Add first version

[ric-plt/sdl.git] / tst / asynchiredisdatabasediscovery_test.cpp

diff --git a/tst/asynchiredisdatabasediscovery_test.cpp b/tst/asynchiredisdatabasediscovery_test.cpp
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+++ b/tst/asynchiredisdatabasediscovery_test.cpp
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+/*
+   Copyright (c) 2018-2019 Nokia.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+#include <type_traits>
+#include <memory>
+#include <cstring>
+#include <arpa/inet.h>
+#include <gtest/gtest.h>
+#include "private/createlogger.hpp"
+#include "private/databaseconfigurationimpl.hpp"
+#include "private/logger.hpp"
+#include "private/redis/asynchiredisdatabasediscovery.hpp"
+#include "private/redis/databaseinfo.hpp"
+#include "private/tst/enginemock.hpp"
+
+using namespace shareddatalayer;
+using namespace shareddatalayer::redis;
+using namespace shareddatalayer::tst;
+using namespace testing;
+
+namespace
+{
+    class AsyncHiredisDatabaseDiscoveryBaseTest: public testing::Test
+    {
+    public:
+        shareddatalayer::DatabaseConfiguration::Addresses someKnownStandaloneDatabaseAddress;
+        shareddatalayer::DatabaseConfiguration::Addresses someKnownClusterDatabaseAddresses;
+        std::shared_ptr<StrictMock<EngineMock>> engineMock;
+        const std::string defaultNamespaceName;
+        std::unique_ptr<AsyncHiredisDatabaseDiscovery> standaloneDiscovery;
+        std::unique_ptr<AsyncHiredisDatabaseDiscovery> clusterDiscovery;
+        Engine::Callback postedCallback;
+        std::shared_ptr<Logger> logger;
+
+        MOCK_METHOD1(stateChangedCb, void(const DatabaseInfo&));
+
+        AsyncHiredisDatabaseDiscoveryBaseTest():
+            someKnownStandaloneDatabaseAddress({ HostAndPort("addr1", htons(28416)) }),
+            someKnownClusterDatabaseAddresses({ HostAndPort("addr1", htons(28416)),
+                                                HostAndPort("addr2", htons(56832)) }),
+            engineMock(std::make_shared<StrictMock<EngineMock>>()),
+            defaultNamespaceName("namespace"),
+            logger(createLogger(SDL_LOG_PREFIX))
+        {
+        }
+
+        virtual ~AsyncHiredisDatabaseDiscoveryBaseTest()
+        {
+        }
+
+        void expectStateChangedCbForStandalone()
+        {
+            EXPECT_CALL(*this, stateChangedCb(_))
+                .Times(1)
+                .WillOnce(Invoke([this](const DatabaseInfo& databaseInfo)
+                                 {
+                                     EXPECT_THAT(someKnownStandaloneDatabaseAddress, ContainerEq(databaseInfo.hosts));
+                                     EXPECT_EQ(DatabaseInfo::Type::SINGLE, databaseInfo.type);
+                                     EXPECT_STREQ(defaultNamespaceName.c_str(), databaseInfo.ns->c_str());
+                                 }));
+        }
+
+        void expectStateChangedCbForCluster()
+        {
+            EXPECT_CALL(*this, stateChangedCb(_))
+                .Times(1)
+                .WillOnce(Invoke([this](const DatabaseInfo& databaseInfo)
+                                 {
+                                     EXPECT_THAT(someKnownClusterDatabaseAddresses, ContainerEq(databaseInfo.hosts));
+                                     EXPECT_EQ(DatabaseInfo::Type::CLUSTER, databaseInfo.type);
+                                     EXPECT_EQ(DatabaseInfo::Discovery::HIREDIS, databaseInfo.discovery);
+                                     EXPECT_STREQ(defaultNamespaceName.c_str(), databaseInfo.ns->c_str());
+                                 }));
+        }
+
+        void expectPostStateChangedCb()
+        {
+            EXPECT_CALL(*engineMock, postCallback(_))
+                .Times(1)
+                .WillOnce(SaveArg<0>(&postedCallback));
+        }
+
+        void callPostedCallback()
+        {
+            ASSERT_NE(postedCallback, nullptr);
+            postedCallback();
+        }
+    };
+
+    class AsyncHiredisDatabaseDiscoveryTest: public AsyncHiredisDatabaseDiscoveryBaseTest
+    {
+    public:
+        AsyncHiredisDatabaseDiscoveryTest()
+        {
+            InSequence dummy;
+            standaloneDiscovery.reset(new AsyncHiredisDatabaseDiscovery(engineMock,
+                                                                        defaultNamespaceName,
+                                                                        DatabaseInfo::Type::SINGLE,
+                                                                        someKnownStandaloneDatabaseAddress,
+                                                                        logger));
+            clusterDiscovery.reset(new AsyncHiredisDatabaseDiscovery(engineMock,
+                                                                     defaultNamespaceName,
+                                                                     DatabaseInfo::Type::CLUSTER,
+                                                                     someKnownClusterDatabaseAddresses,
+                                                                     logger));
+        }
+
+        ~AsyncHiredisDatabaseDiscoveryTest()
+        {
+        }
+    };
+}
+
+TEST_F(AsyncHiredisDatabaseDiscoveryBaseTest, IsNotCopyable)
+{
+    InSequence dummy;
+    EXPECT_FALSE(std::is_copy_constructible<AsyncHiredisDatabaseDiscovery>::value);
+    EXPECT_FALSE(std::is_copy_assignable<AsyncHiredisDatabaseDiscovery>::value);
+}
+
+TEST_F(AsyncHiredisDatabaseDiscoveryBaseTest, ImplementsAsyncDatabaseDiscovery)
+{
+    InSequence dummy;
+    EXPECT_TRUE((std::is_base_of<AsyncDatabaseDiscovery, AsyncHiredisDatabaseDiscovery>::value));
+}
+
+TEST_F(AsyncHiredisDatabaseDiscoveryTest, StateChangedCallbackIsPostedImmediately)
+{
+    InSequence dummy;
+    expectPostStateChangedCb();
+    clusterDiscovery->setStateChangedCb(std::bind(&AsyncHiredisDatabaseDiscoveryTest::stateChangedCb,
+                                                  this,
+                                                  std::placeholders::_1));
+    expectStateChangedCbForCluster();
+    callPostedCallback();
+
+    expectPostStateChangedCb();
+    standaloneDiscovery->setStateChangedCb(std::bind(&AsyncHiredisDatabaseDiscoveryTest::stateChangedCb,
+                                                     this,
+                                                     std::placeholders::_1));
+    expectStateChangedCbForStandalone();
+    callPostedCallback();
+}