1 files changed, 43 insertions, 0 deletions
diff --git a/src/rocksdb/util/event_logger_test.cc b/src/rocksdb/util/event_logger_test.cc
new file mode 100644
index 00000000..4bcf30ff
--- /dev/null
+++ b/src/rocksdb/util/event_logger_test.cc
@@ -0,0 +1,43 @@
+//  Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
+//  This source code is licensed under both the GPLv2 (found in the
+//  COPYING file in the root directory) and Apache 2.0 License
+//  (found in the LICENSE.Apache file in the root directory).
+
+#include <string>
+
+#include "util/event_logger.h"
+#include "util/testharness.h"
+
+namespace rocksdb {
+
+class EventLoggerTest : public testing::Test {};
+
+class StringLogger : public Logger {
+ public:
+  using Logger::Logv;
+  void Logv(const char* format, va_list ap) override {
+    vsnprintf(buffer_, sizeof(buffer_), format, ap);
+  }
+  char* buffer() { return buffer_; }
+
+ private:
+  char buffer_[1000];
+};
+
+TEST_F(EventLoggerTest, SimpleTest) {
+  StringLogger logger;
+  EventLogger event_logger(&logger);
+  event_logger.Log() << "id" << 5 << "event"
+                     << "just_testing";
+  std::string output(logger.buffer());
+  ASSERT_TRUE(output.find("\"event\": \"just_testing\"") != std::string::npos);
+  ASSERT_TRUE(output.find("\"id\": 5") != std::string::npos);
+  ASSERT_TRUE(output.find("\"time_micros\"") != std::string::npos);
+}
+
+}  // namespace rocksdb
+
+int main(int argc, char** argv) {
+  ::testing::InitGoogleTest(&argc, argv);
+  return RUN_ALL_TESTS();
+}