add os subtest (#19304)

* add os subtest

* fix/test.cpp include header file

Co-authored-by: facetosea <25808407@qq.com>

source/os/CMakeLists.txt

@@ -60,3 +60,7 @@ endif()
 IF (JEMALLOC_ENABLED)
     target_link_libraries(os PUBLIC -ljemalloc)
 ENDIF ()
+
+if(${BUILD_TEST})
+    add_subdirectory(test)
+endif(${BUILD_TEST})

source/os/test/osTests.cpp

@@ -27,6 +27,7 @@
 #pragma GCC diagnostic ignored "-Wpointer-arith"
 
 #include "os.h"
+#include "tlog.h"
 
 TEST(osTest, osSystem) {
   const char *flags = "UTL FATAL ";