From bbec3b57e296543c5005b93ad1d74c6e3ad34a40 Mon Sep 17 00:00:00 2001
From: Benjamin Barenblat <bbaren@google.com>
Date: Thu, 4 Feb 2021 10:04:07 -0500
Subject: Add convenience functions to logging framework

Reviewed-by: Alex Chernyakhovsky <achernya@google.com>
---
 log.h       | 20 ++++++++++++++++++++
 log_test.cc | 24 ++++++++++++++++++++++++
 2 files changed, 44 insertions(+)

diff --git a/log.h b/log.h
index fe2015b..e0d3963 100644
--- a/log.h
+++ b/log.h
@@ -61,6 +61,26 @@ class Log final {
   template <typename... Args>
   void Message(Level, Args...);
 
+  template <typename... Args>
+  void Debug(Args... args) {
+    Message(kDebug, args...);
+  }
+
+  template <typename... Args>
+  void Info(Args... args) {
+    Message(kInfo, args...);
+  }
+
+  template <typename... Args>
+  void Warning(Args... args) {
+    Message(kWarning, args...);
+  }
+
+  template <typename... Args>
+  void Error(Args... args) {
+    Message(kError, args...);
+  }
+
  private:
   std::string prefix_;
   Level minimum_level_;
diff --git a/log_test.cc b/log_test.cc
index cec1199..0ceb3f2 100644
--- a/log_test.cc
+++ b/log_test.cc
@@ -56,5 +56,29 @@ TEST(LogTest, HidesUninterestingMessages) {
   EXPECT_THAT(s.str(), IsEmpty());
 }
 
+TEST(LogTest, DedicatedDebugFunction) {
+  std::ostringstream s;
+  Log("program", Log::kDebug, s).Debug("message");
+  EXPECT_THAT(s.str(), HasSubstr("debug:"));
+}
+
+TEST(LogTest, DedicatedInfoFunction) {
+  std::ostringstream s;
+  Log("program", s).Info("message");
+  EXPECT_EQ(s.str(), "program: message\n");
+}
+
+TEST(LogTest, DedicatedWarningFunction) {
+  std::ostringstream s;
+  Log("program", s).Warning("message");
+  EXPECT_THAT(s.str(), HasSubstr("warning:"));
+}
+
+TEST(LogTest, DedicatedErrorFunction) {
+  std::ostringstream s;
+  Log("program", s).Error("message");
+  EXPECT_THAT(s.str(), HasSubstr("error:"));
+}
+
 }  // namespace
 }  // namespace gsrsup
-- 
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