test(file_logger): remove old logs across suffixes

tests/file_logger_remove_old_logs_suffixes_test.cpp

@@ -0,0 +1,45 @@
+#define LOGIT_FILE_LOGGER_PATH "."
+#include <LogIt.hpp>
+#include <fstream>
+#include <string>
+#if __cplusplus >= 201703L
+#include <filesystem>
+#endif
+
+int main() {
+    const std::string dir = "remove_old_logs_test";
+    LOGIT_ADD_FILE_LOGGER(dir, false, 0, "%v");
+    LOGIT_INFO("init");
+    std::string current = LOGIT_GET_LAST_FILE_PATH(0);
+#if __cplusplus >= 201703L
+    std::filesystem::path log_dir = std::filesystem::path(current).parent_path();
+    std::filesystem::path old1 = log_dir / "2000-01-01.log";
+    std::filesystem::path old2 = log_dir / "2000-01-01.1.log";
+    std::filesystem::path old3 = log_dir / "2000-01-01.log.gz";
+    std::ofstream(old1).close();
+    std::ofstream(old2).close();
+    std::ofstream(old3).close();
+#else
+    std::string log_dir = current.substr(0, current.find_last_of("/\\"));
+    std::string old1 = log_dir + "/2000-01-01.log";
+    std::string old2 = log_dir + "/2000-01-01.1.log";
+    std::string old3 = log_dir + "/2000-01-01.log.gz";
+    std::ofstream(old1.c_str()).close();
+    std::ofstream(old2.c_str()).close();
+    std::ofstream(old3.c_str()).close();
+#endif
+    LOGIT_INFO("remove");
+    LOGIT_SHUTDOWN();
+#if __cplusplus >= 201703L
+    bool exists = std::filesystem::exists(old1) || std::filesystem::exists(old2) || std::filesystem::exists(old3);
+#else
+    bool exists = false;
+    std::ifstream f1(old1.c_str());
+    if (f1.good()) exists = true;
+    std::ifstream f2(old2.c_str());
+    if (f2.good()) exists = true;
+    std::ifstream f3(old3.c_str());
+    if (f3.good()) exists = true;
+#endif
+    return exists ? 1 : 0;
+}