Start up redis server, and initialize Sonic DB for tests

Signed-off-by: Saikrishna Arcot <[email protected]>

.azure-pipelines/build.yml

@@ -40,7 +40,8 @@ jobs:
           libnl-3-dev \
           libnl-route-3-dev \
           libnl-genl-3-dev \
-          libnl-nf-3-dev
+          libnl-nf-3-dev \
+          redis-server
 
     displayName: "Install dependencies"
   - checkout: self

Makefile

@@ -12,7 +12,7 @@ override LDLIBS += -levent -lhiredis -lswsscommon -pthread -lboost_thread -lboos
 override CPPFLAGS += -Wall -std=c++17 -fPIE -I/usr/include/swss
 override CPPFLAGS += -MMD -MP -MF"$(@:%.o=%.d)" -MT"$(@)"
 CPPFLAGS_TEST := --coverage -fprofile-arcs -ftest-coverage -fprofile-generate
-LDLIBS_TEST := --coverage -lgtest_main -lgtest -pthread -lstdc++fs
+LDLIBS_TEST := --coverage -lgtest -pthread -lstdc++fs
 PWD := $(shell pwd)
 
 all: $(DHCP6RELAY_TARGET) $(DHCP6RELAY_TEST_TARGET)

test/MockRelay.cpp

@@ -687,8 +687,3 @@ TEST(relay, dhcp6relay_stop) {
   event_new(base, filter, EV_READ|EV_PERSIST, callback, &config);
   dhcp6relay_stop();
 }
-
-int main_test(int argc, char *argv[]) {
-  ::testing::InitGoogleTest(&argc, argv);
-  return RUN_ALL_TESTS();
-}

test/main.cpp

@@ -0,0 +1,28 @@
+#include "gtest/gtest.h"
+#include <swss/dbconnector.h>
+#include <string>
+
+std::string database_config = "./test/database_config.json";
+
+class DhcpRelayEnvironment : public ::testing::Environment {
+public:
+    // Override this to define how to set up the environment.
+    void SetUp() override {
+        // by default , init should be false
+        EXPECT_FALSE(swss::SonicDBConfig::isInit());
+
+        // load local config file, init should be true
+        swss::SonicDBConfig::initialize(database_config);
+        EXPECT_TRUE(swss::SonicDBConfig::isInit());
+    }
+};
+
+int main(int argc, char* argv[])
+{
+    testing::InitGoogleTest(&argc, argv);
+    // Registers a global test environment, and verifies that the
+    // registration function returns its argument.
+    DhcpRelayEnvironment* env = new DhcpRelayEnvironment;
+    testing::AddGlobalTestEnvironment(env);
+    return RUN_ALL_TESTS();
+}

test/subdir.mk

@@ -1,5 +1,6 @@
 TEST_SRCS += \
 test/mock_send.cpp \
+test/main.cpp \
 src/relay.cpp \
 src/configInterface.cpp \
 test/MockRelay.cpp