Add ServerConfig tests

Author: kcudnik

unittest/lib/Makefile.am

@@ -18,7 +18,8 @@ tests_SOURCES = \
 				TestZeroMQChannel.cpp \
 				TestSwitchContainer.cpp \
 				TestSwitchConfigContainer.cpp \
-				TestSkipRecordAttrContainer.cpp
+				TestSkipRecordAttrContainer.cpp \
+				TestServerConfig.cpp
 
 tests_CXXFLAGS = $(DBGFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS_COMMON)
 tests_LDADD = $(LDADD_GTEST) $(top_srcdir)/lib/libSaiRedis.a -lhiredis -lswsscommon -lpthread -L$(top_srcdir)/meta/.libs -lsaimetadata -lsaimeta -lzmq $(CODE_COVERAGE_LIBS)

unittest/lib/TestServerConfig.cpp

@@ -0,0 +1,15 @@
+#include "ServerConfig.h"
+
+#include <gtest/gtest.h>
+
+#include <memory>
+
+using namespace sairedis;
+
+TEST(ServerConfig, loadFromFile)
+{
+    EXPECT_NE(ServerConfig::loadFromFile("/not_existing"), nullptr);
+
+    EXPECT_NE(ServerConfig::loadFromFile("files/server_config_ok.json"), nullptr);
+    EXPECT_NE(ServerConfig::loadFromFile("files/server_config_bad.json"), nullptr);
+}