From e6ddb932ff5563e6278c1068b5c1829bea5caf44 Mon Sep 17 00:00:00 2001
From: Florent Peyrusse <florent.peyrusse@external.equans.com>
Date: Fri, 20 Oct 2023 13:56:53 +0200
Subject: [PATCH] refs #1207 Added log wrapper functions to be able to see logs
 in unit tests output.

Signed-off-by: Florent Peyrusse <florent.peyrusse@external.equans.com>
---
 C/common/include/log_utils.h           | 67 ++++++++++++++++++++++++++
 tests/unit/C/common/CMakeLists.txt     |  1 +
 tests/unit/C/common/test_log_utils.cpp | 13 +++++
 3 files changed, 81 insertions(+)
 create mode 100644 C/common/include/log_utils.h
 create mode 100644 tests/unit/C/common/test_log_utils.cpp

diff --git a/C/common/include/log_utils.h b/C/common/include/log_utils.h
new file mode 100644
index 0000000000..cb8c350b0c
--- /dev/null
+++ b/C/common/include/log_utils.h
@@ -0,0 +1,67 @@
+#ifndef _LOG_UTILS_H
+#define _LOG_UTILS_H
+/*
+ * Log utility functions
+ *
+ * Copyright (c) 2017-2018 OSisoft, LLC
+ *
+ * Released under the Apache 2.0 Licence
+ *
+ * Author: Mark Riddoch, Massimiliano Pinto
+ */
+
+#include <string>
+#include <logger.h>
+
+namespace LogUtils {
+    /*
+     * Log helper functions that will log both in the Fledge syslog file and in stdout for unit tests
+     */
+
+    template<class... Args>
+    void log_debug(const std::string& format, Args&&... args) {  
+        #ifdef UNIT_TEST
+        printf(std::string(format).append("\n").c_str(), std::forward<Args>(args)...);
+        fflush(stdout);
+        #endif
+        Logger::getLogger()->debug(format.c_str(), std::forward<Args>(args)...);
+    }
+
+    template<class... Args>
+    void log_info(const std::string& format, Args&&... args) {    
+        #ifdef UNIT_TEST
+        printf(std::string(format).append("\n").c_str(), std::forward<Args>(args)...);
+        fflush(stdout);
+        #endif
+        Logger::getLogger()->info(format.c_str(), std::forward<Args>(args)...);
+    }
+
+    template<class... Args>
+    void log_warn(const std::string& format, Args&&... args) { 
+        #ifdef UNIT_TEST  
+        printf(std::string(format).append("\n").c_str(), std::forward<Args>(args)...);
+        fflush(stdout);
+        #endif
+        Logger::getLogger()->warn(format.c_str(), std::forward<Args>(args)...);
+    }
+
+    template<class... Args>
+    void log_error(const std::string& format, Args&&... args) {   
+        #ifdef UNIT_TEST
+        printf(std::string(format).append("\n").c_str(), std::forward<Args>(args)...);
+        fflush(stdout);
+        #endif
+        Logger::getLogger()->error(format.c_str(), std::forward<Args>(args)...);
+    }
+
+    template<class... Args>
+    void log_fatal(const std::string& format, Args&&... args) {  
+        #ifdef UNIT_TEST
+        printf(std::string(format).append("\n").c_str(), std::forward<Args>(args)...);
+        fflush(stdout);
+        #endif
+        Logger::getLogger()->fatal(format.c_str(), std::forward<Args>(args)...);
+    }
+}
+
+#endif /* _LOG_UTILS_H */
diff --git a/tests/unit/C/common/CMakeLists.txt b/tests/unit/C/common/CMakeLists.txt
index 3285063627..118a241898 100644
--- a/tests/unit/C/common/CMakeLists.txt
+++ b/tests/unit/C/common/CMakeLists.txt
@@ -129,3 +129,4 @@ setup_target_for_coverage_gcovr_xml(
             DEPENDENCIES ${PROJECT_NAME}
     )
 
+target_compile_definitions(${PROJECT_NAME} PRIVATE UNIT_TEST)
\ No newline at end of file
diff --git a/tests/unit/C/common/test_log_utils.cpp b/tests/unit/C/common/test_log_utils.cpp
new file mode 100644
index 0000000000..ea965cfb44
--- /dev/null
+++ b/tests/unit/C/common/test_log_utils.cpp
@@ -0,0 +1,13 @@
+#include <gtest/gtest.h>
+
+#include "log_utils.h"
+
+TEST(LogUtilsTest, LogWrappers)
+{
+    std::string text("This message is at level %s");
+    ASSERT_NO_THROW(LogUtils::log_debug(text.c_str(), "debug"));
+    ASSERT_NO_THROW(LogUtils::log_info(text.c_str(), "info"));
+    ASSERT_NO_THROW(LogUtils::log_warn(text.c_str(), "warning"));
+    ASSERT_NO_THROW(LogUtils::log_error(text.c_str(), "error"));
+    ASSERT_NO_THROW(LogUtils::log_fatal(text.c_str(), "fatal"));
+}
\ No newline at end of file