diff --git a/aos/common/queue_testutils.cc b/aos/common/queue_testutils.cc
index 629c9be..8d195c5 100644
--- a/aos/common/queue_testutils.cc
+++ b/aos/common/queue_testutils.cc
@@ -2,6 +2,9 @@
 
 #include <string.h>
 #include <sys/mman.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <assert.h>
 
 #include "gtest/gtest.h"
 
@@ -113,13 +116,18 @@
 
 const size_t kCoreSize = 0x100000;
 
+void TerminateExitHandler() {
+  _exit(EXIT_SUCCESS);
+}
+
 }  // namespace
 
 GlobalCoreInstance::GlobalCoreInstance() {
   global_core = &global_core_data_;
-  global_core->owner = 1;
-  // Use mmap(2) manually so that we can pass MAP_SHARED so that forked
-  // processes can still communicate using the "shared" memory.
+  global_core->owner = true;
+  // Use mmap(2) manually instead of through malloc(3) so that we can pass
+  // MAP_SHARED which allows forked processes to communicate using the
+  // "shared" memory.
   void *memory = mmap(NULL, kCoreSize, PROT_READ | PROT_WRITE,
                       MAP_SHARED | MAP_ANONYMOUS, -1, 0);
   assert(memory != MAP_FAILED);
@@ -138,6 +146,10 @@
   enable_test_logging_once.Get();
 }
 
+void PreventExit() {
+  assert(atexit(TerminateExitHandler) == 0);
+}
+
 }  // namespace testing
 }  // namespace common
 }  // namespace aos