testConfigManager.cpp

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/**
 * @file
 * @ingroup daq_ocm_libdaq_test
 * @copyright (c) Copyright ESO 2022
 * All Rights Reserved
 * ESO (eso.org) is an Intergovernmental Organisation, and therefore special legal conditions apply.
 *
 * @brief Test log4cplus helpers
 */
#include <gtest/gtest.h>
 
#include <daq/config/manager.hpp>
#include <fmt/ostream.h>
 
struct TestConfig {
    int value0 = 0;                  // default
    std::string value1 = "default";  // default
};
 
class TestConfigManager : public ::testing::Test {
public:
    TestConfigManager()
        : m_config(), m_config_manager(&m_config, log4cplus::Logger::getInstance("test")) {
    }
 
protected:
    TestConfig m_config;
    daq::config::Manager<TestConfig> m_config_manager;
};
 
TEST_F(TestConfigManager, Register) {
    m_config_manager.Register(&TestConfig::value0, {"value0", "description"});
    m_config_manager.Register(&TestConfig::value1, {"value1", "description"});
 
    EXPECT_THROW(m_config_manager.Register(&TestConfig::value0, {}), std::invalid_argument);
}
 
TEST_F(TestConfigManager, Get) {
    m_config_manager.Register(&TestConfig::value0, {"value0", "description value0"});
 
    auto val = m_config_manager.Get(&TestConfig::value0);
    EXPECT_EQ(val.value, m_config.value0);
    EXPECT_EQ(val.origin.origin, daq::config::Origin::Default);
    EXPECT_EQ(val.origin.description, "");
    EXPECT_EQ(val.metadata.canonical_name, "value0");
    EXPECT_EQ(val.metadata.description, "description value0");
 
    EXPECT_THROW(m_config_manager.Get(&TestConfig::value1), std::invalid_argument)
        << "value1 has not been registered and Get() should throw invalid_argument in that case";
}
 
TEST_F(TestConfigManager, Update) {
    m_config_manager.Register(&TestConfig::value0, {"value0", "description value0"});
    m_config_manager.Register(&TestConfig::value1, {"value1", "description value1"});
 
    {
        // Pre-test check (covered by testcase "Get")
        auto val = m_config_manager.Get(&TestConfig::value0);
        EXPECT_EQ(val.value, m_config.value0);
        ASSERT_EQ(val.origin.origin, daq::config::Origin::Default);
    }
 
    // Test
    m_config_manager.Update(&TestConfig::value0, 2, {daq::config::Origin::CommandLine, "args"});
    auto val = m_config_manager.Get(&TestConfig::value0);
    EXPECT_EQ(val.value, m_config.value0);
    EXPECT_EQ(val.origin.origin, daq::config::Origin::CommandLine);
    EXPECT_EQ(val.origin.description, "args");
    EXPECT_EQ(val.metadata.canonical_name, "value0");
    EXPECT_EQ(val.metadata.description, "description value0");
}