diff --git a/http/ut/utility_test.cpp b/http/ut/utility_test.cpp
new file mode 100644
index 0000000..0f40756
--- /dev/null
+++ b/http/ut/utility_test.cpp
@@ -0,0 +1,18 @@
+#include "utility.h"
+
+#include "gmock/gmock.h"
+
+TEST(Utility, Base64DecodeAuthString)
+{
+    std::string authString("dXNlcm40bWU6cGFzc3cwcmQ=");
+    std::string result;
+    EXPECT_TRUE(crow::utility::base64Decode(authString, result));
+    EXPECT_EQ(result, "usern4me:passw0rd");
+}
+
+TEST(Utility, Base64DecodeNonAscii)
+{
+    std::string junkString("\xff\xee\xdd\xcc\x01\x11\x22\x33");
+    std::string result;
+    EXPECT_FALSE(crow::utility::base64Decode(junkString, result));
+}