diff --git a/test/internal/utils.cpp b/test/internal/utils.cpp
new file mode 100644
index 0000000..2a347ca
--- /dev/null
+++ b/test/internal/utils.cpp
@@ -0,0 +1,38 @@
+#include <gtest/gtest.h>
+#include <sdeventplus/internal/utils.hpp>
+#include <stdexcept>
+#include <system_error>
+
+namespace sdeventplus
+{
+namespace internal
+{
+namespace
+{
+
+TEST(UtilsTest, PerformCallbackSuccess)
+{
+    EXPECT_EQ(0, performCallback([]() {}));
+}
+
+TEST(UtilsTest, SetPrepareSystemError)
+{
+    EXPECT_EQ(-EBUSY, performCallback([]() {
+        throw std::system_error(EBUSY, std::generic_category());
+    }));
+}
+
+TEST(UtilsTest, SetPrepareException)
+{
+    EXPECT_EQ(-ENOSYS,
+              performCallback([]() { throw std::runtime_error("Exception"); }));
+}
+
+TEST(UtilsTest, SetPrepareUnknownException)
+{
+    EXPECT_EQ(-ENOSYS, performCallback([]() { throw static_cast<int>(1); }));
+}
+
+} // namespace
+} // namespace internal
+} // namespace sdeventplus