From aa369974ea63b143444bac3d2f149119736c713c Mon Sep 17 00:00:00 2001
From: Ackerley Tng <ackerleytng@gmail.com>
Date: Tue, 7 Jul 2020 21:17:51 +0800
Subject: [PATCH] Override << operator for better test error messages

---
 jwt_verify_lib/status.h | 8 ++++++++
 src/status.cc           | 8 ++++++++
 2 files changed, 16 insertions(+)

diff --git a/jwt_verify_lib/status.h b/jwt_verify_lib/status.h
index 4b26d57..1c55570 100644
--- a/jwt_verify_lib/status.h
+++ b/jwt_verify_lib/status.h
@@ -209,6 +209,14 @@ enum class Status {
   JwksBioAllocError,
 };
 
+/**
+ * Overload << to output a Status to std::ostream
+ * @param os the std::ostream to write to
+ * @param status is the enum status.
+ * @return the std::ostream os
+ */
+std::ostream& operator<<(std::ostream& os, const Status& status);
+
 /**
  * Convert enum status to string.
  * @param status is the enum status.
diff --git a/src/status.cc b/src/status.cc
index 3f7abb4..e96f186 100644
--- a/src/status.cc
+++ b/src/status.cc
@@ -15,6 +15,7 @@
 #include "jwt_verify_lib/status.h"
 
 #include <map>
+#include <iostream>
 
 namespace google {
 namespace jwt_verify {
@@ -173,5 +174,12 @@ std::string getStatusString(Status status) {
   return "";
 }
 
+std::ostream& operator<<(std::ostream& os, const Status& status) {
+  return os <<
+      "Status(" <<
+      static_cast<int>(status) << ", " <<
+      getStatusString(status) << ")";
+}
+
 }  // namespace jwt_verify
 }  // namespace google