_t expected_size = 123;
{
file_helper helper;
helper.open(target_filename);
write_with_helper(helper, expected_size);
REQUIRE(static_cast<size_t>(helper.size()) == expected_size);
}
REQUIRE(get_filesize(TEST_FILENAME) == expected_size);
}
TEST_CASE("file_helper_reopen", "[file_helper::reopen()]") {
prepare_logdir();
spdlog::filename_t target_filename = SPDLOG_FILENAME_T(TEST_FILENAME);
file_helper helper;
helper.open(target_filename);
write_with_helper(helper, 12);
REQUIRE(helper.size() == 12);
helper.reopen(true);
REQUIRE(helper.size() == 0);
}
TEST_CASE("file_helper_reopen2", "[file_helper::reopen(false)]") {
prepare_logdir();
spdlog::filename_t target_filename = SPDLOG_FILENAME_T(TEST_FILENAME);
size_t expected_size = 14;
file_helper helper;
helper.open(target_filename);
write_with_helper(helper, expected_size);
REQUIRE(helper.size() == expected_size);
helper.reopen(false);
REQUIRE(helper.size() == expected_size);
}
static void test_split_ext(const spdlog::filename_t::value_type *fname,
const spdlog::filename_t::value_type *expect_base,
const spdlog::filename_t::value_type *expect_ext) {
spdlog::filename_t filename(fname);
spdlog::filename_t expected_base(expect_base);
spdlog::filename_t expected_ext(expect_ext);
spdlog::filename_t basename;
spdlog::filename_t ext;
std::tie(basename, ext) = file_helper::split_by_extension(filename);
REQUIRE(basename == expected_base);
REQUIRE(ext == expected_ext);
}
TEST_CASE("file_helper_split_by_extension", "[file_helper::split_by_extension()]") {
test_split_ext(SPDLOG_FILENAME_T("mylog.txt"), SPDLOG_FILENAME_T("mylog"),
SPDLOG_FILENAME_T(".txt"));
test_split_ext(SPDLOG_FILENAME_T(".mylog.txt"), SPDLOG_FILENAME_T(".mylog"),
SPDLOG_FILENAME_T(".txt"));
test_split_ext(SPDLOG_FILENAME_T(".mylog"), SPDLOG_FILENAME_T(".mylog"), SPDLOG_FILENAME_T(""));
test_split_ext(SPDLOG_FILENAME_T("/aaa/bb.d/mylog"), SPDLOG_FILENAME_T("/aaa/bb.d/mylog"),
SPDLOG_FILENAME_T(""));
test_split_ext(SPDLOG_FILENAME_T("/aaa/bb.d/mylog.txt"), SPDLOG_FILENAME_T("/aaa/bb.d/mylog"),
SPDLOG_FILENAME_T(".txt"));
test_split_ext(SPDLOG_FILENAME_T("aaa/bbb/ccc/mylog.txt"),
SPDLOG_FILENAME_T("aaa/bbb/ccc/mylog"), SPDLOG_FILENAME_T(".txt"));
test_split_ext(SPDLOG_FILENAME_T("aaa/bbb/ccc/mylog."), SPDLOG_FILENAME_T("aaa/bbb/ccc/mylog."),
SPDLOG_FILENAME_T(""));
test_split_ext(SPDLOG_FILENAME_T("aaa/bbb/ccc/.mylog.txt"),
SPDLOG_FILENAME_T("aaa/bbb/ccc/.mylog"), SPDLOG_FILENAME_T(".txt"));
test_split_ext(SPDLOG_FILENAME_T("/aaa/bbb/ccc/mylog.txt"),
SPDLOG_FILENAME_T("/aaa/bbb/ccc/mylog"), SPDLOG_FILENAME_T(".txt"));
test_split_ext(SPDLOG_FILENAME_T("/aaa/bbb/ccc/.mylog"),
SPDLOG_FILENAME_T("/aaa/bbb/ccc/.mylog"), SPDLOG_FILENAME_T(""));
test_split_ext(SPDLOG_FILENAME_T("../mylog.txt"), SPDLOG_FILENAME_T("../mylog"),
SPDLOG_FILENAME_T(".txt"));
test_split_ext(SPDLOG_FILENAME_T(".././mylog.txt"), SPDLOG_FILENAME_T(".././mylog"),
SPDLOG_FILENAME_T(".txt"));
test_split_ext(SPDLOG_FILENAME_T(".././mylog.txt/xxx"), SPDLOG_FILENAME_T(".././mylog.txt/xxx"),
SPDLOG_FILENAME_T(""));
test_split_ext(SPDLOG_FILENAME_T("/mylog.txt"), SPDLOG_FILENAME_T("/mylog"),
SPDLOG_FILENAME_T(".txt"));
test_split_ext(SPDLOG_FILENAME_T("//mylog.txt"), SPDLOG_FILENAME_T("//mylog"),
SPDLOG_FILENAME_T(".txt"));
test_split_ext(SPDLOG_FILENAME_T(""), SPDLOG_FILENAME_T(""), SPDLOG_FILENAME_T(""));
test_split_ext(SPDLOG_FILENAME_T("."), SPDLOG_FILENAME_T("."), SPDLOG_FILENAME_T(""));
test_split_ext(SPDLOG_FILENAME_T("..txt"), SPDLOG_FILENAME_T("."), SPDLOG_FILENAME_T(".txt"));
}
TEST_CASE("file_event_handlers", "[file_helper]") {
enum class flags { before_open, after_open, before_close, after_close };
prepare_logdir();
spdlog::filename_t test_filename = SPDLOG_FILENAME_T(TEST_FILENAME);
// define event handles that update vector of flags when called
std::vector<flags> events;
spdlog::file_event_handlers handlers;
handlers.before_open = [&](spdlog::filename_t filename) {
REQUIRE(filename == test_filename);
events.push_back(flags::before_open);
};
handlers.after_open = [&](spdlog::filename_t filename, std::FILE *fstream) {
REQUIRE(filename == test_filename);
REQUIRE(fstream);
fputs("after_open\n", fstream);
events.push_back(flags::after_open);
};
handlers.before_close = [&](spdlog::filename_t filename, std::FILE *fstream) {
REQUIRE(filename == test_filename);
REQUIRE(fstream);
fputs("before_close\n", fstream);
events.push_back(flags::before_close);
};
handlers.after_close = [&](spdlog::filename_t filename) {
REQUIRE(filename == test_filename);
events.push_back(flags::after_close);
};
{
spdlog::details::file_helper helper{handlers};
REQUIRE(events.empty());
helper.open(test_filename);
REQUIRE(events == std::vector<flags>{flags::before_open, flags::after_open});
events.clear();
helper.close();
REQUIRE(events == std::vector<flags>{flags::before_close, flags::after_close});
REQUIRE(file_contents(TEST_FILENAME) == "after_open\nbefore_close\n");
helper.reopen(true);
events.clear();
}
// make sure that the file_helper destructor calls the close callbacks if needed
REQUIRE(events == std::vector<flags>{flags::before_close, flags::after_close});
REQUIRE(file_contents(TEST_FILENAME) == "after_open\nbefore_close\n");
}
TEST_CASE("file_helper_open", "[file_helper]") {
prepare_logdir();
spdlog::filename_t target_filename = SPDLOG_FILENAME_T(TEST_FILENAME);
file_helper helper;
helper.open(target_filename);
helper.close();
target_filename += SPDLOG_FILENAME_T("/invalid");
REQUIRE_THROWS_AS(helper.open(target_filename), spdlog::spdlog_ex);
}