Implement new experimental cassandra backend (#537)

unittests/backend/cassandra/SettingsProviderTests.cpp

@@ -0,0 +1,118 @@
+//------------------------------------------------------------------------------
+/*
+    This file is part of clio: https://github.com/XRPLF/clio
+    Copyright (c) 2023, the clio developers.
+
+    Permission to use, copy, modify, and distribute this software for any
+    purpose with or without fee is hereby granted, provided that the above
+    copyright notice and this permission notice appear in all copies.
+
+    THE  SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+    WITH  REGARD  TO  THIS  SOFTWARE  INCLUDING  ALL  IMPLIED  WARRANTIES  OF
+    MERCHANTABILITY  AND  FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+    ANY  SPECIAL,  DIRECT,  INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+    WHATSOEVER  RESULTING  FROM  LOSS  OF USE, DATA OR PROFITS, WHETHER IN AN
+    ACTION  OF  CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+//==============================================================================
+
+#include <util/Fixtures.h>
+#include <util/TmpFile.h>
+
+#include <backend/cassandra/SettingsProvider.h>
+#include <config/Config.h>
+
+#include <boost/json/parse.hpp>
+#include <gtest/gtest.h>
+
+#include <thread>
+#include <variant>
+
+using namespace clio;
+using namespace std;
+namespace json = boost::json;
+
+using namespace Backend::Cassandra;
+
+class SettingsProviderTest : public NoLoggerFixture
+{
+};
+
+TEST_F(SettingsProviderTest, Defaults)
+{
+    Config cfg{json::parse(R"({"contact_points": "127.0.0.1"})")};
+    SettingsProvider provider{cfg};
+
+    auto const settings = provider.getSettings();
+    EXPECT_EQ(settings.threads, std::thread::hardware_concurrency());
+
+    EXPECT_EQ(settings.enableLog, false);
+    EXPECT_EQ(settings.connectionTimeout, std::chrono::milliseconds{1000});
+    EXPECT_EQ(settings.requestTimeout, std::chrono::milliseconds{0});
+    EXPECT_EQ(settings.certificate, std::nullopt);
+    EXPECT_EQ(settings.username, std::nullopt);
+    EXPECT_EQ(settings.password, std::nullopt);
+
+    auto const* cp =
+        std::get_if<Settings::ContactPoints>(&settings.connectionInfo);
+    ASSERT_TRUE(cp != nullptr);
+    EXPECT_EQ(cp->contactPoints, "127.0.0.1");
+    EXPECT_FALSE(cp->port);
+
+    EXPECT_EQ(provider.getKeyspace(), "clio");
+    EXPECT_EQ(provider.getReplicationFactor(), 3);
+    EXPECT_EQ(provider.getTablePrefix(), std::nullopt);
+}
+
+TEST_F(SettingsProviderTest, SimpleConfig)
+{
+    Config cfg{json::parse(R"({
+        "contact_points": "123.123.123.123",
+        "port": 1234,
+        "keyspace": "test",
+        "replication_factor": 42,
+        "table_prefix": "prefix",
+        "threads": 24
+    })")};
+    SettingsProvider provider{cfg};
+
+    auto const settings = provider.getSettings();
+    EXPECT_EQ(settings.threads, 24);
+
+    auto const* cp =
+        std::get_if<Settings::ContactPoints>(&settings.connectionInfo);
+    ASSERT_TRUE(cp != nullptr);
+    EXPECT_EQ(cp->contactPoints, "123.123.123.123");
+    EXPECT_EQ(cp->port, 1234);
+
+    EXPECT_EQ(provider.getKeyspace(), "test");
+    EXPECT_EQ(provider.getReplicationFactor(), 42);
+    EXPECT_EQ(provider.getTablePrefix(), "prefix");
+}
+
+TEST_F(SettingsProviderTest, SecureBundleConfig)
+{
+    Config cfg{json::parse(R"({"secure_connect_bundle": "bundleData"})")};
+    SettingsProvider provider{cfg};
+
+    auto const settings = provider.getSettings();
+    auto const* sb =
+        std::get_if<Settings::SecureConnectionBundle>(&settings.connectionInfo);
+    ASSERT_TRUE(sb != nullptr);
+    EXPECT_EQ(sb->bundle, "bundleData");
+}
+
+TEST_F(SettingsProviderTest, CertificateConfig)
+{
+    TmpFile file{"certificateData"};
+    Config cfg{json::parse(
+        R"({
+        "contact_points": "127.0.0.1",
+        "certfile": ")" +
+        file.path + "\"}")};
+    SettingsProvider provider{cfg};
+
+    auto const settings = provider.getSettings();
+    EXPECT_EQ(settings.certificate, "certificateData");
+}