add PrintTo for vespalib::string

1 files changed, 9 insertions, 0 deletions

diff --git a/vespalib/src/vespa/vespalib/gtest/gtest.h b/vespalib/src/vespa/vespalib/gtest/gtest.h
index f4aaa670e76..a584c75c434 100644
--- a/vespalib/src/vespa/vespalib/gtest/gtest.h
+++ b/vespalib/src/vespa/vespalib/gtest/gtest.h
@@ -3,6 +3,15 @@
 #pragma once
 
 #include <gtest/gtest.h>
+#include <vespa/vespalib/stllike/string.h>
+#include <iostream>
+
+namespace vespalib {
+// Tell google test how to print vespalib::string values:
+static inline void PrintTo(const vespalib::string & value, std::ostream * os) {
+    *os << value;
+}
+}
 
 /**
  * Macro for creating a main function that runs all gtests.