diff --git a/tests/Makefile b/tests/Makefile
index 5d58c35c..fc428a9b 100644
--- a/tests/Makefile
+++ b/tests/Makefile
@@ -1,5 +1,5 @@
 CXX	?= g++
-CXXFLAGS	=  -D_WIN32_WINNT=0x600 -march=native -Wall  -pedantic -std=c++11 -pthread -Wl,--no-as-needed -O
+CXXFLAGS	=  -Wall  -pedantic -std=c++11 -pthread -Wl,--no-as-needed -O2
 LDPFALGS = -pthread -flto
 
 CPP_FILES := $(wildcard *.cpp)
diff --git a/tests/file_log.cpp b/tests/file_log.cpp
index 41167f05..ac8bc158 100644
--- a/tests/file_log.cpp
+++ b/tests/file_log.cpp
@@ -10,7 +10,6 @@ static std::string file_contents(const std::string& filename)
 
 }
 
-
 static std::size_t count_lines(const std::string& filename)
 {
     std::ifstream ifs(filename);
@@ -51,12 +50,9 @@ TEST_CASE("simple_file_logger", "[simple_logger]]")
     std::string filename = "logs/simple_log.txt";
 
     auto logger = spdlog::create<spdlog::sinks::simple_file_sink_mt>("logger", filename);
-
-    REQUIRE_THROWS_AS(
-        auto logger = spdlog::create<spdlog::sinks::simple_file_sink_mt>("logger2", filename);
-        , spdlog::spdlog_ex);
-
     logger->set_pattern("%v");
+
+    
     logger->info("Test message {}", 1);
     logger->info("Test message {}", 2);
     logger->flush();
@@ -107,7 +103,7 @@ TEST_CASE("daily_logger", "[daily_logger]]")
 {
 
     delete_logs();
-    //calculate filename (time based)
+//calculate filename (time based)
     std::string basename = "logs/daily_log";
     std::tm tm = spdlog::details::os::localtime();
     fmt::MemoryWriter w;
diff --git a/tests/format.cpp b/tests/format.cpp
index 2221900f..5182b267 100644
--- a/tests/format.cpp
+++ b/tests/format.cpp
@@ -2,7 +2,8 @@
 #include "includes.h"
 
 template<class T>
-std::string log_info(const T& what, spdlog::level::level_enum logger_level = spdlog::level::info) {
+std::string log_info(const T& what, spdlog::level::level_enum logger_level = spdlog::level::info)
+{
 
     std::ostringstream oss;
     auto oss_sink = std::make_shared<spdlog::sinks::ostream_sink_mt>(oss);
@@ -28,13 +29,15 @@ struct some_logged_class
     some_logged_class(const std::string val) :value(val) {};
     std::string value;
 };
-std::ostream& operator<<(std::ostream& os, const some_logged_class& c) {
+std::ostream& operator<<(std::ostream& os, const some_logged_class& c)
+{
     return os << c.value;
 }
 
 
 
-TEST_CASE("basic_logging ", "[basic_logging]") {
+TEST_CASE("basic_logging ", "[basic_logging]")
+{
     //const char
     REQUIRE(log_info("Hello") == "Hello");
     REQUIRE(log_info("") == "");